configure.in -> configure.ac

1 files changed, 857 insertions, 0 deletions

diff --git a/unix/configure.ac b/unix/configure.ac
new file mode 100644
index 0000000..a748246
--- /dev/null
+++ b/unix/configure.ac
@@ -0,0 +1,857 @@
+#! /bin/bash -norc
+dnl	This file is an input file used by the GNU "autoconf" program to
+dnl	generate the file "configure", which is run during Tk installation
+dnl	to configure the system for the local environment.
+
+AC_INIT([tk],[8.7])
+AC_PREREQ(2.69)
+
+dnl This is only used when included from macosx/configure.ac
+m4_ifdef([SC_USE_CONFIG_HEADERS], [
+    AC_CONFIG_HEADERS([tkConfig.h:../unix/tkConfig.h.in])
+    AC_CONFIG_COMMANDS_PRE([DEFS="-DHAVE_TK_CONFIG_H  -imacros tkConfig.h"])
+    AH_TOP([
+    #ifndef _TKCONFIG
+    #define _TKCONFIG])
+    AH_BOTTOM([
+    /* Undef unused package specific autoheader defines so that we can
+     * include both tclConfig.h and tkConfig.h at the same time: */
+    /* override */ #undef PACKAGE_NAME
+    /* override */ #undef PACKAGE_STRING
+    /* override */ #undef PACKAGE_TARNAME
+    #endif /* _TKCONFIG */])
+])
+
+TK_VERSION=8.7
+TK_MAJOR_VERSION=8
+TK_MINOR_VERSION=7
+TK_PATCH_LEVEL="a0"
+VERSION=${TK_VERSION}
+LOCALES="cs da de el en en_gb eo es fr hu it nl pl pt ru sv"
+
+#--------------------------------------------------------------------
+# Find and load the tclConfig.sh file
+#--------------------------------------------------------------------
+
+SC_PATH_TCLCONFIG
+SC_LOAD_TCLCONFIG
+
+if test "${TCL_MAJOR_VERSION}" -ne 8 ; then
+    AC_MSG_ERROR([${PACKAGE_NAME} ${PACKAGE_VERSION} requires Tcl 8.6+
+Found config for Tcl ${TCL_VERSION}])
+fi
+if test "${TCL_MINOR_VERSION}" -lt 6 ; then
+    AC_MSG_ERROR([${PACKAGE_NAME} ${PACKAGE_VERSION} requires Tcl 8.6+
+Found config for Tcl ${TCL_VERSION}])
+fi
+
+SC_PROG_TCLSH
+SC_BUILD_TCLSH
+
+#------------------------------------------------------------------------
+# Handle the --prefix=... option
+#------------------------------------------------------------------------
+
+if test "${prefix}" = "NONE"; then
+    prefix="$TCL_PREFIX"
+fi
+if test "${exec_prefix}" = "NONE"; then
+    exec_prefix=$prefix
+fi
+# Make sure srcdir is fully qualified!
+srcdir="`cd "$srcdir" ; pwd`"
+TK_SRC_DIR="`cd "$srcdir"/..; pwd`"
+
+#------------------------------------------------------------------------
+# Compress and/or soft link the manpages?
+#------------------------------------------------------------------------
+
+SC_CONFIG_MANPAGES
+
+#------------------------------------------------------------------------
+# Standard compiler checks
+#------------------------------------------------------------------------
+
+# If the user did not set CFLAGS, set it now to keep
+# the AC_PROG_CC macro from adding "-g -O2".
+if test "${CFLAGS+set}" != "set" ; then
+    CFLAGS=""
+fi
+
+AC_PROG_CC
+AC_C_INLINE
+
+#--------------------------------------------------------------------
+# Supply a substitute for stdlib.h if it doesn't define strtol,
+# strtoul, or strtod (which it doesn't in some versions of SunOS).
+#--------------------------------------------------------------------
+
+AC_CHECK_HEADER(stdlib.h, tk_ok=1, tk_ok=0)
+AC_EGREP_HEADER(strtol, stdlib.h, , tk_ok=0)
+AC_EGREP_HEADER(strtoul, stdlib.h, , tk_ok=0)
+AC_EGREP_HEADER(strtod, stdlib.h, , tk_ok=0)
+if test $tk_ok = 0; then
+    AC_DEFINE(NO_STDLIB_H, 1, [Do we have <stdlib.h>?])
+fi
+
+#------------------------------------------------------------------------
+# If we're using GCC, see if the compiler understands -pipe.  If so, use it.
+# It makes compiling go faster.  (This is only a performance feature.)
+#------------------------------------------------------------------------
+
+if test -z "$no_pipe" && test -n "$GCC"; then
+    AC_CACHE_CHECK([if the compiler understands -pipe],
+	tcl_cv_cc_pipe, [
+	hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -pipe"
+	AC_TRY_COMPILE(,, tcl_cv_cc_pipe=yes, tcl_cv_cc_pipe=no)
+	CFLAGS=$hold_cflags])
+    if test $tcl_cv_cc_pipe = yes; then
+	CFLAGS="$CFLAGS -pipe"
+    fi
+fi
+
+#------------------------------------------------------------------------
+# Threads support - this auto-enables if Tcl was compiled threaded
+#------------------------------------------------------------------------
+
+SC_ENABLE_THREADS
+
+# Add the threads support libraries
+LIBS="$LIBS$THREADS_LIBS"
+
+SC_ENABLE_SHARED
+
+#--------------------------------------------------------------------
+# The statements below define a collection of compile flags.  This
+# macro depends on the value of SHARED_BUILD, and should be called
+# after SC_ENABLE_SHARED checks the configure switches.
+#--------------------------------------------------------------------
+
+SC_CONFIG_CFLAGS
+
+SC_ENABLE_SYMBOLS
+
+#--------------------------------------------------------------------
+#	Detect what compiler flags to set for 64-bit support.
+#--------------------------------------------------------------------
+
+SC_TCL_EARLY_FLAGS
+
+SC_TCL_64BIT_FLAGS
+
+#--------------------------------------------------------------------
+#	Check endianness because we can optimize some operations
+#--------------------------------------------------------------------
+
+AC_C_BIGENDIAN
+
+#------------------------------------------------------------------------
+# If Tcl and Tk are installed in different places, adjust the library
+# search path to reflect this.
+#------------------------------------------------------------------------
+
+LIB_RUNTIME_DIR='$(libdir)'
+
+if test "$TCL_EXEC_PREFIX" != "$exec_prefix"; then
+    LIB_RUNTIME_DIR="${LIB_RUNTIME_DIR}:${TCL_EXEC_PREFIX}/lib"
+fi
+
+if test "$TCL_PREFIX" != "$prefix"; then
+    AC_MSG_WARN([
+        Different --prefix selected for Tk and Tcl!
+        [[package require Tk]] may not work correctly in tclsh.])
+fi
+
+#--------------------------------------------------------------------
+#	Include sys/select.h if it exists and if it supplies things
+#	that appear to be useful and aren't already in sys/types.h.
+#	This appears to be true only on the RS/6000 under AIX.  Some
+#	systems like OSF/1 have a sys/select.h that's of no use, and
+#	other systems like SCO UNIX have a sys/select.h that's
+#	pernicious.  If "fd_set" isn't defined anywhere then set a
+#	special flag.
+#--------------------------------------------------------------------
+
+AC_CACHE_CHECK([for fd_set in sys/types], tcl_cv_type_fd_set, [
+    AC_TRY_COMPILE([#include <sys/types.h>],[fd_set readMask, writeMask;],
+	tcl_cv_type_fd_set=yes, tcl_cv_type_fd_set=no)])
+tk_ok=$tcl_cv_type_fd_set
+if test $tk_ok = no; then
+    AC_CACHE_CHECK([for fd_mask in sys/select], tcl_cv_grep_fd_mask, [
+	AC_EGREP_HEADER(fd_mask, sys/select.h,
+	     tcl_cv_grep_fd_mask=present, tcl_cv_grep_fd_mask=missing)])
+    if test $tcl_cv_grep_fd_mask = present; then
+	AC_DEFINE(HAVE_SYS_SELECT_H, 1, [Should we include <sys/select.h>?])
+	tk_ok=yes
+    fi
+fi
+if test $tk_ok = no; then
+    AC_DEFINE(NO_FD_SET, 1, [Do we have fd_set?])
+fi
+
+#------------------------------------------------------------------------------
+#       Find out all about time handling differences.
+#------------------------------------------------------------------------------
+
+AC_CHECK_HEADERS(sys/time.h)
+AC_HEADER_TIME
+
+#--------------------------------------------------------------------
+#	Under Solaris 2.4, strtod returns the wrong value for the
+#	terminating character under some conditions.  Check for this
+#	and if the problem exists use a substitute procedure
+#	"fixstrtod" (provided by Tcl) that corrects the error.
+#--------------------------------------------------------------------
+
+SC_BUGGY_STRTOD
+
+#--------------------------------------------------------------------
+#	Check for various typedefs and provide substitutes if
+#	they don't exist.
+#--------------------------------------------------------------------
+
+AC_TYPE_MODE_T
+AC_TYPE_PID_T
+AC_TYPE_SIZE_T
+AC_TYPE_UID_T
+
+AC_CHECK_TYPE([intptr_t], [
+    AC_DEFINE([HAVE_INTPTR_T], 1, [Do we have the intptr_t type?])], [
+    AC_CACHE_CHECK([for pointer-size signed integer type], tcl_cv_intptr_t, [
+    for tcl_cv_intptr_t in "int" "long" "long long" none; do
+	if test "$tcl_cv_intptr_t" != none; then
+	    AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT],
+		    [[sizeof (void *) <= sizeof ($tcl_cv_intptr_t)]])],
+		[tcl_ok=yes], [tcl_ok=no])
+	    test "$tcl_ok" = yes && break; fi
+    done])
+    if test "$tcl_cv_intptr_t" != none; then
+	AC_DEFINE_UNQUOTED([intptr_t], [$tcl_cv_intptr_t], [Signed integer
+	   type wide enough to hold a pointer.])
+    fi
+])
+AC_CHECK_TYPE([uintptr_t], [
+    AC_DEFINE([HAVE_UINTPTR_T], 1, [Do we have the uintptr_t type?])], [
+    AC_CACHE_CHECK([for pointer-size unsigned integer type], tcl_cv_uintptr_t, [
+    for tcl_cv_uintptr_t in "unsigned int" "unsigned long" "unsigned long long" \
+	    none; do
+	if test "$tcl_cv_uintptr_t" != none; then
+	    AC_COMPILE_IFELSE([AC_LANG_BOOL_COMPILE_TRY([AC_INCLUDES_DEFAULT],
+		    [[sizeof (void *) <= sizeof ($tcl_cv_uintptr_t)]])],
+		[tcl_ok=yes], [tcl_ok=no])
+	    test "$tcl_ok" = yes && break; fi
+    done])
+    if test "$tcl_cv_uintptr_t" != none; then
+	AC_DEFINE_UNQUOTED([uintptr_t], [$tcl_cv_uintptr_t], [Unsigned integer
+	   type wide enough to hold a pointer.])
+    fi
+])
+
+#-------------------------------------------
+#     In OS/390 struct pwd has no pw_gecos field
+#-------------------------------------------
+
+AC_CACHE_CHECK([pw_gecos in struct pwd], tcl_cv_pwd_pw_gecos, [
+    AC_TRY_COMPILE([#include <pwd.h>],
+	    [struct passwd pwd; pwd.pw_gecos;],
+	    tcl_cv_pwd_pw_gecos=yes, tcl_cv_pwd_pw_gecos=no)])
+if test $tcl_cv_pwd_pw_gecos = yes; then
+    AC_DEFINE(HAVE_PW_GECOS, 1, [Does struct password have a pw_gecos field?])
+fi
+
+#--------------------------------------------------------------------
+#	On Mac OS X, we can build either with X11 or with Aqua
+#--------------------------------------------------------------------
+
+if test "`uname -s`" = "Darwin" ; then
+    AC_MSG_CHECKING([whether to use Aqua])
+    AC_ARG_ENABLE(aqua,
+	AC_HELP_STRING([--enable-aqua=yes|no],
+	    [use Aqua windowingsystem on Mac OS X (default: no)]),
+	[tk_aqua=$enableval], [tk_aqua=no])
+    if test $tk_aqua = yes -o $tk_aqua = cocoa; then
+	tk_aqua=yes
+	if test $tcl_corefoundation = no; then
+	    AC_MSG_WARN([Aqua can only be used when CoreFoundation is available])
+	    tk_aqua=no
+	fi
+	if test ! -d /System/Library/Frameworks/Cocoa.framework; then
+	    AC_MSG_WARN([Aqua can only be used when Cocoa is available])
+	    tk_aqua=no
+	fi
+	if test "`uname -r | awk -F. '{print [$]1}'`" -lt 9; then
+	    AC_MSG_WARN([Aqua requires Mac OS X 10.5 or later])
+	    tk_aqua=no
+	fi
+    fi
+    AC_MSG_RESULT([$tk_aqua])
+    if test "$fat_32_64" = yes; then
+	if test $tk_aqua = no; then
+	    AC_CACHE_CHECK([for 64-bit X11], tcl_cv_lib_x11_64, [
+		for v in CFLAGS CPPFLAGS LDFLAGS; do
+		    eval 'hold_'$v'="$'$v'";'$v'="`echo "$'$v' "|sed -e "s/-arch ppc / /g" -e "s/-arch i386 / /g"`"'
+		done
+		CPPFLAGS="$CPPFLAGS -I/usr/X11R6/include"
+		LDFLAGS="$LDFLAGS -L/usr/X11R6/lib -lX11"
+		AC_TRY_LINK([#include <X11/Xlib.h>], [XrmInitialize();],
+		    tcl_cv_lib_x11_64=yes, tcl_cv_lib_x11_64=no)
+		for v in CFLAGS CPPFLAGS LDFLAGS; do
+		    eval $v'="$hold_'$v'"'
+		done])
+	fi
+	# remove 64-bit arch flags from CFLAGS et al. for combined 32 & 64 bit
+	# fat builds if configuration does not support 64-bit.
+	if test "$tcl_cv_lib_x11_64" = no; then
+	    AC_MSG_NOTICE([Removing 64-bit architectures from compiler & linker flags])
+	    for v in CFLAGS CPPFLAGS LDFLAGS; do
+		eval $v'="`echo "$'$v' "|sed -e "s/-arch ppc64 / /g" -e "s/-arch x86_64 / /g"`"'
+	    done
+	fi
+    fi
+    if test $tk_aqua = no; then
+	# check if weak linking whole libraries is possible.
+	AC_CACHE_CHECK([if ld accepts -weak-l flag], tcl_cv_ld_weak_l, [
+	    hold_ldflags=$LDFLAGS
+	    LDFLAGS="$LDFLAGS -Wl,-weak-lm"
+	    AC_TRY_LINK([#include <math.h>], [double f = sin(1.0);],
+		tcl_cv_ld_weak_l=yes, tcl_cv_ld_weak_l=no)
+	    LDFLAGS=$hold_ldflags])
+    fi
+    AC_CHECK_HEADERS(AvailabilityMacros.h)
+    if test "$ac_cv_header_AvailabilityMacros_h" = yes; then
+	AC_CACHE_CHECK([if weak import is available], tcl_cv_cc_weak_import, [
+	    hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
+	    AC_TRY_LINK([
+		    #ifdef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
+		    #if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1020
+		    #error __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1020
+		    #endif
+		    #elif MAC_OS_X_VERSION_MIN_REQUIRED < 1020
+		    #error MAC_OS_X_VERSION_MIN_REQUIRED < 1020
+		    #endif
+		    int rand(void) __attribute__((weak_import));
+		], [rand();],
+		tcl_cv_cc_weak_import=yes, tcl_cv_cc_weak_import=no)
+	    CFLAGS=$hold_cflags])
+	if test $tcl_cv_cc_weak_import = yes; then
+	    AC_DEFINE(HAVE_WEAK_IMPORT, 1, [Is weak import available?])
+	fi
+	AC_CACHE_CHECK([if Darwin SUSv3 extensions are available],
+	    tcl_cv_cc_darwin_c_source, [
+	    hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
+	    AC_TRY_COMPILE([
+		    #ifdef __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__
+		    #if __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1050
+		    #error __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1050
+		    #endif
+		    #elif MAC_OS_X_VERSION_MIN_REQUIRED < 1050
+		    #error MAC_OS_X_VERSION_MIN_REQUIRED < 1050
+		    #endif
+		    #define _DARWIN_C_SOURCE 1
+		    #include <sys/cdefs.h>
+		],,tcl_cv_cc_darwin_c_source=yes, tcl_cv_cc_darwin_c_source=no)
+	    CFLAGS=$hold_cflags])
+	if test $tcl_cv_cc_darwin_c_source = yes; then
+	    AC_DEFINE(_DARWIN_C_SOURCE, 1,
+		    [Are Darwin SUSv3 extensions available?])
+	fi
+    fi
+else
+    tk_aqua=no
+fi
+
+if test $tk_aqua = yes; then
+    AC_DEFINE(MAC_OSX_TK, 1, [Are we building TkAqua?])
+    LIBS="$LIBS -framework Cocoa -framework Carbon -framework IOKit"
+    EXTRA_CC_SWITCHES='-std=gnu99 -x objective-c'
+    TK_WINDOWINGSYSTEM=AQUA
+    if test -n "${enable_symbols}" -a "${enable_symbols}" != no; then
+        AC_DEFINE(TK_MAC_DEBUG, 1, [Are TkAqua debug messages enabled?])
+    fi
+else
+    #--------------------------------------------------------------------
+    #	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.
+    #--------------------------------------------------------------------
+
+    SC_PATH_X
+    TK_WINDOWINGSYSTEM=X11
+fi
+
+#--------------------------------------------------------------------
+#	Various manipulations on the search path used at runtime to
+#	find shared libraries:
+#	1. If the X library binaries are in a non-standard directory,
+#	   add the X library location into that search path.
+#	2. On systems such as AIX and Ultrix that use "-L" as the
+#	   search path option, colons cannot be used to separate
+#	   directories from each other. Change colons to " -L".
+#	3. Create two sets of search flags, one for use in cc lines
+#	   and the other for when the linker is invoked directly.  In
+#	   the second case, '-Wl,' must be stripped off and commas must
+#	   be replaced by spaces.
+#--------------------------------------------------------------------
+
+if test "x${x_libraries}" != "x"; then
+  if test "x${x_libraries}" != "xNONE"; then
+    LIB_RUNTIME_DIR="${LIB_RUNTIME_DIR}:${x_libraries}"
+  fi
+fi
+if test "${TCL_LD_SEARCH_FLAGS}" = '-L${LIB_RUNTIME_DIR}'; then
+    LIB_RUNTIME_DIR=`echo ${LIB_RUNTIME_DIR} |sed -e 's/:/ -L/g'`
+fi
+
+#--------------------------------------------------------------------
+#	Check for the existence of various libraries.  The order here
+#	is important, so that then end up in the right order in the
+#	command line generated by make.  The -lsocket and -lnsl libraries
+#	require a couple of special tricks:
+#	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.
+#--------------------------------------------------------------------
+
+if test $tk_aqua = no; then
+    AC_CHECK_LIB(Xbsd, main, [LIBS="$LIBS -lXbsd"])
+fi
+
+#--------------------------------------------------------------------
+# One more check related to the X libraries.  The standard releases
+# of Ultrix don't support the "xauth" mechanism, so send won't work
+# unless TK_NO_SECURITY is defined.  However, there are usually copies
+# of the MIT X server available as well, which do support xauth.
+# Check for the MIT stuff and use it if it exists.
+#
+# Note: can't use ac_check_lib macro (at least, not in Autoconf 2.1)
+# because it can't deal with the "-" in the library name.
+#--------------------------------------------------------------------
+
+if test -d /usr/include/mit -a $tk_aqua = no; then
+    AC_MSG_CHECKING([MIT X libraries])
+    tk_oldCFlags=$CFLAGS
+    CFLAGS="$CFLAGS -I/usr/include/mit"
+    tk_oldLibs=$LIBS
+    LIBS="$LIBS -lX11-mit"
+    AC_TRY_LINK([
+	#include <X11/Xlib.h>
+    ], [
+	XOpenDisplay(0);
+    ], [
+	AC_MSG_RESULT([yes])
+	XLIBSW="-lX11-mit"
+	XINCLUDES="-I/usr/include/mit"
+    ], AC_MSG_RESULT([no]))
+    CFLAGS=$tk_oldCFlags
+    LIBS=$tk_oldLibs
+fi
+
+#--------------------------------------------------------------------
+#	Check for freetype / fontconfig / Xft support.
+#--------------------------------------------------------------------
+
+if test $tk_aqua = no; then
+    AC_MSG_CHECKING([whether to use xft])
+    AC_ARG_ENABLE(xft,
+	AC_HELP_STRING([--enable-xft],
+	    [use freetype/fontconfig/xft (default: on)]),
+	[enable_xft=$enableval], [enable_xft="default"])
+    XFT_CFLAGS=""
+    XFT_LIBS=""
+    if test "$enable_xft" = "no" ; then
+	AC_MSG_RESULT([$enable_xft])
+    else
+	found_xft="yes"
+	dnl make sure package configurator (xft-config or pkg-config
+	dnl says that xft is present.
+	XFT_CFLAGS=`xft-config --cflags 2>/dev/null` || found_xft="no"
+	XFT_LIBS=`xft-config --libs 2>/dev/null` || found_xft="no"
+	if test "$found_xft" = "no" ; then
+	    found_xft=yes
+	    XFT_CFLAGS=`pkg-config --cflags xft 2>/dev/null` || found_xft="no"
+	    XFT_LIBS=`pkg-config --libs xft 2>/dev/null` || found_xft="no"
+	fi
+	AC_MSG_RESULT([$found_xft])
+	dnl make sure that compiling against Xft header file doesn't bomb
+	if test "$found_xft" = "yes" ; then
+	    tk_oldCFlags=$CFLAGS
+	    CFLAGS="$CFLAGS $XINCLUDES $XFT_CFLAGS"
+	    tk_oldLibs=$LIBS
+	    LIBS="$tk_oldLIBS $XFT_LIBS $XLIBSW"
+	    AC_CHECK_HEADER(X11/Xft/Xft.h, [], [
+		found_xft=no
+	    ],[#include <X11/Xlib.h>])
+	    CFLAGS=$tk_oldCFlags
+	    LIBS=$tk_oldLibs
+	fi
+	dnl make sure that linking against Xft libraries finds freetype
+	if test "$found_xft" = "yes" ; then
+	    tk_oldCFlags=$CFLAGS
+	    CFLAGS="$CFLAGS $XINCLUDES $XFT_CFLAGS"
+	    tk_oldLibs=$LIBS
+	    LIBS="$tk_oldLIBS $XFT_LIBS $XLIBSW"
+	    AC_CHECK_LIB(Xft, XftFontOpen, [], [
+		found_xft=no
+	    ])
+	    CFLAGS=$tk_oldCFlags
+	    LIBS=$tk_oldLibs
+	fi
+	dnl make sure that linking against fontconfig libraries finds Fc* symbols
+	if test "$found_xft" = "yes" ; then
+	    tk_oldCFlags=$CFLAGS
+	    CFLAGS="$CFLAGS $XINCLUDES $XFT_CFLAGS"
+	    tk_oldLibs=$LIBS
+	    LIBS="$tk_oldLIBS $XFT_LIBS $XLIBSW -lfontconfig"
+	    AC_CHECK_LIB(fontconfig, FcFontSort, [
+		XFT_LIBS="$XFT_LIBS -lfontconfig"
+	    ], [])
+	    CFLAGS=$tk_oldCFlags
+	    LIBS=$tk_oldLibs
+	fi
+	dnl print a warning if xft is unusable and was specifically requested
+	if test "$found_xft" = "no" ; then
+	    if test "$enable_xft" = "yes" ; then
+		AC_MSG_WARN([Can't find xft configuration, or xft is unusable])
+	    fi
+	    enable_xft=no
+	    XFT_CFLAGS=""
+	    XFT_LIBS=""
+	else
+            enable_xft=yes
+	fi
+    fi
+    if test $enable_xft = "yes" ; then
+	UNIX_FONT_OBJS=tkUnixRFont.o
+	AC_DEFINE(HAVE_XFT, 1, [Have we turned on XFT (antialiased fonts)?])
+    else
+	UNIX_FONT_OBJS=tkUnixFont.o
+    fi
+    AC_SUBST(XFT_CFLAGS)
+    AC_SUBST(XFT_LIBS)
+    AC_SUBST(UNIX_FONT_OBJS)
+fi
+
+#--------------------------------------------------------------------
+#	Check for XkbKeycodeToKeysym.
+#--------------------------------------------------------------------
+
+if test $tk_aqua = no; then
+    tk_oldCFlags=$CFLAGS
+    tk_oldLibs=$LIBS
+    CFLAGS="$CFLAGS $XINCLUDES"
+    LIBS="$LIBS $XLIBSW"
+    AC_CHECK_HEADER(X11/XKBlib.h, [
+	xkblib_header_found=yes
+    ], [
+	xkblib_header_found=no
+    ], [#include <X11/Xlib.h>])
+    if test $xkblib_header_found = "yes" ; then
+	AC_CHECK_LIB(X11, XkbKeycodeToKeysym, [
+	    xkbkeycodetokeysym_found=yes
+	], [
+	    xkbkeycodetokeysym_found=no
+	])
+    else
+	xkbkeycodetokeysym_found=no
+    fi
+    if test $xkbkeycodetokeysym_found = "yes" ; then
+	AC_DEFINE(HAVE_XKBKEYCODETOKEYSYM, 1, [Do we have XkbKeycodeToKeysym?])
+    fi
+    CFLAGS=$tk_oldCFlags
+    LIBS=$tk_oldLibs
+fi
+
+#--------------------------------------------------------------------
+# Check whether XKeycodeToKeysym is deprecated in X11 headers.
+#--------------------------------------------------------------------
+
+if test $tk_aqua = no && test "$GCC" = yes; then
+    AC_MSG_CHECKING([whether XKeycodeToKeysym is deprecated])
+    tk_oldCFlags=$CFLAGS
+    CFLAGS="$CFLAGS -Werror"
+    AC_TRY_LINK([
+	#include <X11/Xlib.h>
+    ], [
+	XKeycodeToKeysym(0,0,0);
+    ], [
+	AC_MSG_RESULT([no])
+    ], [
+    AC_MSG_RESULT([yes])
+	AC_DEFINE(XKEYCODETOKEYSYM_IS_DEPRECATED, 1, [Is XKeycodeToKeysym deprecated?])
+	])
+    CFLAGS=$tk_oldCFlags
+fi
+
+#--------------------------------------------------------------------
+# XXX Do this last.
+# It might modify XLIBSW which could affect other tests.
+#
+# Check whether the header and library for the XScreenSaver
+# extension are available, and set HAVE_XSS if so.
+# XScreenSaver is needed for Tk_GetUserInactiveTime().
+#--------------------------------------------------------------------
+
+if test $tk_aqua = no; then
+    tk_oldCFlags=$CFLAGS
+    CFLAGS="$CFLAGS $XINCLUDES"
+    tk_oldLibs=$LIBS
+    LIBS="$tk_oldLibs $XLIBSW"
+    xss_header_found=no
+    xss_lib_found=no
+    AC_MSG_CHECKING([whether to try to use XScreenSaver])
+    AC_ARG_ENABLE(xss,
+	AC_HELP_STRING([--enable-xss],
+	    [use XScreenSaver for activity timer (default: on)]),
+	[enable_xss=$enableval], [enable_xss=yes])
+    if test "$enable_xss" = "no" ; then
+	AC_MSG_RESULT([$enable_xss])
+    else
+	AC_MSG_RESULT([$enable_xss])
+	AC_CHECK_HEADER(X11/extensions/scrnsaver.h, [
+	    xss_header_found=yes
+	],,[#include <X11/Xlib.h>])
+	AC_CHECK_FUNC(XScreenSaverQueryInfo,,[
+	    AC_CHECK_LIB(Xext, XScreenSaverQueryInfo, [
+		XLIBSW="$XLIBSW -lXext"
+		xss_lib_found=yes
+	    ], [
+		AC_CHECK_LIB(Xss, XScreenSaverQueryInfo, [
+		    if test "$tcl_cv_ld_weak_l" = yes; then
+			# On Darwin, weak link libXss if possible,
+			# as it is only available on Tiger or later.
+			XLIBSW="$XLIBSW -Wl,-weak-lXss -lXext"
+		    else
+			XLIBSW="$XLIBSW -lXss -lXext"
+		    fi
+		    xss_lib_found=yes
+		],, -lXext)
+	    ])
+	])
+    fi
+    if test $enable_xss = yes -a $xss_lib_found = yes -a $xss_header_found = yes; then
+	AC_DEFINE(HAVE_XSS, 1, [Is XScreenSaver available?])
+    fi
+    CFLAGS=$tk_oldCFlags
+    LIBS=$tk_oldLibs
+fi
+
+#--------------------------------------------------------------------
+#	Figure out whether "char" is unsigned.  If so, set a
+#	#define for __CHAR_UNSIGNED__.
+#--------------------------------------------------------------------
+
+AC_C_CHAR_UNSIGNED
+
+#--------------------------------------------------------------------
+#	The statements below define a collection of symbols related to
+#	building libtk as a shared library instead of a static library.
+#--------------------------------------------------------------------
+
+eval eval "TK_UNSHARED_LIB_SUFFIX=${UNSHARED_LIB_SUFFIX}"
+eval eval "TK_SHARED_LIB_SUFFIX=${SHARED_LIB_SUFFIX}"
+eval "TK_LIB_FILE=libtk${LIB_SUFFIX}"
+
+# tkConfig.sh needs a version of the _LIB_SUFFIX that has been eval'ed
+# since on some platforms TK_LIB_FILE contains shell escapes.
+
+eval "TK_LIB_FILE=${TK_LIB_FILE}"
+
+if test "${SHARED_BUILD}" = "1" -a "${SHLIB_SUFFIX}" != ""; then
+    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} \${TCL_STUB_LIB_SPEC}"
+    TCL_STUB_FLAGS="-DUSE_TCL_STUBS"
+fi
+
+TK_LIBRARY='$(prefix)/lib/tk$(VERSION)'
+PRIVATE_INCLUDE_DIR='$(includedir)'
+HTML_DIR='$(DISTDIR)/html'
+TK_PKG_DIR='tk$(VERSION)'
+TK_RSRC_FILE='tk$(VERSION).rsrc'
+WISH_RSRC_FILE='wish$(VERSION).rsrc'
+
+# Note:  in the following variable, it's important to use the absolute
+# path name of the Tcl directory rather than "..":  this is because
+# AIX remembers this path and will attempt to use it at run-time to look
+# up the Tcl library.
+
+if test "`uname -s`" = "Darwin" ; then
+    SC_ENABLE_FRAMEWORK
+    TK_SHLIB_LD_EXTRAS="-compatibility_version ${TK_VERSION} -current_version ${TK_VERSION}`echo ${TK_PATCH_LEVEL} | awk ['{match($0, "\\\.[0-9]+"); print substr($0,RSTART,RLENGTH)}']`"
+    TK_SHLIB_LD_EXTRAS="${TK_SHLIB_LD_EXTRAS}"' -install_name "${DYLIB_INSTALL_DIR}/${TK_LIB_FILE}" -unexported_symbols_list $$(f=$(TK_LIB_FILE).E && nm -gp tkMacOSX*.o 2>/dev/null | awk "/^[[0-9a-f]]+ . \.objc/ {print \$$3}" > $$f && nm -gjp "$(TCL_BIN_DIR)"/$(TCL_STUB_LIB_FILE) | grep ^_[[^_]] >> $$f && echo $$f)'
+    echo "$LDFLAGS " | grep -q -- '-prebind ' && TK_SHLIB_LD_EXTRAS="${TK_SHLIB_LD_EXTRAS}"' -seg1addr 0xb000000'
+    TK_SHLIB_LD_EXTRAS="${TK_SHLIB_LD_EXTRAS}"' -sectcreate __TEXT __info_plist Tk-Info.plist'
+    EXTRA_WISH_LIBS='-sectcreate __TEXT __info_plist Wish-Info.plist'
+    EXTRA_APP_CC_SWITCHES="${EXTRA_APP_CC_SWITCHES}"' -mdynamic-no-pic'
+    AC_CONFIG_FILES([Tk-Info.plist:../macosx/Tk-Info.plist.in Wish-Info.plist:../macosx/Wish-Info.plist.in])
+    for l in ${LOCALES}; do CFBUNDLELOCALIZATIONS="${CFBUNDLELOCALIZATIONS}<string>$l</string>"; done
+    TK_YEAR="`date +%Y`"
+fi
+
+if test "$FRAMEWORK_BUILD" = "1" ; then
+    AC_DEFINE(TK_FRAMEWORK, 1, [Is Tk built as a framework?])
+    # Construct a fake local framework structure to make linking with
+    # '-framework Tk' and running of tktest work
+    AC_CONFIG_COMMANDS([Tk.framework], [n=Tk &&
+        f=$n.framework && v=Versions/$VERSION &&
+        rm -rf $f && mkdir -p $f/$v/Resources &&
+        ln -s $v/$n $v/Resources $f && ln -s ../../../$n $f/$v &&
+        ln -s ../../../../$n-Info.plist $f/$v/Resources/Info.plist &&
+        if test $tk_aqua = yes; then ln -s ../../../../$n.rsrc $f/$v/Resources; fi &&
+        unset n f v
+    ], VERSION=${TK_VERSION} && tk_aqua=${tk_aqua})
+    LD_LIBRARY_PATH_VAR="DYLD_FRAMEWORK_PATH"
+    if test "${libdir}" = '${exec_prefix}/lib'; then
+        # override libdir default
+        libdir="/Library/Frameworks"
+    fi
+    TK_LIB_FILE="Tk"
+    TK_LIB_FLAG="-framework Tk"
+    TK_BUILD_LIB_SPEC="-F`pwd | sed -e 's/ /\\\\ /g'` -framework Tk"
+    TK_LIB_SPEC="-F${libdir} -framework Tk"
+    libdir="${libdir}/Tk.framework/Versions/\${VERSION}"
+    TK_LIBRARY="${libdir}/Resources/Scripts"
+    TK_PKG_DIR="Resources/Scripts"
+    TK_RSRC_FILE="Tk.rsrc"
+    WISH_RSRC_FILE="Wish.rsrc"
+    includedir="${libdir}/Headers"
+    PRIVATE_INCLUDE_DIR="${libdir}/PrivateHeaders"
+    HTML_DIR="${libdir}/Resources/Documentation/Reference/Tk"
+    EXTRA_INSTALL="install-private-headers html-tk"
+    EXTRA_BUILD_HTML='@ln -fs contents.htm "$(HTML_INSTALL_DIR)"/TkTOC.html'
+    EXTRA_INSTALL_BINARIES='@echo "Installing Info.plist to $(LIB_INSTALL_DIR)/Resources/" && $(INSTALL_DATA_DIR) "$(LIB_INSTALL_DIR)/Resources" && $(INSTALL_DATA) Tk-Info.plist "$(LIB_INSTALL_DIR)/Resources/Info.plist"'
+    EXTRA_INSTALL_BINARIES="$EXTRA_INSTALL_BINARIES"' && echo "Installing license.terms to $(LIB_INSTALL_DIR)/Resources/" && $(INSTALL_DATA) "$(TOP_DIR)/license.terms" "$(LIB_INSTALL_DIR)/Resources"'
+    if test $tk_aqua = yes; then
+	EXTRA_INSTALL_BINARIES="$EXTRA_INSTALL_BINARIES"' && echo "Installing Images to $(LIB_INSTALL_DIR)/Resources/" && $(INSTALL_DATA_DIR) "$(LIB_INSTALL_DIR)/Resources" && for i in Tk.tiff Tk.icns; do $(INSTALL_DATA) "$(MAC_OSX_DIR)/$$i" "$(LIB_INSTALL_DIR)/Resources"; done'
+	EXTRA_INSTALL_BINARIES="$EXTRA_INSTALL_BINARIES"' && echo "Installing wish$(VERSION) script to $(INSTALL_ROOT)/'"${bindir}"'/" && $(INSTALL_DATA_DIR) "$(INSTALL_ROOT)/'"${bindir}"'" && printf > "$(INSTALL_ROOT)/'"${bindir}"'/wish$(VERSION)" "#!/bin/sh\n\"\$$(dirname \$$0)'"`eval d="${bindir}"; echo "$d" | sed -e 's#/[^/][^/]*#/..#g'`"'$(bindir)/Wish\" \"\$$@\"" && chmod +x "$(INSTALL_ROOT)/'"${bindir}"'/wish$(VERSION)"'
+	bindir="${libdir}/Resources/Wish.app/Contents/MacOS"
+	EXTRA_INSTALL_BINARIES="$EXTRA_INSTALL_BINARIES"' && echo "Installing Info.plist to $(BIN_INSTALL_DIR)/.." && $(INSTALL_DATA) Wish-Info.plist "$(BIN_INSTALL_DIR)/../Info.plist" && mv -f "$(BIN_INSTALL_DIR)/wish$(VERSION)" "$(BIN_INSTALL_DIR)/Wish"'
+	EXTRA_INSTALL_BINARIES="$EXTRA_INSTALL_BINARIES"' && echo "Installing Wish.icns to $(BIN_INSTALL_DIR)/../Resources" && $(INSTALL_DATA_DIR) "$(BIN_INSTALL_DIR)/../Resources"'
+	EXTRA_INSTALL_BINARIES="$EXTRA_INSTALL_BINARIES"' && $(INSTALL_DATA) "$(MAC_OSX_DIR)/Tk.icns" "$(BIN_INSTALL_DIR)/../Resources/Wish.icns"'
+	EXTRA_INSTALL_BINARIES="$EXTRA_INSTALL_BINARIES"' && echo "Installing Wish.sdef to $(BIN_INSTALL_DIR)/../Resources" && $(INSTALL_DATA) "$(MAC_OSX_DIR)/Wish.sdef" "$(BIN_INSTALL_DIR)/../Resources"'
+    fi
+    EXTRA_INSTALL_BINARIES="$EXTRA_INSTALL_BINARIES"' && echo "Finalizing Tk.framework" && rm -f "$(LIB_INSTALL_DIR)/../Current" && ln -s "$(VERSION)" "$(LIB_INSTALL_DIR)/../Current" && for f in "$(LIB_FILE)" tkConfig.sh Resources Headers PrivateHeaders; do rm -f "$(LIB_INSTALL_DIR)/../../$$f" && ln -s "Versions/Current/$$f" "$(LIB_INSTALL_DIR)/../.."; done && f="$(STUB_LIB_FILE)" && rm -f "$(LIB_INSTALL_DIR)/../../$$f" && ln -s "Versions/$(VERSION)/$$f" "$(LIB_INSTALL_DIR)/../.."'
+    # Don't use AC_DEFINE for the following as the framework version define
+    # needs to go into the Makefile even when using autoheader, so that we
+    # can pick up a potential make override of VERSION. Also, don't put this
+    # into CFLAGS as it should not go into tkConfig.sh
+    EXTRA_CC_SWITCHES="$EXTRA_CC_SWITCHES"' -DTK_FRAMEWORK_VERSION=\"$(VERSION)\"'
+else
+    if test $tk_aqua = yes; then
+        EXTRA_INSTALL_BINARIES='@echo "Installing Images to $(LIB_INSTALL_DIR)/" && $(INSTALL_DATA_DIR) "$(LIB_INSTALL_DIR)" && for i in Tk.tiff Tk.icns; do $(INSTALL_DATA) "$(MAC_OSX_DIR)/$$i" "$(LIB_INSTALL_DIR)"; done'
+    fi
+    # libdir must be a fully qualified path and not ${exec_prefix}/lib
+    eval libdir="$libdir"
+    if test "${ac_cv_cygwin}" = "yes" -a "$SHARED_BUILD" = "1"; then
+	TK_LIB_FLAG="-ltk`echo ${TK_VERSION} | tr -d .`"
+	TK_BUILD_LIB_SPEC="-L\$(TOP_DIR)/win ${TK_LIB_FLAG}"
+    else
+	if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then
+	    TK_LIB_FLAG="-ltk${TK_VERSION}"
+	else
+	    TK_LIB_FLAG="-ltk`echo ${TK_VERSION} | tr -d .`"
+	fi
+	TK_BUILD_LIB_SPEC="-L`pwd | sed -e 's/ /\\\\ /g'` ${TK_LIB_FLAG}"
+    fi
+    TK_LIB_SPEC="-L${libdir} ${TK_LIB_FLAG}"
+fi
+
+#--------------------------------------------------------------------
+#       The statements below define various symbols relating to Tk
+#       stub support.
+#--------------------------------------------------------------------
+
+# Replace ${VERSION} with contents of ${TK_VERSION}
+eval "TK_STUB_LIB_FILE=libtkstub${TK_UNSHARED_LIB_SUFFIX}"
+eval "TK_STUB_LIB_DIR=${libdir}"
+
+if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then
+    TK_STUB_LIB_FLAG="-ltkstub${TK_VERSION}"
+else
+    TK_STUB_LIB_FLAG="-ltkstub`echo ${TK_VERSION} | tr -d .`"
+fi
+
+TK_BUILD_STUB_LIB_SPEC="-L`pwd | sed -e 's/ /\\\\ /g'` ${TK_STUB_LIB_FLAG}"
+TK_STUB_LIB_SPEC="-L${TK_STUB_LIB_DIR} ${TK_STUB_LIB_FLAG}"
+TK_BUILD_STUB_LIB_PATH="`pwd`/${TK_STUB_LIB_FILE}"
+TK_STUB_LIB_PATH="${TK_STUB_LIB_DIR}/${TK_STUB_LIB_FILE}"
+
+# Install time header dir can be set via --includedir
+eval "TK_INCLUDE_SPEC=\"-I${includedir}\""
+
+#------------------------------------------------------------------------
+# tkConfig.sh refers to this by a different name
+#------------------------------------------------------------------------
+
+TK_SHARED_BUILD=${SHARED_BUILD}
+
+AC_SUBST(TK_VERSION)
+AC_SUBST(TK_MAJOR_VERSION)
+AC_SUBST(TK_MINOR_VERSION)
+AC_SUBST(TK_PATCH_LEVEL)
+AC_SUBST(TK_YEAR)
+
+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)
+AC_SUBST(TK_STUB_LIB_PATH)
+AC_SUBST(TK_INCLUDE_SPEC)
+AC_SUBST(TK_BUILD_STUB_LIB_SPEC)
+AC_SUBST(TK_BUILD_STUB_LIB_PATH)
+
+AC_SUBST(TK_SRC_DIR)
+
+AC_SUBST(TK_SHARED_BUILD)
+AC_SUBST(LD_LIBRARY_PATH_VAR)
+
+AC_SUBST(TK_BUILD_LIB_SPEC)
+
+AC_SUBST(TCL_STUB_FLAGS)
+AC_SUBST(XINCLUDES)
+AC_SUBST(XLIBSW)
+AC_SUBST(LOCALES)
+
+AC_SUBST(TK_WINDOWINGSYSTEM)
+AC_SUBST(TK_PKG_DIR)
+AC_SUBST(TK_LIBRARY)
+AC_SUBST(LIB_RUNTIME_DIR)
+AC_SUBST(PRIVATE_INCLUDE_DIR)
+AC_SUBST(HTML_DIR)
+
+AC_SUBST(EXTRA_CC_SWITCHES)
+AC_SUBST(EXTRA_APP_CC_SWITCHES)
+AC_SUBST(EXTRA_INSTALL)
+AC_SUBST(EXTRA_INSTALL_BINARIES)
+AC_SUBST(EXTRA_BUILD_HTML)
+AC_SUBST(EXTRA_WISH_LIBS)
+AC_SUBST(CFBUNDLELOCALIZATIONS)
+
+AC_SUBST(TK_RSRC_FILE)
+AC_SUBST(WISH_RSRC_FILE)
+AC_SUBST(LIB_RSRC_FILE)
+AC_SUBST(APP_RSRC_FILE)
+AC_SUBST(REZ)
+AC_SUBST(REZ_FLAGS)
+
+AC_CONFIG_FILES([
+    Makefile:../unix/Makefile.in
+    tkConfig.sh:../unix/tkConfig.sh.in
+    tk.pc:../unix/tk.pc.in
+])
+AC_OUTPUT
+
+dnl Local Variables:
+dnl mode: autoconf
+dnl End: