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authorvincentdarley <vincentdarley>2004-03-25 12:12:35 (GMT)
committervincentdarley <vincentdarley>2004-03-25 12:12:35 (GMT)
commit75791dad3c3d9947598d34c7e0f3470126b401e4 (patch)
treec77eb5434e514789bbeea80e0edf5665959a9c29 /doc
parent36561300e09e603e3ed9f5d1750278417f0c0829 (diff)
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Fix typos in documentation
Diffstat (limited to 'doc')
-rw-r--r--doc/Name.34
-rw-r--r--doc/SetOptions.34
-rw-r--r--doc/WindowId.34
-rw-r--r--doc/event.n6
-rw-r--r--doc/font.n6
-rw-r--r--doc/getOpenFile.n4
-rw-r--r--doc/listbox.n6
-rw-r--r--doc/toplevel.n4
8 files changed, 19 insertions, 19 deletions
diff --git a/doc/Name.3 b/doc/Name.3
index 6f10d97..9357a3b 100644
--- a/doc/Name.3
+++ b/doc/Name.3
@@ -5,7 +5,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: Name.3,v 1.3 2002/01/25 21:09:36 dgp Exp $
+'\" RCS: @(#) $Id: Name.3,v 1.4 2004/03/25 12:12:35 vincentdarley Exp $
'\"
.so man.macros
.TH Tk_Name 3 "" Tk "Tk Library Procedures"
@@ -57,7 +57,7 @@ Path names have a structure similar to file names in Unix but with
dots between elements instead of slashes: the main window for
an application has the path name ``.''; its children have names like
``.a'' and ``.b''; their children have names like ``.a.aa'' and
-``.b.bb''; and so on. A window is considered to be be a child of
+``.b.bb''; and so on. A window is considered to be a child of
another window for naming purposes if the second window was named
as the first window's \fIparent\fR when the first window was created.
This is not always the same as the X window hierarchy. For
diff --git a/doc/SetOptions.3 b/doc/SetOptions.3
index 7abc944..1912e31 100644
--- a/doc/SetOptions.3
+++ b/doc/SetOptions.3
@@ -4,7 +4,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: SetOptions.3,v 1.8 2000/10/01 21:31:35 ericm Exp $
+'\" RCS: @(#) $Id: SetOptions.3,v 1.9 2004/03/25 12:12:36 vincentdarley Exp $
'\"
.so man.macros
.TH Tk_SetOptions 3 8.1 Tk "Tk Library Procedures"
@@ -493,7 +493,7 @@ the original screen-independent value. Thus for TK_OPTION_PIXELS options
it is better to use the \fIobjOffset\fR field. In this case the original
value of the option is retained in the object and can be returned when
the option is retrieved. In most cases it is convenient to use the
-\fIinternalOffset\fR field field as well, so that the integer value is
+\fIinternalOffset\fR field as well, so that the integer value is
immediately available for use in the widget code (alternatively,
\fBTk_GetPixelsFromObj\fR can be used to extract the integer value from
the object whenever it is needed). Note: the problem of losing information
diff --git a/doc/WindowId.3 b/doc/WindowId.3
index 8f930c8..c34fff3 100644
--- a/doc/WindowId.3
+++ b/doc/WindowId.3
@@ -5,7 +5,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: WindowId.3,v 1.7 2002/08/05 04:30:38 dgp Exp $
+'\" RCS: @(#) $Id: WindowId.3,v 1.8 2004/03/25 12:12:36 vincentdarley Exp $
'\"
.so man.macros
.TH Tk_WindowId 3 "8.4" Tk "Tk Library Procedures"
@@ -146,7 +146,7 @@ is a container, and that some other application may be embedding
itself inside \fItkwin\fR.
.PP
\fBTk_IsEmbedded\fR returns a non-zero value if \fItkwin\fR
-is is not a free-standing window, but rather is embedded in some
+is not a free-standing window, but rather is embedded in some
other application.
.PP
\fBTk_IsMapped\fR returns a non-zero value if \fItkwin\fR
diff --git a/doc/event.n b/doc/event.n
index 1d0ead2..cbc36bb 100644
--- a/doc/event.n
+++ b/doc/event.n
@@ -5,7 +5,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: event.n,v 1.6 2000/11/03 01:13:51 hobbs Exp $
+'\" RCS: @(#) $Id: event.n,v 1.7 2004/03/25 12:12:36 vincentdarley Exp $
'\"
.so man.macros
.TH event n 8.3 Tk "Tk Built-In Commands"
@@ -280,7 +280,7 @@ Valid for \fBKeyPress\fR, \fBKeyRelease\fR, \fBButtonPress\fR,
\fBButtonRelease\fR, \fBMotion\fR, \fBEnter\fR, \fBLeave\fR,
\fBExpose\fR, \fBConfigure\fR, \fBGravity\fR, and \fBReparent\fR
events.
-Corresponds to the the \fB%x\fR substitution for binding scripts.
+Corresponds to the \fB%x\fR substitution for binding scripts.
If \fIWindow\fR is empty the coordinate is relative to the
screen, and this option corresponds to the \fB%X\fR substitution
for binding scripts.
@@ -292,7 +292,7 @@ Valid for \fBKeyPress\fR, \fBKeyRelease\fR, \fBButtonPress\fR,
\fBButtonRelease\fR, \fBMotion\fR, \fBEnter\fR, \fBLeave\fR,
\fBExpose\fR, \fBConfigure\fR, \fBGravity\fR, and \fBReparent\fR
events.
-Corresponds to the the \fB%y\fR substitution for binding scripts.
+Corresponds to the \fB%y\fR substitution for binding scripts.
If \fIWindow\fR is empty the coordinate is relative to the
screen, and this option corresponds to the \fB%Y\fR substitution
for binding scripts.
diff --git a/doc/font.n b/doc/font.n
index dc28acd..104be90 100644
--- a/doc/font.n
+++ b/doc/font.n
@@ -4,7 +4,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: font.n,v 1.3 2000/07/25 21:14:35 jenglish Exp $
+'\" RCS: @(#) $Id: font.n,v 1.4 2004/03/25 12:12:36 vincentdarley Exp $
'\"
.so man.macros
.TH font n 8.0 Tk "Tk Built-In Commands"
@@ -24,7 +24,7 @@ first argument. The following forms are currently supported:
.TP
\fBfont actual \fIfont\fR ?\fB\-displayof \fIwindow\fR? ?\fIoption\fR?
.
-Returns information about the the actual attributes that are obtained when
+Returns information about the actual attributes that are obtained when
\fIfont\fR is used on \fIwindow\fR's display; the actual attributes obtained
may differ from the attributes requested due to platform-dependant
limitations, such as the availability of font families and pointsizes.
@@ -192,7 +192,7 @@ above the baseline line plus the descent below the baseline.
\fB\-fixed \0\fR
.
Returns a boolean flag that is ``\fB1\fR'' if this is a fixed-width font,
-where each normal character is the the same width as all the other
+where each normal character is the same width as all the other
characters, or is ``\fB0\fR'' if this is a proportionally-spaced font, where
individual characters have different widths. The widths of control
characters, tab characters, and other non-printing characters are not
diff --git a/doc/getOpenFile.n b/doc/getOpenFile.n
index 18ac2ca..09106a8 100644
--- a/doc/getOpenFile.n
+++ b/doc/getOpenFile.n
@@ -4,7 +4,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: getOpenFile.n,v 1.10 2002/04/19 22:16:02 jenglish Exp $
+'\" RCS: @(#) $Id: getOpenFile.n,v 1.11 2004/03/25 12:12:36 vincentdarley Exp $
'\"
.so man.macros
.TH tk_getOpenFile n 4.2 Tk "Tk Built-In Commands"
@@ -128,7 +128,7 @@ in the sample code matches files that EITHER have a \fB\.gif\fR
extension OR belong to the \fImacType\fR \fBGIFF\fR.
.PP
On the Unix and Windows platforms, a file matches a file pattern
-if its name matches at at least one of the \fIextension\fR(s) of
+if its name matches at least one of the \fIextension\fR(s) of
the file pattern. The \fImacType\fRs are ignored.
.SH "SPECIFYING EXTENSIONS"
.PP
diff --git a/doc/listbox.n b/doc/listbox.n
index 7326497..c84d1d2 100644
--- a/doc/listbox.n
+++ b/doc/listbox.n
@@ -5,7 +5,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: listbox.n,v 1.9 2002/06/21 02:38:54 hobbs Exp $
+'\" RCS: @(#) $Id: listbox.n,v 1.10 2004/03/25 12:12:36 vincentdarley Exp $
'\"
.so man.macros
.TH listbox n 8.4 Tk "Tk Built-In Commands"
@@ -509,11 +509,11 @@ by one page (the height of the window).
The Home and End keys scroll the listbox horizontally to
the left and right edges, respectively.
.IP [10]
-Control-Home sets the location cursor to the the first element in
+Control-Home sets the location cursor to the first element in
the listbox, selects that element, and deselects everything else
in the listbox.
.IP [11]
-Control-End sets the location cursor to the the last element in
+Control-End sets the location cursor to the last element in
the listbox, selects that element, and deselects everything else
in the listbox.
.IP [12]
diff --git a/doc/toplevel.n b/doc/toplevel.n
index 78d4e56..c104e97 100644
--- a/doc/toplevel.n
+++ b/doc/toplevel.n
@@ -5,7 +5,7 @@
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
-'\" RCS: @(#) $Id: toplevel.n,v 1.4 2001/09/26 21:36:19 pspjuth Exp $
+'\" RCS: @(#) $Id: toplevel.n,v 1.5 2004/03/25 12:12:36 vincentdarley Exp $
'\"
.so man.macros
.TH toplevel n 8.4 Tk "Tk Built-In Commands"
@@ -75,7 +75,7 @@ database, and it may not be modified with the \fBconfigure\fR
widget command.
.OP \-use use Use
This option is used for embedding. If the value isn't an empty string,
-it must be the the window identifier of a container window, specified as
+it must be the window identifier of a container window, specified as
a hexadecimal string like the ones returned by the \fBwinfo id\fR
command. The toplevel widget will be created as a child of the given
container instead of the root window for the screen. If the container
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#------------------------------------------------------------------------
# SC_PATH_TCLCONFIG --
#
#	Locate the tclConfig.sh file and perform a sanity check on
#	the Tcl compile flags
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--with-tcl=...
#
#	Defines the following vars:
#		TCL_BIN_DIR	Full path to the directory containing
#				the tclConfig.sh file
#------------------------------------------------------------------------

AC_DEFUN([SC_PATH_TCLCONFIG], [
    #
    # Ok, lets find the tcl configuration
    # First, look for one uninstalled.
    # the alternative search directory is invoked by --with-tcl
    #

    if test x"${no_tcl}" = x ; then
	# we reset no_tcl in case something fails here
	no_tcl=true
	AC_ARG_WITH(tcl,
	    AC_HELP_STRING([--with-tcl],
		[directory containing tcl configuration (tclConfig.sh)]),
	    with_tclconfig="${withval}")
	AC_MSG_CHECKING([for Tcl configuration])
	AC_CACHE_VAL(ac_cv_c_tclconfig,[

	    # First check to see if --with-tcl was specified.
	    if test x"${with_tclconfig}" != x ; then
		case "${with_tclconfig}" in
		    */tclConfig.sh )
			if test -f "${with_tclconfig}"; then
			    AC_MSG_WARN([--with-tcl argument should refer to directory containing tclConfig.sh, not to tclConfig.sh itself])
			    with_tclconfig="`echo "${with_tclconfig}" | sed 's!/tclConfig\.sh$!!'`"
			fi ;;
		esac
		if test -f "${with_tclconfig}/tclConfig.sh" ; then
		    ac_cv_c_tclconfig="`(cd "${with_tclconfig}"; pwd)`"
		else
		    AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
		fi
	    fi

	    # then check for a private Tcl installation
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in \
			../tcl \
			`ls -dr ../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
			`ls -dr ../tcl[[8-9]].[[0-9]] 2>/dev/null` \
			`ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
			../../tcl \
			`ls -dr ../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
			`ls -dr ../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
			`ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \
			../../../tcl \
			`ls -dr ../../../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
			`ls -dr ../../../tcl[[8-9]].[[0-9]] 2>/dev/null` \
			`ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tclConfig.sh" ; then
			ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
			break
		    fi
		done
	    fi

	    # on Darwin, check in Framework installation locations
	    if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tclconfig}" = x ; then
		for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
			`ls -d /Library/Frameworks 2>/dev/null` \
			`ls -d /Network/Library/Frameworks 2>/dev/null` \
			`ls -d /System/Library/Frameworks 2>/dev/null` \
			; do
		    if test -f "$i/Tcl.framework/tclConfig.sh" ; then
			ac_cv_c_tclconfig="`(cd $i/Tcl.framework; pwd)`"
			break
		    fi
		done
	    fi

	    # check in a few common install locations
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in `ls -d ${libdir} 2>/dev/null` \
			`ls -d ${exec_prefix}/lib 2>/dev/null` \
			`ls -d ${prefix}/lib 2>/dev/null` \
			`ls -d /usr/local/lib 2>/dev/null` \
			`ls -d /usr/contrib/lib 2>/dev/null` \
			`ls -d /usr/lib 2>/dev/null` \
			`ls -d /usr/lib64 2>/dev/null` \
			; do
		    if test -f "$i/tclConfig.sh" ; then
			ac_cv_c_tclconfig="`(cd $i; pwd)`"
			break
		    fi
		done
	    fi

	    # check in a few other private locations
	    if test x"${ac_cv_c_tclconfig}" = x ; then
		for i in \
			${srcdir}/../tcl \
			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]] 2>/dev/null` \
			`ls -dr ${srcdir}/../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tclConfig.sh" ; then
		    ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
		    break
		fi
		done
	    fi
	])

	if test x"${ac_cv_c_tclconfig}" = x ; then
	    TCL_BIN_DIR="# no Tcl configs found"
	    AC_MSG_WARN([Can't find Tcl configuration definitions])
	    exit 0
	else
	    no_tcl=
	    TCL_BIN_DIR="${ac_cv_c_tclconfig}"
	    AC_MSG_RESULT([found ${TCL_BIN_DIR}/tclConfig.sh])
	fi
    fi
])

#------------------------------------------------------------------------
# SC_PATH_TKCONFIG --
#
#	Locate the tkConfig.sh file
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--with-tk=...
#
#	Defines the following vars:
#		TK_BIN_DIR	Full path to the directory containing
#				the tkConfig.sh file
#------------------------------------------------------------------------

AC_DEFUN([SC_PATH_TKCONFIG], [
    #
    # Ok, lets find the tk configuration
    # First, look for one uninstalled.
    # the alternative search directory is invoked by --with-tk
    #

    if test x"${no_tk}" = x ; then
	# we reset no_tk in case something fails here
	no_tk=true
	AC_ARG_WITH(tk,
	    AC_HELP_STRING([--with-tk],
		[directory containing tk configuration (tkConfig.sh)]),
	    with_tkconfig="${withval}")
	AC_MSG_CHECKING([for Tk configuration])
	AC_CACHE_VAL(ac_cv_c_tkconfig,[

	    # First check to see if --with-tkconfig was specified.
	    if test x"${with_tkconfig}" != x ; then
		case "${with_tkconfig}" in
		    */tkConfig.sh )
			if test -f "${with_tkconfig}"; then
			    AC_MSG_WARN([--with-tk argument should refer to directory containing tkConfig.sh, not to tkConfig.sh itself])
			    with_tkconfig="`echo "${with_tkconfig}" | sed 's!/tkConfig\.sh$!!'`"
			fi ;;
		esac
		if test -f "${with_tkconfig}/tkConfig.sh" ; then
		    ac_cv_c_tkconfig="`(cd "${with_tkconfig}"; pwd)`"
		else
		    AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
		fi
	    fi

	    # then check for a private Tk library
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in \
			../tk \
			`ls -dr ../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
			`ls -dr ../tk[[8-9]].[[0-9]] 2>/dev/null` \
			`ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
			../../tk \
			`ls -dr ../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
			`ls -dr ../../tk[[8-9]].[[0-9]] 2>/dev/null` \
			`ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
			../../../tk \
			`ls -dr ../../../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
			`ls -dr ../../../tk[[8-9]].[[0-9]] 2>/dev/null` \
			`ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tkConfig.sh" ; then
			ac_cv_c_tkconfig="`(cd $i/unix; pwd)`"
			break
		    fi
		done
	    fi

	    # on Darwin, check in Framework installation locations
	    if test "`uname -s`" = "Darwin" -a x"${ac_cv_c_tkconfig}" = x ; then
		for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
			`ls -d /Library/Frameworks 2>/dev/null` \
			`ls -d /Network/Library/Frameworks 2>/dev/null` \
			`ls -d /System/Library/Frameworks 2>/dev/null` \
			; do
		    if test -f "$i/Tk.framework/tkConfig.sh" ; then
			ac_cv_c_tkconfig="`(cd $i/Tk.framework; pwd)`"
			break
		    fi
		done
	    fi

	    # check in a few common install locations
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in `ls -d ${libdir} 2>/dev/null` \
			`ls -d ${exec_prefix}/lib 2>/dev/null` \
			`ls -d ${prefix}/lib 2>/dev/null` \
			`ls -d /usr/local/lib 2>/dev/null` \
			`ls -d /usr/contrib/lib 2>/dev/null` \
			`ls -d /usr/lib 2>/dev/null` \
			`ls -d /usr/lib64 2>/dev/null` \
			; do
		    if test -f "$i/tkConfig.sh" ; then
			ac_cv_c_tkconfig="`(cd $i; pwd)`"
			break
		    fi
		done
	    fi

	    # check in a few other private locations
	    if test x"${ac_cv_c_tkconfig}" = x ; then
		for i in \
			${srcdir}/../tk \
			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]].[[0-9]]* 2>/dev/null` \
			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]] 2>/dev/null` \
			`ls -dr ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
		    if test -f "$i/unix/tkConfig.sh" ; then
			ac_cv_c_tkconfig="`(cd $i/unix; pwd)`"
			break
		    fi
		done
	    fi
	])

	if test x"${ac_cv_c_tkconfig}" = x ; then
	    TK_BIN_DIR="# no Tk configs found"
	    AC_MSG_WARN([Can't find Tk configuration definitions])
	    exit 0
	else
	    no_tk=
	    TK_BIN_DIR="${ac_cv_c_tkconfig}"
	    AC_MSG_RESULT([found ${TK_BIN_DIR}/tkConfig.sh])
	fi
    fi
])

#------------------------------------------------------------------------
# SC_LOAD_TCLCONFIG --
#
#	Load the tclConfig.sh file
#
# Arguments:
#
#	Requires the following vars to be set:
#		TCL_BIN_DIR
#
# Results:
#
#	Subst the following vars:
#		TCL_BIN_DIR
#		TCL_SRC_DIR
#		TCL_LIB_FILE
#
#------------------------------------------------------------------------

AC_DEFUN([SC_LOAD_TCLCONFIG], [
    AC_MSG_CHECKING([for existence of ${TCL_BIN_DIR}/tclConfig.sh])

    if test -f "${TCL_BIN_DIR}/tclConfig.sh" ; then
        AC_MSG_RESULT([loading])
	. "${TCL_BIN_DIR}/tclConfig.sh"
    else
        AC_MSG_RESULT([could not find ${TCL_BIN_DIR}/tclConfig.sh])
    fi

    # eval is required to do the TCL_DBGX substitution
    eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
    eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""

    # If the TCL_BIN_DIR is the build directory (not the install directory),
    # then set the common variable name to the value of the build variables.
    # For example, the variable TCL_LIB_SPEC will be set to the value
    # of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
    # instead of TCL_BUILD_LIB_SPEC since it will work with both an
    # installed and uninstalled version of Tcl.
    if test -f "${TCL_BIN_DIR}/Makefile" ; then
        TCL_LIB_SPEC="${TCL_BUILD_LIB_SPEC}"
        TCL_STUB_LIB_SPEC="${TCL_BUILD_STUB_LIB_SPEC}"
        TCL_STUB_LIB_PATH="${TCL_BUILD_STUB_LIB_PATH}"
    elif test "`uname -s`" = "Darwin"; then
	# If Tcl was built as a framework, attempt to use the libraries
	# from the framework at the given location so that linking works
	# against Tcl.framework installed in an arbitary location.
	case ${TCL_DEFS} in
	    *TCL_FRAMEWORK*)
		if test -f "${TCL_BIN_DIR}/${TCL_LIB_FILE}"; then
		    for i in "`cd "${TCL_BIN_DIR}"; pwd`" \
			     "`cd "${TCL_BIN_DIR}"/../..; pwd`"; do
			if test "`basename "$i"`" = "${TCL_LIB_FILE}.framework"; then
			    TCL_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TCL_LIB_FILE}"
			    break
			fi
		    done
		fi
		if test -f "${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"; then
		    TCL_STUB_LIB_SPEC="-L`echo "${TCL_BIN_DIR}"  | sed -e 's/ /\\\\ /g'` ${TCL_STUB_LIB_FLAG}"
		    TCL_STUB_LIB_PATH="${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}"
		fi
		;;
	esac
    fi

    # eval is required to do the TCL_DBGX substitution
    eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
    eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
    eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
    eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""

    AC_SUBST(TCL_VERSION)
    AC_SUBST(TCL_PATCH_LEVEL)
    AC_SUBST(TCL_BIN_DIR)
    AC_SUBST(TCL_SRC_DIR)

    AC_SUBST(TCL_LIB_FILE)
    AC_SUBST(TCL_LIB_FLAG)
    AC_SUBST(TCL_LIB_SPEC)

    AC_SUBST(TCL_STUB_LIB_FILE)
    AC_SUBST(TCL_STUB_LIB_FLAG)
    AC_SUBST(TCL_STUB_LIB_SPEC)
])

#------------------------------------------------------------------------
# SC_LOAD_TKCONFIG --
#
#	Load the tkConfig.sh file
#
# Arguments:
#
#	Requires the following vars to be set:
#		TK_BIN_DIR
#
# Results:
#
#	Sets the following vars that should be in tkConfig.sh:
#		TK_BIN_DIR
#------------------------------------------------------------------------

AC_DEFUN([SC_LOAD_TKCONFIG], [
    AC_MSG_CHECKING([for existence of ${TK_BIN_DIR}/tkConfig.sh])

    if test -f "${TK_BIN_DIR}/tkConfig.sh" ; then
        AC_MSG_RESULT([loading])
	. "${TK_BIN_DIR}/tkConfig.sh"
    else
        AC_MSG_RESULT([could not find ${TK_BIN_DIR}/tkConfig.sh])
    fi

    # eval is required to do the TK_DBGX substitution
    eval "TK_LIB_FILE=\"${TK_LIB_FILE}\""
    eval "TK_STUB_LIB_FILE=\"${TK_STUB_LIB_FILE}\""

    # If the TK_BIN_DIR is the build directory (not the install directory),
    # then set the common variable name to the value of the build variables.
    # For example, the variable TK_LIB_SPEC will be set to the value
    # of TK_BUILD_LIB_SPEC. An extension should make use of TK_LIB_SPEC
    # instead of TK_BUILD_LIB_SPEC since it will work with both an
    # installed and uninstalled version of Tcl.
    if test -f "${TK_BIN_DIR}/Makefile" ; then
        TK_LIB_SPEC="${TK_BUILD_LIB_SPEC}"
        TK_STUB_LIB_SPEC="${TK_BUILD_STUB_LIB_SPEC}"
        TK_STUB_LIB_PATH="${TK_BUILD_STUB_LIB_PATH}"
    elif test "`uname -s`" = "Darwin"; then
	# If Tk was built as a framework, attempt to use the libraries
	# from the framework at the given location so that linking works
	# against Tk.framework installed in an arbitary location.
	case ${TK_DEFS} in
	    *TK_FRAMEWORK*)
		if test -f "${TK_BIN_DIR}/${TK_LIB_FILE}"; then
		    for i in "`cd "${TK_BIN_DIR}"; pwd`" \
			     "`cd "${TK_BIN_DIR}"/../..; pwd`"; do
			if test "`basename "$i"`" = "${TK_LIB_FILE}.framework"; then
			    TK_LIB_SPEC="-F`dirname "$i" | sed -e 's/ /\\\\ /g'` -framework ${TK_LIB_FILE}"
			    break
			fi
		    done
		fi
		if test -f "${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"; then
		    TK_STUB_LIB_SPEC="-L` echo "${TK_BIN_DIR}"  | sed -e 's/ /\\\\ /g'` ${TK_STUB_LIB_FLAG}"
		    TK_STUB_LIB_PATH="${TK_BIN_DIR}/${TK_STUB_LIB_FILE}"
		fi
		;;
	esac
    fi

    # eval is required to do the TK_DBGX substitution
    eval "TK_LIB_FLAG=\"${TK_LIB_FLAG}\""
    eval "TK_LIB_SPEC=\"${TK_LIB_SPEC}\""
    eval "TK_STUB_LIB_FLAG=\"${TK_STUB_LIB_FLAG}\""
    eval "TK_STUB_LIB_SPEC=\"${TK_STUB_LIB_SPEC}\""

    AC_SUBST(TK_VERSION)
    AC_SUBST(TK_BIN_DIR)
    AC_SUBST(TK_SRC_DIR)

    AC_SUBST(TK_LIB_FILE)
    AC_SUBST(TK_LIB_FLAG)
    AC_SUBST(TK_LIB_SPEC)

    AC_SUBST(TK_STUB_LIB_FILE)
    AC_SUBST(TK_STUB_LIB_FLAG)
    AC_SUBST(TK_STUB_LIB_SPEC)
])

#------------------------------------------------------------------------
# SC_PROG_TCLSH
#	Locate a tclsh shell installed on the system path. This macro
#	will only find a Tcl shell that already exists on the system.
#	It will not find a Tcl shell in the Tcl build directory or
#	a Tcl shell that has been installed from the Tcl build directory.
#	If a Tcl shell can't be located on the PATH, then TCLSH_PROG will
#	be set to "". Extensions should take care not to create Makefile
#	rules that are run by default and depend on TCLSH_PROG. An
#	extension can't assume that an executable Tcl shell exists at
#	build time.
#
# Arguments
#	none
#
# Results
#	Subst's the following values:
#		TCLSH_PROG
#------------------------------------------------------------------------

AC_DEFUN([SC_PROG_TCLSH], [
    AC_MSG_CHECKING([for tclsh])
    AC_CACHE_VAL(ac_cv_path_tclsh, [
	search_path=`echo ${PATH} | sed -e 's/:/ /g'`
	for dir in $search_path ; do
	    for j in `ls -r $dir/tclsh[[8-9]]* 2> /dev/null` \
		    `ls -r $dir/tclsh* 2> /dev/null` ; do
		if test x"$ac_cv_path_tclsh" = x ; then
		    if test -f "$j" ; then
			ac_cv_path_tclsh=$j
			break
		    fi
		fi
	    done
	done
    ])

    if test -f "$ac_cv_path_tclsh" ; then
	TCLSH_PROG="$ac_cv_path_tclsh"
	AC_MSG_RESULT([$TCLSH_PROG])
    else
	# It is not an error if an installed version of Tcl can't be located.
	TCLSH_PROG=""
	AC_MSG_RESULT([No tclsh found on PATH])
    fi
    AC_SUBST(TCLSH_PROG)
])

#------------------------------------------------------------------------
# SC_BUILD_TCLSH
#	Determine the fully qualified path name of the tclsh executable
#	in the Tcl build directory. This macro will correctly determine
#	the name of the tclsh executable even if tclsh has not yet
#	been built in the build directory. The build tclsh must be used
#	when running tests from an extension build directory. It is not
#	correct to use the TCLSH_PROG in cases like this.
#
# Arguments
#	none
#
# Results
#	Subst's the following values:
#		BUILD_TCLSH
#------------------------------------------------------------------------

AC_DEFUN([SC_BUILD_TCLSH], [
    AC_MSG_CHECKING([for tclsh in Tcl build directory])
    BUILD_TCLSH="${TCL_BIN_DIR}"/tclsh
    AC_MSG_RESULT([$BUILD_TCLSH])
    AC_SUBST(BUILD_TCLSH)
])

#------------------------------------------------------------------------
# SC_ENABLE_SHARED --
#
#	Allows the building of shared libraries
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--enable-shared=yes|no
#
#	Defines the following vars:
#		STATIC_BUILD	Used for building import/export libraries
#				on Windows.
#
#	Sets the following vars:
#		SHARED_BUILD	Value of 1 or 0
#------------------------------------------------------------------------

AC_DEFUN([SC_ENABLE_SHARED], [
    AC_MSG_CHECKING([how to build libraries])
    AC_ARG_ENABLE(shared,
	AC_HELP_STRING([--enable-shared],
	    [build and link with shared libraries (default: on)]),
	[tcl_ok=$enableval], [tcl_ok=yes])

    if test "${enable_shared+set}" = set; then
	enableval="$enable_shared"
	tcl_ok=$enableval
    else
	tcl_ok=yes
    fi

    if test "$tcl_ok" = "yes" ; then
	AC_MSG_RESULT([shared])
	SHARED_BUILD=1
    else
	AC_MSG_RESULT([static])
	SHARED_BUILD=0
	AC_DEFINE(STATIC_BUILD, 1, [Is this a static build?])
    fi
])

#------------------------------------------------------------------------
# SC_ENABLE_FRAMEWORK --
#
#	Allows the building of shared libraries into frameworks
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--enable-framework=yes|no
#
#	Sets the following vars:
#		FRAMEWORK_BUILD	Value of 1 or 0
#------------------------------------------------------------------------

AC_DEFUN([SC_ENABLE_FRAMEWORK], [
    if test "`uname -s`" = "Darwin" ; then
	AC_MSG_CHECKING([how to package libraries])
	AC_ARG_ENABLE(framework,
	    AC_HELP_STRING([--enable-framework],
		[package shared libraries in MacOSX frameworks (default: off)]),
	    [enable_framework=$enableval], [enable_framework=no])
	if test $enable_framework = yes; then
	    if test $SHARED_BUILD = 0; then
		AC_MSG_WARN([Frameworks can only be built if --enable-shared is yes])
		enable_framework=no
	    fi
	    if test $tcl_corefoundation = no; then
		AC_MSG_WARN([Frameworks can only be used when CoreFoundation is available])
		enable_framework=no
	    fi
	fi
	if test $enable_framework = yes; then
	    AC_MSG_RESULT([framework])
	    FRAMEWORK_BUILD=1
	else
	    if test $SHARED_BUILD = 1; then
		AC_MSG_RESULT([shared library])
	    else
		AC_MSG_RESULT([static library])
	    fi
	    FRAMEWORK_BUILD=0
	fi
    fi
])

#------------------------------------------------------------------------
# SC_ENABLE_THREADS --
#
#	Specify if thread support should be enabled
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--enable-threads
#
#	Sets the following vars:
#		THREADS_LIBS	Thread library(s)
#
#	Defines the following vars:
#		TCL_THREADS
#		_REENTRANT
#		_THREAD_SAFE
#
#------------------------------------------------------------------------

AC_DEFUN([SC_ENABLE_THREADS], [
    AC_ARG_ENABLE(threads,
	AC_HELP_STRING([--enable-threads],
	    [build with threads (default: on)]),
	[tcl_ok=$enableval], [tcl_ok=yes])

    if test "${TCL_THREADS}" = 1; then
	tcl_threaded_core=1;
    fi

    if test "$tcl_ok" = "yes" -o "${TCL_THREADS}" = 1; then
	TCL_THREADS=1
	# USE_THREAD_ALLOC tells us to try the special thread-based
	# allocator that significantly reduces lock contention
	AC_DEFINE(USE_THREAD_ALLOC, 1,
	    [Do we want to use the threaded memory allocator?])
	AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
	if test "`uname -s`" = "SunOS" ; then
	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
		    [Do we really want to follow the standard? Yes we do!])
	fi
	AC_DEFINE(_THREAD_SAFE, 1, [Do we want the thread-safe OS API?])
	AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
	if test "$tcl_ok" = "no"; then
	    # Check a little harder for __pthread_mutex_init in the same
	    # library, as some systems hide it there until pthread.h is
	    # defined.  We could alternatively do an AC_TRY_COMPILE with
	    # pthread.h, but that will work with libpthread really doesn't
	    # exist, like AIX 4.2.  [Bug: 4359]
	    AC_CHECK_LIB(pthread, __pthread_mutex_init,
		tcl_ok=yes, tcl_ok=no)
	fi

	if test "$tcl_ok" = "yes"; then
	    # The space is needed
	    THREADS_LIBS=" -lpthread"
	else
	    AC_CHECK_LIB(pthreads, pthread_mutex_init,
		tcl_ok=yes, tcl_ok=no)
	    if test "$tcl_ok" = "yes"; then
		# The space is needed
		THREADS_LIBS=" -lpthreads"
	    else
		AC_CHECK_LIB(c, pthread_mutex_init,
		    tcl_ok=yes, tcl_ok=no)
		if test "$tcl_ok" = "no"; then
		    AC_CHECK_LIB(c_r, pthread_mutex_init,
			tcl_ok=yes, tcl_ok=no)
		    if test "$tcl_ok" = "yes"; then
			# The space is needed
			THREADS_LIBS=" -pthread"
		    else
			TCL_THREADS=0
			AC_MSG_WARN([Don't know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...])
		    fi
		fi
	    fi
	fi

	# Does the pthread-implementation provide
	# 'pthread_attr_setstacksize' ?
	AC_CHECK_FUNCS(pthread_attr_setstacksize)
    else
	TCL_THREADS=0
    fi
    # Do checking message here to not mess up interleaved configure output
    AC_MSG_CHECKING([for building with threads])
    if test "${TCL_THREADS}" = 1; then
	AC_DEFINE(TCL_THREADS, 1, [Are we building with threads enabled?])
	if test "${tcl_threaded_core}" = 1; then
	    AC_MSG_RESULT([yes (threaded core)])
	else
	    AC_MSG_RESULT([yes])
	fi
    else
	AC_MSG_RESULT([no])
    fi

    AC_SUBST(TCL_THREADS)
])

#------------------------------------------------------------------------
# SC_ENABLE_SYMBOLS --
#
#	Specify if debugging symbols should be used.
#	Memory (TCL_MEM_DEBUG) and compile (TCL_COMPILE_DEBUG) debugging
#	can also be enabled.
#
# Arguments:
#	none
#
#	Requires the following vars to be set in the Makefile:
#		CFLAGS_DEBUG
#		CFLAGS_OPTIMIZE
#		LDFLAGS_DEBUG
#		LDFLAGS_OPTIMIZE
#
# Results:
#
#	Adds the following arguments to configure:
#		--enable-symbols
#
#	Defines the following vars:
#		CFLAGS_DEFAULT	Sets to $(CFLAGS_DEBUG) if true
#				Sets to $(CFLAGS_OPTIMIZE) if false
#		LDFLAGS_DEFAULT	Sets to $(LDFLAGS_DEBUG) if true
#				Sets to $(LDFLAGS_OPTIMIZE) if false
#		DBGX		Formerly used as debug library extension;
#				always blank now.
#
#------------------------------------------------------------------------

AC_DEFUN([SC_ENABLE_SYMBOLS], [
    AC_MSG_CHECKING([for build with symbols])
    AC_ARG_ENABLE(symbols,
	AC_HELP_STRING([--enable-symbols],
	    [build with debugging symbols (default: off)]),
	[tcl_ok=$enableval], [tcl_ok=no])
# FIXME: Currently, LDFLAGS_DEFAULT is not used, it should work like CFLAGS_DEFAULT.
    DBGX=""
    if test "$tcl_ok" = "no"; then
	CFLAGS_DEFAULT='$(CFLAGS_OPTIMIZE)'
	LDFLAGS_DEFAULT='$(LDFLAGS_OPTIMIZE)'
	AC_MSG_RESULT([no])
	AC_DEFINE(TCL_CFG_OPTIMIZED, 1, [Is this an optimized build?])
    else
	CFLAGS_DEFAULT='$(CFLAGS_DEBUG)'
	LDFLAGS_DEFAULT='$(LDFLAGS_DEBUG)'
	if test "$tcl_ok" = "yes"; then
	    AC_MSG_RESULT([yes (standard debugging)])
	fi
    fi
    AC_SUBST(CFLAGS_DEFAULT)
    AC_SUBST(LDFLAGS_DEFAULT)
    ### FIXME: Surely TCL_CFG_DEBUG should be set to whether we're debugging?
    AC_DEFINE(TCL_CFG_DEBUG, 1, [Is debugging enabled?])

    if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then
	AC_DEFINE(TCL_MEM_DEBUG, 1, [Is memory debugging enabled?])
    fi

    ifelse($1,bccdebug,dnl Only enable 'compile' for the Tcl core itself
	if test "$tcl_ok" = "compile" -o "$tcl_ok" = "all"; then
	    AC_DEFINE(TCL_COMPILE_DEBUG, 1, [Is bytecode debugging enabled?])
	    AC_DEFINE(TCL_COMPILE_STATS, 1, [Are bytecode statistics enabled?])
	fi)

    if test "$tcl_ok" != "yes" -a "$tcl_ok" != "no"; then
	if test "$tcl_ok" = "all"; then
	    AC_MSG_RESULT([enabled symbols mem ]ifelse($1,bccdebug,[compile ])[debugging])
	else
	    AC_MSG_RESULT([enabled $tcl_ok debugging])
	fi
    fi
])

#------------------------------------------------------------------------
# SC_ENABLE_LANGINFO --
#
#	Allows use of modern nl_langinfo check for better l10n.
#	This is only relevant for Unix.
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--enable-langinfo=yes|no (default is yes)
#
#	Defines the following vars:
#		HAVE_LANGINFO	Triggers use of nl_langinfo if defined.
#
#------------------------------------------------------------------------

AC_DEFUN([SC_ENABLE_LANGINFO], [
    AC_ARG_ENABLE(langinfo,
	AC_HELP_STRING([--enable-langinfo],
	    [use nl_langinfo if possible to determine encoding at startup, otherwise use old heuristic (default: on)]),
	[langinfo_ok=$enableval], [langinfo_ok=yes])

    HAVE_LANGINFO=0
    if test "$langinfo_ok" = "yes"; then
	AC_CHECK_HEADER(langinfo.h,[langinfo_ok=yes],[langinfo_ok=no])
    fi
    AC_MSG_CHECKING([whether to use nl_langinfo])
    if test "$langinfo_ok" = "yes"; then
	AC_CACHE_VAL(tcl_cv_langinfo_h, [
	    AC_TRY_COMPILE([#include <langinfo.h>], [nl_langinfo(CODESET);],
		    [tcl_cv_langinfo_h=yes],[tcl_cv_langinfo_h=no])])
	AC_MSG_RESULT([$tcl_cv_langinfo_h])
	if test $tcl_cv_langinfo_h = yes; then
	    AC_DEFINE(HAVE_LANGINFO, 1, [Do we have nl_langinfo()?])
	fi
    else
	AC_MSG_RESULT([$langinfo_ok])
    fi
])

#--------------------------------------------------------------------
# SC_CONFIG_MANPAGES
#
#	Decide whether to use symlinks for linking the manpages,
#	whether to compress the manpages after installation, and
#	whether to add a package name suffix to the installed
#	manpages to avoidfile name clashes.
#	If compression is enabled also find out what file name suffix
#	the given compression program is using.
#
# Arguments:
#	none
#
# Results:
#
#	Adds the following arguments to configure:
#		--enable-man-symlinks
#		--enable-man-compression=PROG
#		--enable-man-suffix[=STRING]
#
#	Defines the following variable:
#
#	MAN_FLAGS -	The apropriate flags for installManPage
#			according to the user's selection.
#
#--------------------------------------------------------------------

AC_DEFUN([SC_CONFIG_MANPAGES], [
    AC_MSG_CHECKING([whether to use symlinks for manpages])
    AC_ARG_ENABLE(man-symlinks,
	AC_HELP_STRING([--enable-man-symlinks],
	    [use symlinks for the manpages (default: off)]),
	test "$enableval" != "no" && MAN_FLAGS="$MAN_FLAGS --symlinks",
	enableval="no")
    AC_MSG_RESULT([$enableval])

    AC_MSG_CHECKING([whether to compress the manpages])
    AC_ARG_ENABLE(man-compression,
	AC_HELP_STRING([--enable-man-compression=PROG],
	    [compress the manpages with PROG (default: off)]),
	[case $enableval in
	    yes) AC_MSG_ERROR([missing argument to --enable-man-compression]);;
	    no)  ;;
	    *)   MAN_FLAGS="$MAN_FLAGS --compress $enableval";;
	esac],
	enableval="no")
    AC_MSG_RESULT([$enableval])
    if test "$enableval" != "no"; then
	AC_MSG_CHECKING([for compressed file suffix])
	touch TeST
	$enableval TeST
	Z=`ls TeST* | sed 's/^....//'`
	rm -f TeST*
	MAN_FLAGS="$MAN_FLAGS --extension $Z"
	AC_MSG_RESULT([$Z])
    fi

    AC_MSG_CHECKING([whether to add a package name suffix for the manpages])
    AC_ARG_ENABLE(man-suffix,
	AC_HELP_STRING([--enable-man-suffix=STRING],
	    [use STRING as a suffix to manpage file names (default: no, AC_PACKAGE_NAME if enabled without specifying STRING)]),
	[case $enableval in
	    yes) enableval="AC_PACKAGE_NAME" MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
	    no)  ;;
	    *)   MAN_FLAGS="$MAN_FLAGS --suffix $enableval";;
	esac],
	enableval="no")
    AC_MSG_RESULT([$enableval])

    AC_SUBST(MAN_FLAGS)
])

#--------------------------------------------------------------------
# SC_CONFIG_SYSTEM
#
#	Determine what the system is (some things cannot be easily checked
#	on a feature-driven basis, alas). This can usually be done via the
#	"uname" command, but there are a few systems, like Next, where
#	this doesn't work.
#
# Arguments:
#	none
#
# Results:
#	Defines the following var:
#
#	system -	System/platform/version identification code.
#
#--------------------------------------------------------------------

AC_DEFUN([SC_CONFIG_SYSTEM], [
    AC_CACHE_CHECK([system version], tcl_cv_sys_version, [
	if test -f /usr/lib/NextStep/software_version; then
	    tcl_cv_sys_version=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
	else
	    tcl_cv_sys_version=`uname -s`-`uname -r`
	    if test "$?" -ne 0 ; then
		AC_MSG_WARN([can't find uname command])
		tcl_cv_sys_version=unknown
	    else
		# Special check for weird MP-RAS system (uname returns weird
		# results, and the version is kept in special file).

		if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
		    tcl_cv_sys_version=MP-RAS-`awk '{print $[3]}' /etc/.relid`
		fi
		if test "`uname -s`" = "AIX" ; then
		    tcl_cv_sys_version=AIX-`uname -v`.`uname -r`
		fi
	    fi
	fi
    ])
    system=$tcl_cv_sys_version
])

#--------------------------------------------------------------------
# SC_CONFIG_CFLAGS
#
#	Try to determine the proper flags to pass to the compiler
#	for building shared libraries and other such nonsense.
#
# Arguments:
#	none
#
# Results:
#
#	Defines and substitutes the following vars:
#
#       DL_OBJS -       Name of the object file that implements dynamic
#                       loading for Tcl on this system.
#       DL_LIBS -       Library file(s) to include in tclsh and other base
#                       applications in order for the "load" command to work.
#       LDFLAGS -      Flags to pass to the compiler when linking object
#                       files into an executable application binary such
#                       as tclsh.
#       LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib",
#                       that tell the run-time dynamic linker where to look
#                       for shared libraries such as libtcl.so.  Depends on
#                       the variable LIB_RUNTIME_DIR in the Makefile. Could
#                       be the same as CC_SEARCH_FLAGS if ${CC} is used to link.
#       CC_SEARCH_FLAGS-Flags to pass to ${CC}, such as "-Wl,-rpath,/usr/local/tcl/lib",
#                       that tell the run-time dynamic linker where to look
#                       for shared libraries such as libtcl.so.  Depends on
#                       the variable LIB_RUNTIME_DIR in the Makefile.
#       MAKE_LIB -      Command to execute to build the a library;
#                       differs when building shared or static.
#       MAKE_STUB_LIB -
#                       Command to execute to build a stub library.
#       INSTALL_LIB -   Command to execute to install a library;
#                       differs when building shared or static.
#       INSTALL_STUB_LIB -
#                       Command to execute to install a stub library.
#       STLIB_LD -      Base command to use for combining object files
#                       into a static library.
#       SHLIB_CFLAGS -  Flags to pass to cc when compiling the components
#                       of a shared library (may request position-independent
#                       code, among other things).
#       SHLIB_LD -      Base command to use for combining object files
#                       into a shared library.
#       SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
#                       creating shared libraries.  This symbol typically
#                       goes at the end of the "ld" commands that build
#                       shared libraries. The value of the symbol is
#                       "${LIBS}" if all of the dependent libraries should
#                       be specified when creating a shared library.  If
#                       dependent libraries should not be specified (as on
#                       SunOS 4.x, where they cause the link to fail, or in
#                       general if Tcl and Tk aren't themselves shared
#                       libraries), then this symbol has an empty string
#                       as its value.
#       SHLIB_SUFFIX -  Suffix to use for the names of dynamically loadable
#                       extensions.  An empty string means we don't know how
#                       to use shared libraries on this platform.
# TCL_SHLIB_LD_EXTRAS - Additional element which are added to SHLIB_LD_LIBS
#  TK_SHLIB_LD_EXTRAS   for the build of Tcl and Tk, but not recorded in the
#                       tclConfig.sh, since they are only used for the build
#                       of Tcl and Tk.
#                       Examples: MacOS X records the library version and
#                       compatibility version in the shared library.  But
#                       of course the Tcl version of this is only used for Tcl.
#       LIB_SUFFIX -    Specifies everything that comes after the "libfoo"
#                       in a static or shared library name, using the $VERSION variable
#                       to put the version in the right place.  This is used
#                       by platforms that need non-standard library names.
#                       Examples:  ${VERSION}.so.1.1 on NetBSD, since it needs
#                       to have a version after the .so, and ${VERSION}.a
#                       on AIX, since a shared library needs to have
#                       a .a extension whereas shared objects for loadable
#                       extensions have a .so extension.  Defaults to
#                       ${VERSION}${SHLIB_SUFFIX}.
#       TCL_LIBS -
#                       Libs to use when linking Tcl shell or some other
#                       shell that includes Tcl libs.
#	CFLAGS_DEBUG -
#			Flags used when running the compiler in debug mode
#	CFLAGS_OPTIMIZE -
#			Flags used when running the compiler in optimize mode
#	CFLAGS -	Additional CFLAGS added as necessary (usually 64-bit)
#
#--------------------------------------------------------------------

AC_DEFUN([SC_CONFIG_CFLAGS], [

    # Step 0.a: Enable 64 bit support?

    AC_MSG_CHECKING([if 64bit support is requested])
    AC_ARG_ENABLE(64bit,
	AC_HELP_STRING([--enable-64bit],
	    [enable 64bit support (default: off)]),
	[do64bit=$enableval], [do64bit=no])
    AC_MSG_RESULT([$do64bit])

    # Step 0.b: Enable Solaris 64 bit VIS support?

    AC_MSG_CHECKING([if 64bit Sparc VIS support is requested])
    AC_ARG_ENABLE(64bit-vis,
	AC_HELP_STRING([--enable-64bit-vis],
	    [enable 64bit Sparc VIS support (default: off)]),
	[do64bitVIS=$enableval], [do64bitVIS=no])
    AC_MSG_RESULT([$do64bitVIS])
    # Force 64bit on with VIS
    AS_IF([test "$do64bitVIS" = "yes"], [do64bit=yes])

    # Step 0.c: Check if visibility support is available. Do this here so
    # that platform specific alternatives can be used below if this fails.

    AC_CACHE_CHECK([if compiler supports visibility "hidden"],
	tcl_cv_cc_visibility_hidden, [
	    AS_IF([test "$GCC" = yes], [
		hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -fvisibility=hidden -Werror"
		AC_TRY_COMPILE(,, tcl_cv_cc_visibility_hidden=yes,
		    tcl_cv_cc_visibility_hidden=no)
		CFLAGS=$hold_cflags
	    ], [
		tcl_cv_cc_visibility_hidden=no
	    ])
    ])
    AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
	CFLAGS="$CFLAGS -fvisibility=hidden"
    ], [
	AC_DEFINE(NO_VIZ, [], [No visibility attribute])
	hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
	AC_TRY_LINK([
	    extern __attribute__((__visibility__("hidden"))) void f(void);
	    void f(void) {}], [f();], tcl_cv_cc_visibility_hidden=yes,
	    tcl_cv_cc_visibility_hidden=no)
	CFLAGS=$hold_cflags
	AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
	    AC_DEFINE(MODULE_SCOPE,
		[extern __attribute__((__visibility__("hidden")))],
		[Compiler support for module scope symbols])
	])
    ])

    # Step 0.d: Disable -rpath support?

    AC_MSG_CHECKING([if rpath support is requested])
    AC_ARG_ENABLE(rpath,
	AC_HELP_STRING([--disable-rpath],
	    [disable rpath support (default: on)]),
	[doRpath=$enableval], [doRpath=yes])
    AC_MSG_RESULT([$doRpath])

    # Step 1: set the variable "system" to hold the name and version number
    # for the system.

    SC_CONFIG_SYSTEM

    # Step 2: check for existence of -ldl library.  This is needed because
    # Linux can use either -ldl or -ldld for dynamic loading.

    AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)

    # Require ranlib early so we can override it in special cases below.

    AC_REQUIRE([AC_PROG_RANLIB])

    # Step 3: set configuration options based on system name and version.

    do64bit_ok=no
    # default to '{$LIBS}' and set to "" on per-platform necessary basis
    SHLIB_LD_LIBS='${LIBS}'
    LDFLAGS_ORIG="$LDFLAGS"
    # When ld needs options to work in 64-bit mode, put them in
    # LDFLAGS_ARCH so they eventually end up in LDFLAGS even if [load]
    # is disabled by the user. [Bug 1016796]
    LDFLAGS_ARCH=""
    UNSHARED_LIB_SUFFIX=""
    TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`'
    ECHO_VERSION='`echo ${VERSION}`'
    TCL_LIB_VERSIONS_OK=ok
    CFLAGS_DEBUG=-g
    AS_IF([test "$GCC" = yes], [
	CFLAGS_OPTIMIZE=-O2
	CFLAGS_WARNING="-Wall"
    ], [
	CFLAGS_OPTIMIZE=-O
	CFLAGS_WARNING=""
    ])
    AC_CHECK_TOOL(AR, ar)
    STLIB_LD='${AR} cr'
    LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH"
    PLAT_OBJS=""
    PLAT_SRCS=""
    LDAIX_SRC=""
    AS_IF([test x"${SHLIB_VERSION}" = x], [SHLIB_VERSION="1.0"])
    case $system in
	AIX-*)
	    AS_IF([test "${TCL_THREADS}" = "1" -a "$GCC" != "yes"], [
		# AIX requires the _r compiler when gcc isn't being used
		case "${CC}" in
		    *_r|*_r\ *)
			# ok ...
			;;
		    *)
			# Make sure only first arg gets _r
		    	CC=`echo "$CC" | sed -e 's/^\([[^ ]]*\)/\1_r/'`
			;;
		esac
		AC_MSG_RESULT([Using $CC for compiling with threads])
	    ])
	    LIBS="$LIBS -lc"
	    SHLIB_CFLAGS=""
	    SHLIB_SUFFIX=".so"

	    DL_OBJS="tclLoadDl.o"
	    LD_LIBRARY_PATH_VAR="LIBPATH"

	    # ldAix No longer needed with use of -bexpall/-brtl
	    # but some extensions may still reference it
	    LDAIX_SRC='$(UNIX_DIR)/ldAix'

	    # Check to enable 64-bit flags for compiler/linker
	    AS_IF([test "$do64bit" = yes], [
		AS_IF([test "$GCC" = yes], [
		    AC_MSG_WARN([64bit mode not supported with GCC on $system])
		], [
		    do64bit_ok=yes
		    CFLAGS="$CFLAGS -q64"
		    LDFLAGS_ARCH="-q64"
		    RANLIB="${RANLIB} -X64"
		    AR="${AR} -X64"
		    SHLIB_LD_FLAGS="-b64"
		])
	    ])

	    AS_IF([test "`uname -m`" = ia64], [
		# AIX-5 uses ELF style dynamic libraries on IA-64, but not PPC
		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
		# AIX-5 has dl* in libc.so
		DL_LIBS=""
		AS_IF([test "$GCC" = yes], [
		    CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
		], [
		    CC_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
		])
		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
	    ], [
		AS_IF([test "$GCC" = yes], [
		    SHLIB_LD='${CC} -shared -Wl,-bexpall'
		], [
		    SHLIB_LD="/bin/ld -bhalt:4 -bM:SRE -bexpall -H512 -T512 -bnoentry"
		    LDFLAGS="$LDFLAGS -brtl"
		])
		SHLIB_LD="${SHLIB_LD} ${SHLIB_LD_FLAGS}"
		DL_LIBS="-ldl"
		CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	    ])
	    ;;
	BeOS*)
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_LD='${CC} -nostart'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"

	    #-----------------------------------------------------------
	    # Check for inet_ntoa in -lbind, for BeOS (which also needs
	    # -lsocket, even if the network functions are in -lnet which
	    # is always linked to, for compatibility.
	    #-----------------------------------------------------------
	    AC_CHECK_LIB(bind, inet_ntoa, [LIBS="$LIBS -lbind -lsocket"])
	    ;;
	BSD/OS-2.1*|BSD/OS-3*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="shlicc -r"
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	BSD/OS-4.*)
	    SHLIB_CFLAGS="-export-dynamic -fPIC"
	    SHLIB_LD='${CC} -shared'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS="$LDFLAGS -export-dynamic"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	CYGWIN_*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD='${CC} -shared'
	    SHLIB_SUFFIX=".dll"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	dgux*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD='${CC} -G'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	Haiku*)
	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_SUFFIX=".so"
	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-lroot"
	    AC_CHECK_LIB(network, inet_ntoa, [LIBS="$LIBS -lnetwork"])
	    ;;
	HP-UX-*.11.*)
	    # Use updated header definitions where possible
	    AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, [Do we want to use the XOPEN network library?])
	    AC_DEFINE(_XOPEN_SOURCE, 1, [Do we want to use the XOPEN network library?])
	    LIBS="$LIBS -lxnet"               # Use the XOPEN network library

	    AS_IF([test "`uname -m`" = ia64], [
		SHLIB_SUFFIX=".so"
	    ], [
		SHLIB_SUFFIX=".sl"
	    ])
	    AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
	    AS_IF([test "$tcl_ok" = yes], [
		SHLIB_CFLAGS="+z"
		SHLIB_LD="ld -b"
		DL_OBJS="tclLoadShl.o"
		DL_LIBS="-ldld"
		LDFLAGS="$LDFLAGS -Wl,-E"
		CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
		LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
		LD_LIBRARY_PATH_VAR="SHLIB_PATH"
	    ])
	    AS_IF([test "$GCC" = yes], [
		SHLIB_LD='${CC} -shared'
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	    ], [
		CFLAGS="$CFLAGS -z"
	    ])

	    # Users may want PA-RISC 1.1/2.0 portable code - needs HP cc
	    #CFLAGS="$CFLAGS +DAportable"

	    # Check to enable 64-bit flags for compiler/linker
	    AS_IF([test "$do64bit" = "yes"], [
		AS_IF([test "$GCC" = yes], [
		    case `${CC} -dumpmachine` in
			hppa64*)
			    # 64-bit gcc in use.  Fix flags for GNU ld.
			    do64bit_ok=yes
			    SHLIB_LD='${CC} -shared'
			    AS_IF([test $doRpath = yes], [
				CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
			    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
			    ;;
			*)
			    AC_MSG_WARN([64bit mode not supported with GCC on $system])
			    ;;
		    esac
		], [
		    do64bit_ok=yes
		    CFLAGS="$CFLAGS +DD64"
		    LDFLAGS_ARCH="+DD64"
		])
	    ]) ;;
	HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*)
	    SHLIB_SUFFIX=".sl"
	    AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
	    AS_IF([test "$tcl_ok" = yes], [
		SHLIB_CFLAGS="+z"
		SHLIB_LD="ld -b"
		SHLIB_LD_LIBS=""
		DL_OBJS="tclLoadShl.o"
		DL_LIBS="-ldld"
		LDFLAGS="$LDFLAGS -Wl,-E"
		CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
		LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
		LD_LIBRARY_PATH_VAR="SHLIB_PATH"
	    ]) ;;
	IRIX-5.*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="ld -shared -rdata_shared"
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    AC_LIBOBJ(mkstemp)
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
	    ;;
	IRIX-6.*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="ld -n32 -shared -rdata_shared"
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    AC_LIBOBJ(mkstemp)
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
	    AS_IF([test "$GCC" = yes], [
		CFLAGS="$CFLAGS -mabi=n32"
		LDFLAGS="$LDFLAGS -mabi=n32"
	    ], [
		case $system in
		    IRIX-6.3)
			# Use to build 6.2 compatible binaries on 6.3.
			CFLAGS="$CFLAGS -n32 -D_OLD_TERMIOS"
			;;
		    *)
			CFLAGS="$CFLAGS -n32"
			;;
		esac
		LDFLAGS="$LDFLAGS -n32"
	    ])
	    ;;
	IRIX64-6.*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD="ld -n32 -shared -rdata_shared"
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    AC_LIBOBJ(mkstemp)
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])

	    # Check to enable 64-bit flags for compiler/linker

	    AS_IF([test "$do64bit" = yes], [
	        AS_IF([test "$GCC" = yes], [
	            AC_MSG_WARN([64bit mode not supported by gcc])
	        ], [
	            do64bit_ok=yes
	            SHLIB_LD="ld -64 -shared -rdata_shared"
	            CFLAGS="$CFLAGS -64"
	            LDFLAGS_ARCH="-64"
	        ])
	    ])
	    ;;
	Linux*)
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_SUFFIX=".so"

	    CFLAGS_OPTIMIZE="-O2"
	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings
	    # when you inline the string and math operations.  Turn this off to
	    # get rid of the warnings.
	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"

	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	    AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
	    AS_IF([test $do64bit = yes], [
		AC_CACHE_CHECK([if compiler accepts -m64 flag], tcl_cv_cc_m64, [
		    hold_cflags=$CFLAGS
		    CFLAGS="$CFLAGS -m64"
		    AC_TRY_LINK(,, tcl_cv_cc_m64=yes, tcl_cv_cc_m64=no)
		    CFLAGS=$hold_cflags])
		AS_IF([test $tcl_cv_cc_m64 = yes], [
		    CFLAGS="$CFLAGS -m64"
		    do64bit_ok=yes
		])
	   ])

	    # The combo of gcc + glibc has a bug related to inlining of
	    # functions like strtod(). The -fno-builtin flag should address
	    # this problem but it does not work. The -fno-inline flag is kind
	    # of overkill but it works. Disable inlining only when one of the
	    # files in compat/*.c is being linked in.

	    AS_IF([test x"${USE_COMPAT}" != x],[CFLAGS="$CFLAGS -fno-inline"])
	    ;;
	GNU*)
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_SUFFIX=".so"

	    SHLIB_LD='${CC} -shared'
	    DL_OBJS=""
	    DL_LIBS="-ldl"
	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
	    ;;
	Lynx*)
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_SUFFIX=".so"
	    CFLAGS_OPTIMIZE=-02
	    SHLIB_LD='${CC} -shared'
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-mshared -ldl"
	    LD_FLAGS="-Wl,--export-dynamic"
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
	    ;;
	MP-RAS-02*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD='${CC} -G'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	MP-RAS-*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD='${CC} -G'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    LDFLAGS="$LDFLAGS -Wl,-Bexport"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	NetBSD-1.*|FreeBSD-[[1-2]].*)
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_LD="ld -Bshareable -x"
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
	    AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
		AC_EGREP_CPP(yes, [
#ifdef __ELF__
	yes
#endif
		], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
	    AS_IF([test $tcl_cv_ld_elf = yes], [
		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
	    ], [
		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
	    ])

	    # Ancient FreeBSD doesn't handle version numbers with dots.

	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	OpenBSD-*)
	    arch=`arch -s`
	    case "$arch" in
	    m88k|vax)
		# Equivalent using configure option --disable-load
		# Step 4 will set the necessary variables
		DL_OBJS=""
		SHLIB_LD_LIBS=""
		;;
	    *)
		SHLIB_CFLAGS="-fPIC"
		SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
		SHLIB_SUFFIX=".so"
		DL_OBJS="tclLoadDl.o"
		DL_LIBS=""
		AS_IF([test $doRpath = yes], [
		    CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
		;;
	    esac
	    case "$arch" in
	    m88k|vax)
		CFLAGS_OPTIMIZE="-O1"
		;;
	    sh)
		CFLAGS_OPTIMIZE="-O0"
		;;
	    *)
		CFLAGS_OPTIMIZE="-O2"
		;;
	    esac
	    AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
		AC_EGREP_CPP(yes, [
#ifdef __ELF__
	yes
#endif
		], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
	    AS_IF([test $tcl_cv_ld_elf = yes], [
		LDFLAGS=-Wl,-export-dynamic
	    ], [LDFLAGS=""])
	    AS_IF([test "${TCL_THREADS}" = "1"], [
		# On OpenBSD:	Compile with -pthread
		#		Don't link with -lpthread
		LIBS=`echo $LIBS | sed s/-lpthread//`
		CFLAGS="$CFLAGS -pthread"
	    ])
	    # OpenBSD doesn't do version numbers with dots.
	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	NetBSD-*|FreeBSD-[[3-4]].*)
	    # FreeBSD 3.* and greater have ELF.
	    # NetBSD 2.* has ELF and can use 'cc -shared' to build shared libs
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS="$LDFLAGS -export-dynamic"
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	    AS_IF([test "${TCL_THREADS}" = "1"], [
		# The -pthread needs to go in the CFLAGS, not LIBS
		LIBS=`echo $LIBS | sed s/-pthread//`
		CFLAGS="$CFLAGS -pthread"
	    	LDFLAGS="$LDFLAGS -pthread"
	    ])
	    case $system in
	    FreeBSD-3.*)
	    	# FreeBSD-3 doesn't handle version numbers with dots.
	    	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
	    	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
	    	TCL_LIB_VERSIONS_OK=nodots
		;;
	    esac
	    ;;
	FreeBSD-*)
	    # This configuration from FreeBSD Ports.
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_LD="${CC} -shared"
	    TCL_SHLIB_LD_EXTRAS="-soname \$[@]"
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    LDFLAGS=""
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
	    AS_IF([test "${TCL_THREADS}" = "1"], [
		# The -pthread needs to go in the LDFLAGS, not LIBS
		LIBS=`echo $LIBS | sed s/-pthread//`
		CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
		LDFLAGS="$LDFLAGS $PTHREAD_LIBS"])
	    # Version numbers are dot-stripped by system policy.
	    TCL_TRIM_DOTS=`echo ${VERSION} | tr -d .`
	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	Darwin-*)
	    CFLAGS_OPTIMIZE="-Os"
	    SHLIB_CFLAGS="-fno-common"
	    # To avoid discrepancies between what headers configure sees during
	    # preprocessing tests and compiling tests, move any -isysroot and
	    # -mmacosx-version-min flags from CFLAGS to CPPFLAGS:
	    CPPFLAGS="${CPPFLAGS} `echo " ${CFLAGS}" | \
		awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
		if ([$]i~/^(isysroot|mmacosx-version-min)/) print "-"[$]i}'`"
	    CFLAGS="`echo " ${CFLAGS}" | \
		awk 'BEGIN {FS=" +-";ORS=" "}; {for (i=2;i<=NF;i++) \
		if (!([$]i~/^(isysroot|mmacosx-version-min)/)) print "-"[$]i}'`"
	    AS_IF([test $do64bit = yes], [
		case `arch` in
		    ppc)
			AC_CACHE_CHECK([if compiler accepts -arch ppc64 flag],
				tcl_cv_cc_arch_ppc64, [
			    hold_cflags=$CFLAGS
			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
			    AC_TRY_LINK(,, tcl_cv_cc_arch_ppc64=yes,
				    tcl_cv_cc_arch_ppc64=no)
			    CFLAGS=$hold_cflags])
			AS_IF([test $tcl_cv_cc_arch_ppc64 = yes], [
			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
			    do64bit_ok=yes
			]);;
		    i386)
			AC_CACHE_CHECK([if compiler accepts -arch x86_64 flag],
				tcl_cv_cc_arch_x86_64, [
			    hold_cflags=$CFLAGS
			    CFLAGS="$CFLAGS -arch x86_64"
			    AC_TRY_LINK(,, tcl_cv_cc_arch_x86_64=yes,
				    tcl_cv_cc_arch_x86_64=no)
			    CFLAGS=$hold_cflags])
			AS_IF([test $tcl_cv_cc_arch_x86_64 = yes], [
			    CFLAGS="$CFLAGS -arch x86_64"
			    do64bit_ok=yes
			]);;
		    *)
			AC_MSG_WARN([Don't know how enable 64-bit on architecture `arch`]);;
		esac
	    ], [
		# Check for combined 32-bit and 64-bit fat build
		AS_IF([echo "$CFLAGS " |grep -E -q -- '-arch (ppc64|x86_64) ' \
		    && echo "$CFLAGS " |grep -E -q -- '-arch (ppc|i386) '], [
		    fat_32_64=yes])
	    ])
	    SHLIB_LD='${CC} -dynamiclib ${CFLAGS} ${LDFLAGS}'
	    AC_CACHE_CHECK([if ld accepts -single_module flag], tcl_cv_ld_single_module, [
		hold_ldflags=$LDFLAGS
		LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
		AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
		LDFLAGS=$hold_ldflags])
	    AS_IF([test $tcl_cv_ld_single_module = yes], [
		SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
	    ])
	    SHLIB_SUFFIX=".dylib"
	    DL_OBJS="tclLoadDyld.o"
	    DL_LIBS=""
	    # Don't use -prebind when building for Mac OS X 10.4 or later only:
	    AS_IF([test "`echo "${MACOSX_DEPLOYMENT_TARGET}" | awk -F '10\\.' '{print int([$]2)}'`" -lt 4 -a \
		"`echo "${CPPFLAGS}" | awk -F '-mmacosx-version-min=10\\.' '{print int([$]2)}'`" -lt 4], [
		LDFLAGS="$LDFLAGS -prebind"])
	    LDFLAGS="$LDFLAGS -headerpad_max_install_names"
	    AC_CACHE_CHECK([if ld accepts -search_paths_first flag],
		    tcl_cv_ld_search_paths_first, [
		hold_ldflags=$LDFLAGS
		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
		AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes,
			tcl_cv_ld_search_paths_first=no)
		LDFLAGS=$hold_ldflags])
	    AS_IF([test $tcl_cv_ld_search_paths_first = yes], [
		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
	    ])
	    AS_IF([test "$tcl_cv_cc_visibility_hidden" != yes], [
		AC_DEFINE(MODULE_SCOPE, [__private_extern__],
		    [Compiler support for module scope symbols])
	    ])
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    LD_LIBRARY_PATH_VAR="DYLD_LIBRARY_PATH"
	    AC_DEFINE(MAC_OSX_TCL, 1, [Is this a Mac I see before me?])
	    PLAT_OBJS='${MAC_OSX_OBJS}'
	    PLAT_SRCS='${MAC_OSX_SRCS}'
	    AC_MSG_CHECKING([whether to use CoreFoundation])
	    AC_ARG_ENABLE(corefoundation,
		AC_HELP_STRING([--enable-corefoundation],
		    [use CoreFoundation API on MacOSX (default: on)]),
		[tcl_corefoundation=$enableval], [tcl_corefoundation=yes])
	    AC_MSG_RESULT([$tcl_corefoundation])
	    AS_IF([test $tcl_corefoundation = yes], [
		AC_CACHE_CHECK([for CoreFoundation.framework],
			tcl_cv_lib_corefoundation, [
		    hold_libs=$LIBS
		    AS_IF([test "$fat_32_64" = yes], [
			for v in CFLAGS CPPFLAGS LDFLAGS; do
			    # On Tiger there is no 64-bit CF, so remove 64-bit
			    # archs from CFLAGS et al. while testing for
			    # presence of CF. 64-bit CF is disabled in
			    # tclUnixPort.h if necessary.
			    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'
			done])
		    LIBS="$LIBS -framework CoreFoundation"
		    AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
			[CFBundleRef b = CFBundleGetMainBundle();],
			tcl_cv_lib_corefoundation=yes,
			tcl_cv_lib_corefoundation=no)
		    AS_IF([test "$fat_32_64" = yes], [
			for v in CFLAGS CPPFLAGS LDFLAGS; do
			    eval $v'="$hold_'$v'"'
		        done])
		    LIBS=$hold_libs])
		AS_IF([test $tcl_cv_lib_corefoundation = yes], [
		    LIBS="$LIBS -framework CoreFoundation"
		    AC_DEFINE(HAVE_COREFOUNDATION, 1,
			[Do we have access to Darwin CoreFoundation.framework?])
		], [tcl_corefoundation=no])
		AS_IF([test "$fat_32_64" = yes -a $tcl_corefoundation = yes],[
		    AC_CACHE_CHECK([for 64-bit CoreFoundation],
			    tcl_cv_lib_corefoundation_64, [
			for v in CFLAGS CPPFLAGS LDFLAGS; do
			    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
			done
			AC_TRY_LINK([#include <CoreFoundation/CoreFoundation.h>],
			    [CFBundleRef b = CFBundleGetMainBundle();],
			    tcl_cv_lib_corefoundation_64=yes,
			    tcl_cv_lib_corefoundation_64=no)
			for v in CFLAGS CPPFLAGS LDFLAGS; do
			    eval $v'="$hold_'$v'"'
			done])
		    AS_IF([test $tcl_cv_lib_corefoundation_64 = no], [
			AC_DEFINE(NO_COREFOUNDATION_64, 1,
			    [Is Darwin CoreFoundation unavailable for 64-bit?])
                        LDFLAGS="$LDFLAGS -Wl,-no_arch_warnings"
		    ])
		])
	    ])
	    ;;
	NEXTSTEP-*)
	    SHLIB_CFLAGS=""
	    SHLIB_LD='${CC} -nostdlib -r'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadNext.o"
	    DL_LIBS=""
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OS/390-*)
	    SHLIB_LD_LIBS=""
	    CFLAGS_OPTIMIZE=""		# Optimizer is buggy
	    AC_DEFINE(_OE_SOCKETS, 1,	# needed in sys/socket.h
		[Should OS/390 do the right thing with sockets?])
	    ;;
	OSF1-1.0|OSF1-1.1|OSF1-1.2)
	    # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
	    SHLIB_CFLAGS=""
	    # Hack: make package name same as library name
	    SHLIB_LD='ld -R -export $@:'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadOSF.o"
	    DL_LIBS=""
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OSF1-1.*)
	    # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
	    SHLIB_CFLAGS="-fPIC"
	    AS_IF([test "$SHARED_BUILD" = 1], [SHLIB_LD="ld -shared"], [
	        SHLIB_LD="ld -non_shared"
	    ])
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	OSF1-V*)
	    # Digital OSF/1
	    SHLIB_CFLAGS=""
	    AS_IF([test "$SHARED_BUILD" = 1], [
	        SHLIB_LD='ld -shared -expect_unresolved "*"'
	    ], [
	        SHLIB_LD='ld -non_shared -expect_unresolved "*"'
	    ])
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    AS_IF([test $doRpath = yes], [
		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
	    AS_IF([test "$GCC" = yes], [CFLAGS="$CFLAGS -mieee"], [
		CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"])
	    # see pthread_intro(3) for pthread support on osf1, k.furukawa
	    AS_IF([test "${TCL_THREADS}" = 1], [
		CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
		CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
		LIBS=`echo $LIBS | sed s/-lpthreads//`
		AS_IF([test "$GCC" = yes], [
		    LIBS="$LIBS -lpthread -lmach -lexc"
		], [
		    CFLAGS="$CFLAGS -pthread"
		    LDFLAGS="$LDFLAGS -pthread"
		])
	    ])
	    ;;
	QNX-6*)
	    # QNX RTP
	    # This may work for all QNX, but it was only reported for v6.
	    SHLIB_CFLAGS="-fPIC"
	    SHLIB_LD="ld -Bshareable -x"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    # dlopen is in -lc on QNX
	    DL_LIBS=""
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	SCO_SV-3.2*)
	    # Note, dlopen is available only on SCO 3.2.5 and greater. However,
	    # this test works, since "uname -s" was non-standard in 3.2.4 and
	    # below.
	    AS_IF([test "$GCC" = yes], [
	    	SHLIB_CFLAGS="-fPIC -melf"
	    	LDFLAGS="$LDFLAGS -melf -Wl,-Bexport"
	    ], [
	    	SHLIB_CFLAGS="-Kpic -belf"
	    	LDFLAGS="$LDFLAGS -belf -Wl,-Bexport"
	    ])
	    SHLIB_LD="ld -G"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS=""
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	SINIX*5.4*)
	    SHLIB_CFLAGS="-K PIC"
	    SHLIB_LD='${CC} -G'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
	SunOS-4*)
	    SHLIB_CFLAGS="-PIC"
	    SHLIB_LD="ld"
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}

	    # SunOS can't handle version numbers with dots in them in library
	    # specs, like -ltcl7.5, so use -ltcl75 instead.  Also, it
	    # requires an extra version number at the end of .so file names.
	    # So, the library has to have a name like libtcl75.so.1.0

	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
	    TCL_LIB_VERSIONS_OK=nodots
	    ;;
	SunOS-5.[[0-6]])
	    # Careful to not let 5.10+ fall into this case

	    # Note: If _REENTRANT isn't defined, then Solaris
	    # won't define thread-safe library routines.

	    AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
		[Do we really want to follow the standard? Yes we do!])

	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    AS_IF([test "$GCC" = yes], [
		SHLIB_LD='${CC} -shared'
		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	    ], [
		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
		CC_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
	    ])
	    ;;
	SunOS-5*)
	    # Note: If _REENTRANT isn't defined, then Solaris
	    # won't define thread-safe library routines.

	    AC_DEFINE(_REENTRANT, 1, [Do we want the reentrant OS API?])
	    AC_DEFINE(_POSIX_PTHREAD_SEMANTICS, 1,
		[Do we really want to follow the standard? Yes we do!])

	    SHLIB_CFLAGS="-KPIC"

	    # Check to enable 64-bit flags for compiler/linker
	    AS_IF([test "$do64bit" = yes], [
		arch=`isainfo`
		AS_IF([test "$arch" = "sparcv9 sparc"], [
		    AS_IF([test "$GCC" = yes], [
			AS_IF([test "`${CC} -dumpversion | awk -F. '{print [$]1}'`" -lt 3], [
			    AC_MSG_WARN([64bit mode not supported with GCC < 3.2 on $system])
			], [
			    do64bit_ok=yes
			    CFLAGS="$CFLAGS -m64 -mcpu=v9"
			    LDFLAGS="$LDFLAGS -m64 -mcpu=v9"
			    SHLIB_CFLAGS="-fPIC"
			])
		    ], [
			do64bit_ok=yes
			AS_IF([test "$do64bitVIS" = yes], [
			    CFLAGS="$CFLAGS -xarch=v9a"
			    LDFLAGS_ARCH="-xarch=v9a"
			], [
			    CFLAGS="$CFLAGS -xarch=v9"
			    LDFLAGS_ARCH="-xarch=v9"
			])
			# Solaris 64 uses this as well
			#LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH_64"
		    ])
		], [AS_IF([test "$arch" = "amd64 i386"], [
		    AS_IF([test "$GCC" = yes], [
			case $system in
			    SunOS-5.1[[1-9]]*|SunOS-5.[[2-9]][[0-9]]*)
				do64bit_ok=yes
				CFLAGS="$CFLAGS -m64"
				LDFLAGS="$LDFLAGS -m64";;
			    *)
				AC_MSG_WARN([64bit mode not supported with GCC on $system]);;
			esac
		    ], [
			do64bit_ok=yes
			case $system in
			    SunOS-5.1[[1-9]]*|SunOS-5.[[2-9]][[0-9]]*)
				CFLAGS="$CFLAGS -m64"
				LDFLAGS="$LDFLAGS -m64";;
			    *)
				CFLAGS="$CFLAGS -xarch=amd64"
				LDFLAGS="$LDFLAGS -xarch=amd64";;
			esac
		    ])
		], [AC_MSG_WARN([64bit mode not supported for $arch])])])
	    ])

	    #--------------------------------------------------------------------
	    # On Solaris 5.x i386 with the sunpro compiler we need to link
	    # with sunmath to get floating point rounding control
	    #--------------------------------------------------------------------
	    AS_IF([test "$GCC" = yes],[use_sunmath=no],[
		arch=`isainfo`
		AC_MSG_CHECKING([whether to use -lsunmath for fp rounding control])
		AS_IF([test "$arch" = "amd64 i386"], [
			AC_MSG_RESULT([yes])
			MATH_LIBS="-lsunmath $MATH_LIBS"
			AC_CHECK_HEADER(sunmath.h)
			use_sunmath=yes
			], [
			AC_MSG_RESULT([no])
			use_sunmath=no
		])
	    ])
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    AS_IF([test "$GCC" = yes], [
		SHLIB_LD='${CC} -shared'
		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
		AS_IF([test "$do64bit_ok" = yes], [
		    AS_IF([test "$arch" = "sparcv9 sparc"], [
			# We need to specify -static-libgcc or we need to
			# add the path to the sparv9 libgcc.
			SHLIB_LD="$SHLIB_LD -m64 -mcpu=v9 -static-libgcc"
			# for finding sparcv9 libgcc, get the regular libgcc
			# path, remove so name and append 'sparcv9'
			#v9gcclibdir="`gcc -print-file-name=libgcc_s.so` | ..."
			#CC_SEARCH_FLAGS="${CC_SEARCH_FLAGS},-R,$v9gcclibdir"
		    ], [AS_IF([test "$arch" = "amd64 i386"], [
			SHLIB_LD="$SHLIB_LD -m64 -static-libgcc"
		    ])])
		])
	    ], [
		AS_IF([test "$use_sunmath" = yes], [textmode=textoff],[textmode=text])
		case $system in
		    SunOS-5.[[1-9]][[0-9]]*)
			SHLIB_LD="\${CC} -G -z $textmode \${LDFLAGS}";;
		    *)
			SHLIB_LD="/usr/ccs/bin/ld -G -z $textmode";;
		esac
		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
	    ])
	    ;;
	UNIX_SV* | UnixWare-5*)
	    SHLIB_CFLAGS="-KPIC"
	    SHLIB_LD='${CC} -G'
	    SHLIB_LD_LIBS=""
	    SHLIB_SUFFIX=".so"
	    DL_OBJS="tclLoadDl.o"
	    DL_LIBS="-ldl"
	    # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
	    # that don't grok the -Bexport option.  Test that it does.
	    AC_CACHE_CHECK([for ld accepts -Bexport flag], tcl_cv_ld_Bexport, [
		hold_ldflags=$LDFLAGS
		LDFLAGS="$LDFLAGS -Wl,-Bexport"
		AC_TRY_LINK(, [int i;], tcl_cv_ld_Bexport=yes, tcl_cv_ld_Bexport=no)
	        LDFLAGS=$hold_ldflags])
	    AS_IF([test $tcl_cv_ld_Bexport = yes], [
		LDFLAGS="$LDFLAGS -Wl,-Bexport"
	    ])
	    CC_SEARCH_FLAGS=""
	    LD_SEARCH_FLAGS=""
	    ;;
    esac

    AS_IF([test "$do64bit" = yes -a "$do64bit_ok" = no], [
	AC_MSG_WARN([64bit support being disabled -- don't know magic for this platform])
    ])

    AS_IF([test "$do64bit" = yes -a "$do64bit_ok" = yes], [
	AC_DEFINE(TCL_CFG_DO64BIT, 1, [Is this a 64-bit build?])
    ])

dnl # Add any CPPFLAGS set in the environment to our CFLAGS, but delay doing so
dnl # until the end of configure, as configure's compile and link tests use
dnl # both CPPFLAGS and CFLAGS (unlike our compile and link) but configure's
dnl # preprocessing tests use only CPPFLAGS.
    AC_CONFIG_COMMANDS_PRE([CFLAGS="${CFLAGS} ${CPPFLAGS}"; CPPFLAGS=""])

    # Step 4: disable dynamic loading if requested via a command-line switch.

    AC_ARG_ENABLE(load,
	AC_HELP_STRING([--enable-load],
	    [allow dynamic loading and "load" command (default: on)]),
	[tcl_ok=$enableval], [tcl_ok=yes])
    AS_IF([test "$tcl_ok" = no], [DL_OBJS=""])

    AS_IF([test "x$DL_OBJS" != x], [BUILD_DLTEST="\$(DLTEST_TARGETS)"], [
	AC_MSG_WARN([Can't figure out how to do dynamic loading or shared libraries on this system.])
	SHLIB_CFLAGS=""
	SHLIB_LD=""
	SHLIB_SUFFIX=""
	DL_OBJS="tclLoadNone.o"
	DL_LIBS=""
	LDFLAGS="$LDFLAGS_ORIG"
	CC_SEARCH_FLAGS=""
	LD_SEARCH_FLAGS=""
	BUILD_DLTEST=""
    ])
    LDFLAGS="$LDFLAGS $LDFLAGS_ARCH"

    # If we're running gcc, then change the C flags for compiling shared
    # libraries to the right flags for gcc, instead of those for the
    # standard manufacturer compiler.

    AS_IF([test "$DL_OBJS" != "tclLoadNone.o" -a "$GCC" = yes], [
	case $system in
	    AIX-*) ;;
	    BSD/OS*) ;;
	    CYGWIN_*) ;;
	    IRIX*) ;;
	    NetBSD-*|FreeBSD-*|OpenBSD-*) ;;
	    Darwin-*) ;;
	    SCO_SV-3.2*) ;;
	    *) SHLIB_CFLAGS="-fPIC" ;;
	esac])

    AS_IF([test "$SHARED_LIB_SUFFIX" = ""], [
	SHARED_LIB_SUFFIX='${VERSION}${SHLIB_SUFFIX}'])
    AS_IF([test "$UNSHARED_LIB_SUFFIX" = ""], [
	UNSHARED_LIB_SUFFIX='${VERSION}.a'])
	DLL_INSTALL_DIR="\$(LIB_INSTALL_DIR)"

    AS_IF([test "${SHARED_BUILD}" = 1 -a "${SHLIB_SUFFIX}" != ""], [
        LIB_SUFFIX=${SHARED_LIB_SUFFIX}
        MAKE_LIB='${SHLIB_LD} -o [$]@ ${OBJS} ${SHLIB_LD_LIBS} ${TCL_SHLIB_LD_EXTRAS} ${TK_SHLIB_LD_EXTRAS} ${LD_SEARCH_FLAGS}'
        AS_IF([test "${SHLIB_SUFFIX}" = ".dll"], [
            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(BIN_INSTALL_DIR)"/$(LIB_FILE)'
            DLL_INSTALL_DIR="\$(BIN_INSTALL_DIR)"
        ], [
            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE)'
        ])
    ], [
        LIB_SUFFIX=${UNSHARED_LIB_SUFFIX}

        AS_IF([test "$RANLIB" = ""], [
            MAKE_LIB='$(STLIB_LD) [$]@ ${OBJS}'
            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE)'
        ], [
            MAKE_LIB='${STLIB_LD} [$]@ ${OBJS} ; ${RANLIB} [$]@'
            INSTALL_LIB='$(INSTALL_LIBRARY) $(LIB_FILE) "$(LIB_INSTALL_DIR)"/$(LIB_FILE) ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(LIB_FILE))'
        ])
    ])

    # Stub lib does not depend on shared/static configuration
    AS_IF([test "$RANLIB" = ""], [
        MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS}'
        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)/$(STUB_LIB_FILE)"'
    ], [
        MAKE_STUB_LIB='${STLIB_LD} [$]@ ${STUB_LIB_OBJS} ; ${RANLIB} [$]@'
        INSTALL_STUB_LIB='$(INSTALL_LIBRARY) $(STUB_LIB_FILE) "$(LIB_INSTALL_DIR)"/$(STUB_LIB_FILE) ; (cd "$(LIB_INSTALL_DIR)" ; $(RANLIB) $(STUB_LIB_FILE))'
    ])

    # Define TCL_LIBS now that we know what DL_LIBS is.
    # The trick here is that we don't want to change the value of TCL_LIBS if
    # it is already set when tclConfig.sh had been loaded by Tk.
    AS_IF([test "x${TCL_LIBS}" = x], [
        TCL_LIBS="${DL_LIBS} ${LIBS} ${MATH_LIBS}"])
    AC_SUBST(TCL_LIBS)

    # FIXME: This subst was left in only because the TCL_DL_LIBS
    # entry in tclConfig.sh uses it. It is not clear why someone
    # would use TCL_DL_LIBS instead of TCL_LIBS.
    AC_SUBST(DL_LIBS)

    AC_SUBST(DL_OBJS)
    AC_SUBST(PLAT_OBJS)
    AC_SUBST(PLAT_SRCS)
    AC_SUBST(LDAIX_SRC)
    AC_SUBST(CFLAGS)
    AC_SUBST(CFLAGS_DEBUG)
    AC_SUBST(CFLAGS_OPTIMIZE)
    AC_SUBST(CFLAGS_WARNING)

    AC_SUBST(LDFLAGS)
    AC_SUBST(LDFLAGS_DEBUG)
    AC_SUBST(LDFLAGS_OPTIMIZE)
    AC_SUBST(CC_SEARCH_FLAGS)
    AC_SUBST(LD_SEARCH_FLAGS)

    AC_SUBST(STLIB_LD)
    AC_SUBST(SHLIB_LD)
    AC_SUBST(TCL_SHLIB_LD_EXTRAS)
    AC_SUBST(TK_SHLIB_LD_EXTRAS)
    AC_SUBST(SHLIB_LD_LIBS)
    AC_SUBST(SHLIB_CFLAGS)
    AC_SUBST(SHLIB_SUFFIX)
    AC_DEFINE_UNQUOTED(TCL_SHLIB_EXT,"${SHLIB_SUFFIX}",
	[What is the default extension for shared libraries?])

    AC_SUBST(MAKE_LIB)
    AC_SUBST(MAKE_STUB_LIB)
    AC_SUBST(INSTALL_LIB)
    AC_SUBST(DLL_INSTALL_DIR)
    AC_SUBST(INSTALL_STUB_LIB)
    AC_SUBST(RANLIB)
])

#--------------------------------------------------------------------
# SC_SERIAL_PORT
#
#	Determine which interface to use to talk to the serial port.
#	Note that #include lines must begin in leftmost column for
#	some compilers to recognize them as preprocessor directives,
#	and some build environments have stdin not pointing at a
#	pseudo-terminal (usually /dev/null instead.)
#
# Arguments:
#	none
#
# Results:
#
#	Defines only one of the following vars:
#		HAVE_SYS_MODEM_H
#		USE_TERMIOS
#		USE_TERMIO
#		USE_SGTTY
#
#--------------------------------------------------------------------

AC_DEFUN([SC_SERIAL_PORT], [
    AC_CHECK_HEADERS(sys/modem.h)
    AC_CACHE_CHECK([termios vs. termio vs. sgtty], tcl_cv_api_serial, [
    AC_TRY_RUN([
#include <termios.h>

int main() {
    struct termios t;
    if (tcgetattr(0, &t) == 0) {
	cfsetospeed(&t, 0);
	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    if test $tcl_cv_api_serial = no ; then
	AC_TRY_RUN([
#include <termio.h>

int main() {
    struct termio t;
    if (ioctl(0, TCGETA, &t) == 0) {
	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    fi
    if test $tcl_cv_api_serial = no ; then
	AC_TRY_RUN([
#include <sgtty.h>

int main() {
    struct sgttyb t;
    if (ioctl(0, TIOCGETP, &t) == 0) {
	t.sg_ospeed = 0;
	t.sg_flags |= ODDP | EVENP | RAW;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    fi
    if test $tcl_cv_api_serial = no ; then
	AC_TRY_RUN([
#include <termios.h>
#include <errno.h>

int main() {
    struct termios t;
    if (tcgetattr(0, &t) == 0
	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
	cfsetospeed(&t, 0);
	t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    fi
    if test $tcl_cv_api_serial = no; then
	AC_TRY_RUN([
#include <termio.h>
#include <errno.h>

int main() {
    struct termio t;
    if (ioctl(0, TCGETA, &t) == 0
	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
	t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB;
	return 0;
    }
    return 1;
    }], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
    fi
    if test $tcl_cv_api_serial = no; then
	AC_TRY_RUN([
#include <sgtty.h>
#include <errno.h>

int main() {
    struct sgttyb t;
    if (ioctl(0, TIOCGETP, &t) == 0
	|| errno == ENOTTY || errno == ENXIO || errno == EINVAL) {
	t.sg_ospeed = 0;
	t.sg_flags |= ODDP | EVENP | RAW;
	return 0;
    }
    return 1;
}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
    fi])
    case $tcl_cv_api_serial in
	termios) AC_DEFINE(USE_TERMIOS, 1, [Use the termios API for serial lines]);;
	termio)  AC_DEFINE(USE_TERMIO, 1, [Use the termio API for serial lines]);;
	sgtty)   AC_DEFINE(USE_SGTTY, 1, [Use the sgtty API for serial lines]);;
    esac
])

#--------------------------------------------------------------------
# SC_MISSING_POSIX_HEADERS
#
#	Supply substitutes for missing POSIX header files.  Special
#	notes:
#	    - stdlib.h doesn't define strtol, strtoul, or
#	      strtod insome versions of SunOS
#	    - some versions of string.h don't declare procedures such
#	      as strstr
#
# Arguments:
#	none
#
# Results:
#
#	Defines some of the following vars:
#		NO_DIRENT_H
#		NO_VALUES_H
#		HAVE_LIMITS_H or NO_LIMITS_H
#		NO_STDLIB_H
#		NO_STRING_H
#		NO_SYS_WAIT_H
#		NO_DLFCN_H
#		HAVE_SYS_PARAM_H
#
#		HAVE_STRING_H ?
#
#--------------------------------------------------------------------

AC_DEFUN([SC_MISSING_POSIX_HEADERS], [
    AC_CACHE_CHECK([dirent.h], tcl_cv_dirent_h, [
    AC_TRY_LINK([#include <sys/types.h>
#include <dirent.h>], [
#ifndef _POSIX_SOURCE
#   ifdef __Lynx__
	/*
	 * Generate compilation error to make the test fail:  Lynx headers
	 * are only valid if really in the POSIX environment.
	 */

	missing_procedure();
#   endif
#endif
DIR *d;
struct dirent *entryPtr;
char *p;
d = opendir("foobar");
entryPtr = readdir(d);
p = entryPtr->d_name;
closedir(d);
], tcl_cv_dirent_h=yes, tcl_cv_dirent_h=no)])

    if test $tcl_cv_dirent_h = no; then
	AC_DEFINE(NO_DIRENT_H, 1, [Do we have <dirent.h>?])
    fi

    AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H, 1, [Do we have <float.h>?])])
    AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H, 1, [Do we have <values.h>?])])
    AC_CHECK_HEADER(limits.h,
	[AC_DEFINE(HAVE_LIMITS_H, 1, [Do we have <limits.h>?])],
	[AC_DEFINE(NO_LIMITS_H, 1, [Do we have <limits.h>?])])
    AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
    AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
    AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
    AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
    if test $tcl_ok = 0; then
	AC_DEFINE(NO_STDLIB_H, 1, [Do we have <stdlib.h>?])
    fi
    AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
    AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
    AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)

    # See also memmove check below for a place where NO_STRING_H can be
    # set and why.

    if test $tcl_ok = 0; then
	AC_DEFINE(NO_STRING_H, 1, [Do we have <string.h>?])
    fi

    AC_CHECK_HEADER(sys/wait.h, , [AC_DEFINE(NO_SYS_WAIT_H, 1, [Do we have <sys/wait.h>?])])
    AC_CHECK_HEADER(dlfcn.h, , [AC_DEFINE(NO_DLFCN_H, 1, [Do we have <dlfcn.h>?])])

    # OS/390 lacks sys/param.h (and doesn't need it, by chance).
    AC_HAVE_HEADERS(sys/param.h)
])

#--------------------------------------------------------------------
# SC_PATH_X
#
#	Locate the X11 header files and the X11 library archive.  Try
#	the ac_path_x macro first, but if it doesn't find the X stuff
#	(e.g. because there's no xmkmf program) then check through
#	a list of possible directories.  Under some conditions the
#	autoconf macro will return an include directory that contains
#	no include files, so double-check its result just to be safe.
#
# Arguments:
#	none
#
# Results:
#
#	Sets the the following vars:
#		XINCLUDES
#		XLIBSW
#
#--------------------------------------------------------------------

AC_DEFUN([SC_PATH_X], [
    AC_PATH_X
    not_really_there=""
    if test "$no_x" = ""; then
	if test "$x_includes" = ""; then
	    AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
	else
	    if test ! -r $x_includes/X11/Intrinsic.h; then
		not_really_there="yes"
	    fi
	fi
    fi
    if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
	AC_MSG_CHECKING([for X11 header files])
	found_xincludes="no"
	AC_TRY_CPP([#include <X11/Intrinsic.h>], found_xincludes="yes", found_xincludes="no")
	if test "$found_xincludes" = "no"; then
	    dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
	    for i in $dirs ; do
		if test -r $i/X11/Intrinsic.h; then
		    AC_MSG_RESULT([$i])
		    XINCLUDES=" -I$i"
		    found_xincludes="yes"
		    break
		fi
	    done
	fi
    else
	if test "$x_includes" != ""; then
	    XINCLUDES="-I$x_includes"
	    found_xincludes="yes"
	fi
    fi
    if test "$found_xincludes" = "no"; then
	AC_MSG_RESULT([couldn't find any!])
    fi

    if test "$no_x" = yes; then
	AC_MSG_CHECKING([for X11 libraries])
	XLIBSW=nope
	dirs="/usr/unsupported/lib /usr/local/lib /usr/X386/lib /usr/X11R6/lib /usr/X11R5/lib /usr/lib/X11R5 /usr/lib/X11R4 /usr/openwin/lib /usr/X11/lib /usr/sww/X11/lib"
	for i in $dirs ; do
	    if test -r $i/libX11.a -o -r $i/libX11.so -o -r $i/libX11.sl -o -r $i/libX11.dylib; then
		AC_MSG_RESULT([$i])
		XLIBSW="-L$i -lX11"
		x_libraries="$i"
		break
	    fi
	done
    else
	if test "$x_libraries" = ""; then
	    XLIBSW=-lX11
	else
	    XLIBSW="-L$x_libraries -lX11"
	fi
    fi
    if test "$XLIBSW" = nope ; then
	AC_CHECK_LIB(Xwindow, XCreateWindow, XLIBSW=-lXwindow)
    fi
    if test "$XLIBSW" = nope ; then
	AC_MSG_RESULT([could not find any!  Using -lX11.])
	XLIBSW=-lX11
    fi
])

#--------------------------------------------------------------------
# SC_BLOCKING_STYLE
#
#	The statements below check for systems where POSIX-style
#	non-blocking I/O (O_NONBLOCK) doesn't work or is unimplemented.
#	On these systems (mostly older ones), use the old BSD-style
#	FIONBIO approach instead.
#
# Arguments:
#	none
#
# Results:
#
#	Defines some of the following vars:
#		HAVE_SYS_IOCTL_H
#		HAVE_SYS_FILIO_H
#		USE_FIONBIO
#		O_NONBLOCK
#
#--------------------------------------------------------------------

AC_DEFUN([SC_BLOCKING_STYLE], [
    AC_CHECK_HEADERS(sys/ioctl.h)
    AC_CHECK_HEADERS(sys/filio.h)
    SC_CONFIG_SYSTEM
    AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O])
    case $system in
	OSF*)
	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
	    AC_MSG_RESULT([FIONBIO])
	    ;;
	SunOS-4*)
	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
	    AC_MSG_RESULT([FIONBIO])
	    ;;
	*)
	    AC_MSG_RESULT([O_NONBLOCK])
	    ;;
    esac
])

#--------------------------------------------------------------------
# SC_TIME_HANLDER
#
#	Checks how the system deals with time.h, what time structures
#	are used on the system, and what fields the structures have.
#
# Arguments:
#	none
#
# Results:
#
#	Defines some of the following vars:
#		USE_DELTA_FOR_TZ
#		HAVE_TM_GMTOFF
#		HAVE_TM_TZADJ
#		HAVE_TIMEZONE_VAR
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TIME_HANDLER], [
    AC_CHECK_HEADERS(sys/time.h)
    AC_HEADER_TIME

    AC_CHECK_FUNCS(gmtime_r localtime_r mktime)

    AC_CACHE_CHECK([tm_tzadj in struct tm], tcl_cv_member_tm_tzadj, [
	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
	    tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no)])
    if test $tcl_cv_member_tm_tzadj = yes ; then
	AC_DEFINE(HAVE_TM_TZADJ, 1, [Should we use the tm_tzadj field of struct tm?])
    fi

    AC_CACHE_CHECK([tm_gmtoff in struct tm], tcl_cv_member_tm_gmtoff, [
	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
	    tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no)])
    if test $tcl_cv_member_tm_gmtoff = yes ; then
	AC_DEFINE(HAVE_TM_GMTOFF, 1, [Should we use the tm_gmtoff field of struct tm?])
    fi

    #
    # Its important to include time.h in this check, as some systems
    # (like convex) have timezone functions, etc.
    #
    AC_CACHE_CHECK([long timezone variable], tcl_cv_timezone_long, [
	AC_TRY_COMPILE([#include <time.h>],
	    [extern long timezone;
	    timezone += 1;
	    exit (0);],
	    tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no)])
    if test $tcl_cv_timezone_long = yes ; then
	AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
    else
	#
	# On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
	#
	AC_CACHE_CHECK([time_t timezone variable], tcl_cv_timezone_time, [
	    AC_TRY_COMPILE([#include <time.h>],
		[extern time_t timezone;
		timezone += 1;
		exit (0);],
		tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no)])
	if test $tcl_cv_timezone_time = yes ; then
	    AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
	fi
    fi
])

#--------------------------------------------------------------------
# SC_BUGGY_STRTOD
#
#	Under Solaris 2.4, strtod returns the wrong value for the
#	terminating character under some conditions.  Check for this
#	and if the problem exists use a substitute procedure
#	"fixstrtod" (provided by Tcl) that corrects the error.
#	Also, on Compaq's Tru64 Unix 5.0,
#	strtod(" ") returns 0.0 instead of a failure to convert.
#
# Arguments:
#	none
#
# Results:
#
#	Might defines some of the following vars:
#		strtod (=fixstrtod)
#
#--------------------------------------------------------------------

AC_DEFUN([SC_BUGGY_STRTOD], [
    AC_CHECK_FUNC(strtod, tcl_strtod=1, tcl_strtod=0)
    if test "$tcl_strtod" = 1; then
	AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
	    AC_TRY_RUN([
		extern double strtod();
		int main() {
		    char *infString="Inf", *nanString="NaN", *spaceString=" ";
		    char *term;
		    double value;
		    value = strtod(infString, &term);
		    if ((term != infString) && (term[-1] == 0)) {
			exit(1);
		    }
		    value = strtod(nanString, &term);
		    if ((term != nanString) && (term[-1] == 0)) {
			exit(1);
		    }
		    value = strtod(spaceString, &term);
		    if (term == (spaceString+1)) {
			exit(1);
		    }
		    exit(0);
		}], tcl_cv_strtod_buggy=ok, tcl_cv_strtod_buggy=buggy,
		    tcl_cv_strtod_buggy=buggy)])
	if test "$tcl_cv_strtod_buggy" = buggy; then
	    AC_LIBOBJ([fixstrtod])
	    USE_COMPAT=1
	    AC_DEFINE(strtod, fixstrtod, [Do we want to use the strtod() in compat?])
	fi
    fi
])

#--------------------------------------------------------------------
# SC_TCL_LINK_LIBS
#
#	Search for the libraries needed to link the Tcl shell.
#	Things like the math library (-lm) and socket stuff (-lsocket vs.
#	-lnsl) are dealt with here.
#
# Arguments:
#	None.
#
# Results:
#
#	Might append to the following vars:
#		LIBS
#		MATH_LIBS
#
#	Might define the following vars:
#		HAVE_NET_ERRNO_H
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_LINK_LIBS], [
    #--------------------------------------------------------------------
    # On a few very rare systems, all of the libm.a stuff is
    # already in libc.a.  Set compiler flags accordingly.
    # Also, Linux requires the "ieee" library for math to work
    # right (and it must appear before "-lm").
    #--------------------------------------------------------------------

    AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm")
    AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])

    #--------------------------------------------------------------------
    # Interactive UNIX requires -linet instead of -lsocket, plus it
    # needs net/errno.h to define the socket-related error codes.
    #--------------------------------------------------------------------

    AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"])
    AC_CHECK_HEADER(net/errno.h, [
	AC_DEFINE(HAVE_NET_ERRNO_H, 1, [Do we have <net/errno.h>?])])

    #--------------------------------------------------------------------
    #	Check for the existence of the -lsocket and -lnsl libraries.
    #	The order here is important, so that they end up in the right
    #	order in the command line generated by make.  Here are some
    #	special considerations:
    #	1. Use "connect" and "accept" to check for -lsocket, and
    #	   "gethostbyname" to check for -lnsl.
    #	2. Use each function name only once:  can't redo a check because
    #	   autoconf caches the results of the last check and won't redo it.
    #	3. Use -lnsl and -lsocket only if they supply procedures that
    #	   aren't already present in the normal libraries.  This is because
    #	   IRIX 5.2 has libraries, but they aren't needed and they're
    #	   bogus:  they goof up name resolution if used.
    #	4. On some SVR4 systems, can't use -lsocket without -lnsl too.
    #	   To get around this problem, check for both libraries together
    #	   if -lsocket doesn't work by itself.
    #--------------------------------------------------------------------

    tcl_checkBoth=0
    AC_CHECK_FUNC(connect, tcl_checkSocket=0, tcl_checkSocket=1)
    if test "$tcl_checkSocket" = 1; then
	AC_CHECK_FUNC(setsockopt, , [AC_CHECK_LIB(socket, setsockopt,
	    LIBS="$LIBS -lsocket", tcl_checkBoth=1)])
    fi
    if test "$tcl_checkBoth" = 1; then
	tk_oldLibs=$LIBS
	LIBS="$LIBS -lsocket -lnsl"
	AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs])
    fi
    AC_CHECK_FUNC(gethostbyname, , [AC_CHECK_LIB(nsl, gethostbyname,
	    [LIBS="$LIBS -lnsl"])])
])

#--------------------------------------------------------------------
# SC_TCL_EARLY_FLAGS
#
#	Check for what flags are needed to be passed so the correct OS
#	features are available.
#
# Arguments:
#	None
#
# Results:
#
#	Might define the following vars:
#		_ISOC99_SOURCE
#		_LARGEFILE64_SOURCE
#		_LARGEFILE_SOURCE64
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_EARLY_FLAG],[
    AC_CACHE_VAL([tcl_cv_flag_]translit($1,[A-Z],[a-z]),
	AC_TRY_COMPILE([$2], $3, [tcl_cv_flag_]translit($1,[A-Z],[a-z])=no,
	    AC_TRY_COMPILE([[#define ]$1[ 1
]$2], $3,
		[tcl_cv_flag_]translit($1,[A-Z],[a-z])=yes,
		[tcl_cv_flag_]translit($1,[A-Z],[a-z])=no)))
    if test ["x${tcl_cv_flag_]translit($1,[A-Z],[a-z])[}" = "xyes"] ; then
	AC_DEFINE($1, 1, [Add the ]$1[ flag when building])
	tcl_flags="$tcl_flags $1"
    fi
])

AC_DEFUN([SC_TCL_EARLY_FLAGS],[
    AC_MSG_CHECKING([for required early compiler flags])
    tcl_flags=""
    SC_TCL_EARLY_FLAG(_ISOC99_SOURCE,[#include <stdlib.h>],
	[char *p = (char *)strtoll; char *q = (char *)strtoull;])
    SC_TCL_EARLY_FLAG(_LARGEFILE64_SOURCE,[#include <sys/stat.h>],
	[struct stat64 buf; int i = stat64("/", &buf);])
    SC_TCL_EARLY_FLAG(_LARGEFILE_SOURCE64,[#include <sys/stat.h>],
	[char *p = (char *)open64;])
    if test "x${tcl_flags}" = "x" ; then
	AC_MSG_RESULT([none])
    else
	AC_MSG_RESULT([${tcl_flags}])
    fi
])

#--------------------------------------------------------------------
# SC_TCL_64BIT_FLAGS
#
#	Check for what is defined in the way of 64-bit features.
#
# Arguments:
#	None
#
# Results:
#
#	Might define the following vars:
#		TCL_WIDE_INT_IS_LONG
#		TCL_WIDE_INT_TYPE
#		HAVE_STRUCT_DIRENT64
#		HAVE_STRUCT_STAT64
#		HAVE_TYPE_OFF64_T
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_64BIT_FLAGS], [
    AC_MSG_CHECKING([for 64-bit integer type])
    AC_CACHE_VAL(tcl_cv_type_64bit,[
	tcl_cv_type_64bit=none
	# See if the compiler knows natively about __int64
	AC_TRY_COMPILE(,[__int64 value = (__int64) 0;],
	    tcl_type_64bit=__int64, tcl_type_64bit="long long")
	# See if we should use long anyway  Note that we substitute in the
	# type that is our current guess for a 64-bit type inside this check
	# program, so it should be modified only carefully...
        AC_TRY_COMPILE(,[switch (0) {
            case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ;
        }],tcl_cv_type_64bit=${tcl_type_64bit})])
    if test "${tcl_cv_type_64bit}" = none ; then
	AC_DEFINE(TCL_WIDE_INT_IS_LONG, 1, [Are wide integers to be implemented with C 'long's?])
	AC_MSG_RESULT([using long])
    else
	AC_DEFINE_UNQUOTED(TCL_WIDE_INT_TYPE,${tcl_cv_type_64bit},
	    [What type should be used to define wide integers?])
	AC_MSG_RESULT([${tcl_cv_type_64bit}])

	# Now check for auxiliary declarations
	AC_CACHE_CHECK([for struct dirent64], tcl_cv_struct_dirent64,[
	    AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/dirent.h>],[struct dirent64 p;],
		tcl_cv_struct_dirent64=yes,tcl_cv_struct_dirent64=no)])
	if test "x${tcl_cv_struct_dirent64}" = "xyes" ; then
	    AC_DEFINE(HAVE_STRUCT_DIRENT64, 1, [Is 'struct dirent64' in <sys/types.h>?])
	fi

	AC_CACHE_CHECK([for struct stat64], tcl_cv_struct_stat64,[
	    AC_TRY_COMPILE([#include <sys/stat.h>],[struct stat64 p;
],
		tcl_cv_struct_stat64=yes,tcl_cv_struct_stat64=no)])
	if test "x${tcl_cv_struct_stat64}" = "xyes" ; then
	    AC_DEFINE(HAVE_STRUCT_STAT64, 1, [Is 'struct stat64' in <sys/stat.h>?])
	fi

	AC_CHECK_FUNCS(open64 lseek64)
	AC_MSG_CHECKING([for off64_t])
	AC_CACHE_VAL(tcl_cv_type_off64_t,[
	    AC_TRY_COMPILE([#include <sys/types.h>],[off64_t offset;
],
		tcl_cv_type_off64_t=yes,tcl_cv_type_off64_t=no)])
	dnl Define HAVE_TYPE_OFF64_T only when the off64_t type and the
	dnl functions lseek64 and open64 are defined.
	if test "x${tcl_cv_type_off64_t}" = "xyes" && \
	        test "x${ac_cv_func_lseek64}" = "xyes" && \
	        test "x${ac_cv_func_open64}" = "xyes" ; then
	    AC_DEFINE(HAVE_TYPE_OFF64_T, 1, [Is off64_t in <sys/types.h>?])
	    AC_MSG_RESULT([yes])
	else
	    AC_MSG_RESULT([no])
	fi
    fi
])

#--------------------------------------------------------------------
# SC_TCL_CFG_ENCODING	TIP #59
#
#	Declare the encoding to use for embedded configuration information.
#
# Arguments:
#	None.
#
# Results:
#	Might append to the following vars:
#		DEFS	(implicit)
#
#	Will define the following vars:
#		TCL_CFGVAL_ENCODING
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_CFG_ENCODING], [
    AC_ARG_WITH(encoding,
	AC_HELP_STRING([--with-encoding],
	    [encoding for configuration values (default: iso8859-1)]),
	with_tcencoding=${withval})

    if test x"${with_tcencoding}" != x ; then
	AC_DEFINE_UNQUOTED(TCL_CFGVAL_ENCODING,"${with_tcencoding}",
	    [What encoding should be used for embedded configuration info?])
    else
	AC_DEFINE(TCL_CFGVAL_ENCODING,"iso8859-1",
	    [What encoding should be used for embedded configuration info?])
    fi
])

#--------------------------------------------------------------------
# SC_TCL_CHECK_BROKEN_FUNC
#
#	Check for broken function.
#
# Arguments:
#	funcName - function to test for
#	advancedTest - the advanced test to run if the function is present
#
# Results:
#	Might cause compatability versions of the function to be used.
#	Might affect the following vars:
#		USE_COMPAT	(implicit)
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_CHECK_BROKEN_FUNC],[
    AC_CHECK_FUNC($1, tcl_ok=1, tcl_ok=0)
    if test ["$tcl_ok"] = 1; then
	AC_CACHE_CHECK([proper ]$1[ implementation], [tcl_cv_]$1[_unbroken],
	    AC_TRY_RUN([[int main() {]$2[}]],[tcl_cv_]$1[_unbroken]=ok,
		[tcl_cv_]$1[_unbroken]=broken,[tcl_cv_]$1[_unbroken]=unknown))
	if test ["$tcl_cv_]$1[_unbroken"] = "ok"; then
	    tcl_ok=1
	else
	    tcl_ok=0
	fi
    fi
    if test ["$tcl_ok"] = 0; then
	AC_LIBOBJ($1)
	USE_COMPAT=1
    fi
])

#--------------------------------------------------------------------
# SC_TCL_GETHOSTBYADDR_R
#
#	Check if we have MT-safe variant of gethostbyaddr().
#
# Arguments:
#	None
#
# Results:
#
#	Might define the following vars:
#		HAVE_GETHOSTBYADDR_R
#		HAVE_GETHOSTBYADDR_R_7
#		HAVE_GETHOSTBYADDR_R_8
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_GETHOSTBYADDR_R], [AC_CHECK_FUNC(gethostbyaddr_r, [
    AC_CACHE_CHECK([for gethostbyaddr_r with 7 args], tcl_cv_api_gethostbyaddr_r_7, [
    AC_TRY_COMPILE([
	#include <netdb.h>
    ], [
	char *addr;
	int length;
	int type;
	struct hostent *result;
	char buffer[2048];
	int buflen = 2048;
	int h_errnop;

	(void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
			       &h_errnop);
    ], tcl_cv_api_gethostbyaddr_r_7=yes, tcl_cv_api_gethostbyaddr_r_7=no)])
    tcl_ok=$tcl_cv_api_gethostbyaddr_r_7
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETHOSTBYADDR_R_7, 1,
	    [Define to 1 if gethostbyaddr_r takes 7 args.])
    else
	AC_CACHE_CHECK([for gethostbyaddr_r with 8 args], tcl_cv_api_gethostbyaddr_r_8, [
	AC_TRY_COMPILE([
	    #include <netdb.h>
	], [
	    char *addr;
	    int length;
	    int type;
	    struct hostent *result, *resultp;
	    char buffer[2048];
	    int buflen = 2048;
	    int h_errnop;

	    (void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
				   &resultp, &h_errnop);
	], tcl_cv_api_gethostbyaddr_r_8=yes, tcl_cv_api_gethostbyaddr_r_8=no)])
	tcl_ok=$tcl_cv_api_gethostbyaddr_r_8
	if test "$tcl_ok" = yes; then
	    AC_DEFINE(HAVE_GETHOSTBYADDR_R_8, 1,
		[Define to 1 if gethostbyaddr_r takes 8 args.])
	fi
    fi
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETHOSTBYADDR_R, 1,
	    [Define to 1 if gethostbyaddr_r is available.])
    fi
])])

#--------------------------------------------------------------------
# SC_TCL_GETHOSTBYNAME_R
#
#	Check to see what variant of gethostbyname_r() we have.
#	Based on David Arnold's example from the comp.programming.threads
#	FAQ Q213
#
# Arguments:
#	None
#
# Results:
#
#	Might define the following vars:
#		HAVE_GETHOSTBYADDR_R
#		HAVE_GETHOSTBYADDR_R_3
#		HAVE_GETHOSTBYADDR_R_5
#		HAVE_GETHOSTBYADDR_R_6
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_GETHOSTBYNAME_R], [AC_CHECK_FUNC(gethostbyname_r, [
    AC_CACHE_CHECK([for gethostbyname_r with 6 args], tcl_cv_api_gethostbyname_r_6, [
    AC_TRY_COMPILE([
	#include <netdb.h>
    ], [
	char *name;
	struct hostent *he, *res;
	char buffer[2048];
	int buflen = 2048;
	int h_errnop;

	(void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop);
    ], tcl_cv_api_gethostbyname_r_6=yes, tcl_cv_api_gethostbyname_r_6=no)])
    tcl_ok=$tcl_cv_api_gethostbyname_r_6
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETHOSTBYNAME_R_6, 1,
	    [Define to 1 if gethostbyname_r takes 6 args.])
    else
	AC_CACHE_CHECK([for gethostbyname_r with 5 args], tcl_cv_api_gethostbyname_r_5, [
	AC_TRY_COMPILE([
	    #include <netdb.h>
	], [
	    char *name;
	    struct hostent *he;
	    char buffer[2048];
	    int buflen = 2048;
	    int h_errnop;

	    (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop);
	], tcl_cv_api_gethostbyname_r_5=yes, tcl_cv_api_gethostbyname_r_5=no)])
	tcl_ok=$tcl_cv_api_gethostbyname_r_5
	if test "$tcl_ok" = yes; then
	    AC_DEFINE(HAVE_GETHOSTBYNAME_R_5, 1,
		[Define to 1 if gethostbyname_r takes 5 args.])
	else
	    AC_CACHE_CHECK([for gethostbyname_r with 3 args], tcl_cv_api_gethostbyname_r_3, [
	    AC_TRY_COMPILE([
		#include <netdb.h>
	    ], [
		char *name;
		struct hostent *he;
		struct hostent_data data;

		(void) gethostbyname_r(name, he, &data);
	    ], tcl_cv_api_gethostbyname_r_3=yes, tcl_cv_api_gethostbyname_r_3=no)])
	    tcl_ok=$tcl_cv_api_gethostbyname_r_3
	    if test "$tcl_ok" = yes; then
		AC_DEFINE(HAVE_GETHOSTBYNAME_R_3, 1,
		    [Define to 1 if gethostbyname_r takes 3 args.])
	    fi
	fi
    fi
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETHOSTBYNAME_R, 1,
	    [Define to 1 if gethostbyname_r is available.])
    fi
])])

#--------------------------------------------------------------------
# SC_TCL_GETPWUID_R
#
#	Check if we have MT-safe variant of getpwuid() and if yes,
#	which one exactly.
#
# Arguments:
#	None
#
# Results:
#
#	Might define the following vars:
#		HAVE_GETPWUID_R
#		HAVE_GETPWUID_R_4
#		HAVE_GETPWUID_R_5
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_GETPWUID_R], [AC_CHECK_FUNC(getpwuid_r, [
    AC_CACHE_CHECK([for getpwuid_r with 5 args], tcl_cv_api_getpwuid_r_5, [
    AC_TRY_COMPILE([
	#include <sys/types.h>
	#include <pwd.h>
    ], [
	uid_t uid;
	struct passwd pw, *pwp;
	char buf[512];
	int buflen = 512;

	(void) getpwuid_r(uid, &pw, buf, buflen, &pwp);
    ], tcl_cv_api_getpwuid_r_5=yes, tcl_cv_api_getpwuid_r_5=no)])
    tcl_ok=$tcl_cv_api_getpwuid_r_5
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETPWUID_R_5, 1,
	    [Define to 1 if getpwuid_r takes 5 args.])
    else
	AC_CACHE_CHECK([for getpwuid_r with 4 args], tcl_cv_api_getpwuid_r_4, [
	AC_TRY_COMPILE([
	    #include <sys/types.h>
	    #include <pwd.h>
	], [
	    uid_t uid;
	    struct passwd pw;
	    char buf[512];
	    int buflen = 512;

	    (void)getpwnam_r(uid, &pw, buf, buflen);
	], tcl_cv_api_getpwuid_r_4=yes, tcl_cv_api_getpwuid_r_4=no)])
	tcl_ok=$tcl_cv_api_getpwuid_r_4
	if test "$tcl_ok" = yes; then
	    AC_DEFINE(HAVE_GETPWUID_R_4, 1,
		[Define to 1 if getpwuid_r takes 4 args.])
	fi
    fi
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETPWUID_R, 1,
	    [Define to 1 if getpwuid_r is available.])
    fi
])])

#--------------------------------------------------------------------
# SC_TCL_GETPWNAM_R
#
#	Check if we have MT-safe variant of getpwnam() and if yes,
#	which one exactly.
#
# Arguments:
#	None
#
# Results:
#
#	Might define the following vars:
#		HAVE_GETPWNAM_R
#		HAVE_GETPWNAM_R_4
#		HAVE_GETPWNAM_R_5
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_GETPWNAM_R], [AC_CHECK_FUNC(getpwnam_r, [
    AC_CACHE_CHECK([for getpwnam_r with 5 args], tcl_cv_api_getpwnam_r_5, [
    AC_TRY_COMPILE([
	#include <sys/types.h>
	#include <pwd.h>
    ], [
	char *name;
	struct passwd pw, *pwp;
	char buf[512];
	int buflen = 512;

	(void) getpwnam_r(name, &pw, buf, buflen, &pwp);
    ], tcl_cv_api_getpwnam_r_5=yes, tcl_cv_api_getpwnam_r_5=no)])
    tcl_ok=$tcl_cv_api_getpwnam_r_5
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETPWNAM_R_5, 1,
	    [Define to 1 if getpwnam_r takes 5 args.])
    else
	AC_CACHE_CHECK([for getpwnam_r with 4 args], tcl_cv_api_getpwnam_r_4, [
	AC_TRY_COMPILE([
	    #include <sys/types.h>
	    #include <pwd.h>
	], [
	    char *name;
	    struct passwd pw;
	    char buf[512];
	    int buflen = 512;

	    (void)getpwnam_r(name, &pw, buf, buflen);
	], tcl_cv_api_getpwnam_r_4=yes, tcl_cv_api_getpwnam_r_4=no)])
	tcl_ok=$tcl_cv_api_getpwnam_r_4
	if test "$tcl_ok" = yes; then
	    AC_DEFINE(HAVE_GETPWNAM_R_4, 1,
		[Define to 1 if getpwnam_r takes 4 args.])
	fi
    fi
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETPWNAM_R, 1,
	    [Define to 1 if getpwnam_r is available.])
    fi
])])

#--------------------------------------------------------------------
# SC_TCL_GETGRGID_R
#
#	Check if we have MT-safe variant of getgrgid() and if yes,
#	which one exactly.
#
# Arguments:
#	None
#
# Results:
#
#	Might define the following vars:
#		HAVE_GETGRGID_R
#		HAVE_GETGRGID_R_4
#		HAVE_GETGRGID_R_5
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_GETGRGID_R], [AC_CHECK_FUNC(getgrgid_r, [
    AC_CACHE_CHECK([for getgrgid_r with 5 args], tcl_cv_api_getgrgid_r_5, [
    AC_TRY_COMPILE([
	#include <sys/types.h>
	#include <grp.h>
    ], [
	gid_t gid;
	struct group gr, *grp;
	char buf[512];
	int buflen = 512;

	(void) getgrgid_r(gid, &gr, buf, buflen, &grp);
    ], tcl_cv_api_getgrgid_r_5=yes, tcl_cv_api_getgrgid_r_5=no)])
    tcl_ok=$tcl_cv_api_getgrgid_r_5
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETGRGID_R_5, 1,
	    [Define to 1 if getgrgid_r takes 5 args.])
    else
	AC_CACHE_CHECK([for getgrgid_r with 4 args], tcl_cv_api_getgrgid_r_4, [
	AC_TRY_COMPILE([
	    #include <sys/types.h>
	    #include <grp.h>
	], [
	    gid_t gid;
	    struct group gr;
	    char buf[512];
	    int buflen = 512;

	    (void)getgrgid_r(gid, &gr, buf, buflen);
	], tcl_cv_api_getgrgid_r_4=yes, tcl_cv_api_getgrgid_r_4=no)])
	tcl_ok=$tcl_cv_api_getgrgid_r_4
	if test "$tcl_ok" = yes; then
	    AC_DEFINE(HAVE_GETGRGID_R_4, 1,
		[Define to 1 if getgrgid_r takes 4 args.])
	fi
    fi
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETGRGID_R, 1,
	    [Define to 1 if getgrgid_r is available.])
    fi
])])

#--------------------------------------------------------------------
# SC_TCL_GETGRNAM_R
#
#	Check if we have MT-safe variant of getgrnam() and if yes,
#	which one exactly.
#
# Arguments:
#	None
#
# Results:
#
#	Might define the following vars:
#		HAVE_GETGRNAM_R
#		HAVE_GETGRNAM_R_4
#		HAVE_GETGRNAM_R_5
#
#--------------------------------------------------------------------

AC_DEFUN([SC_TCL_GETGRNAM_R], [AC_CHECK_FUNC(getgrnam_r, [
    AC_CACHE_CHECK([for getgrnam_r with 5 args], tcl_cv_api_getgrnam_r_5, [
    AC_TRY_COMPILE([
	#include <sys/types.h>
	#include <grp.h>
    ], [
	char *name;
	struct group gr, *grp;
	char buf[512];
	int buflen = 512;

	(void) getgrnam_r(name, &gr, buf, buflen, &grp);
    ], tcl_cv_api_getgrnam_r_5=yes, tcl_cv_api_getgrnam_r_5=no)])
    tcl_ok=$tcl_cv_api_getgrnam_r_5
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETGRNAM_R_5, 1,
	    [Define to 1 if getgrnam_r takes 5 args.])
    else
	AC_CACHE_CHECK([for getgrnam_r with 4 args], tcl_cv_api_getgrnam_r_4, [
	AC_TRY_COMPILE([
	    #include <sys/types.h>
	    #include <grp.h>
	], [
	    char *name;
	    struct group gr;
	    char buf[512];
	    int buflen = 512;

	    (void)getgrnam_r(name, &gr, buf, buflen);
	], tcl_cv_api_getgrnam_r_4=yes, tcl_cv_api_getgrnam_r_4=no)])
	tcl_ok=$tcl_cv_api_getgrnam_r_4
	if test "$tcl_ok" = yes; then
	    AC_DEFINE(HAVE_GETGRNAM_R_4, 1,
		[Define to 1 if getgrnam_r takes 4 args.])
	fi
    fi
    if test "$tcl_ok" = yes; then
	AC_DEFINE(HAVE_GETGRNAM_R, 1,
	    [Define to 1 if getgrnam_r is available.])
    fi
])])

AC_DEFUN([SC_TCL_IPV6],[
	NEED_FAKE_RFC2553=0
	AC_CHECK_FUNCS(getnameinfo getaddrinfo freeaddrinfo gai_strerror,,[NEED_FAKE_RFC2553=1])
	AC_CHECK_TYPES([
		struct addrinfo,
		struct in6_addr,
		struct sockaddr_in6,
		struct sockaddr_storage],,[NEED_FAKE_RFC2553=1],[[
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
]])
if test "x$NEED_FAKE_RFC2553" = "x1"; then
   AC_DEFINE(NEED_FAKE_RFC2553)
   AC_LIBOBJ([fake-rfc2553])
   AC_CHECK_FUNC(strlcpy)
fi
])
# Local Variables:
# mode: autoconf
# End: