From e04beeacaa35802b78edc6dea6ec5fb78448ef1c Mon Sep 17 00:00:00 2001 From: wart Date: Wed, 16 Jun 1999 23:41:51 +0000 Subject: Reflects changes to tcl.m4 --- unix/aclocal.m4 | 2642 ++++++++++++++++++++++++++++--------------------------- 1 file changed, 1322 insertions(+), 1320 deletions(-) diff --git a/unix/aclocal.m4 b/unix/aclocal.m4 index 828dfd7..e580575 100644 --- a/unix/aclocal.m4 +++ b/unix/aclocal.m4 @@ -25,83 +25,83 @@ dnl PARTICULAR PURPOSE. # --with-tcl=... # # Defines the following vars: -# TCL_BIN_DIR Full path to the tclConfig.sh file +# 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 -# + # + # Ok, lets find the tcl configuration + # First, look for one uninstalled. + # the alternative search directory is invoked by --with-tcl + # -if test x"${no_tcl}" = x ; then - # we reset no_tcl in case something fails here - no_tcl=true - AC_ARG_WITH(tcl, [ --with-tcl directory containing tcl configuration (tclConfig.sh)], - with_tclconfig=${withval}) - AC_MSG_CHECKING([for Tcl configuration]) - AC_CACHE_VAL(ac_cv_c_tclconfig,[ + if test x"${no_tcl}" = x ; then + # we reset no_tcl in case something fails here + no_tcl=true + AC_ARG_WITH(tcl, [ --with-tcl directory containing tcl configuration (tclConfig.sh)], with_tclconfig=${withval}) + AC_MSG_CHECKING([for Tcl configuration]) + AC_CACHE_VAL(ac_cv_c_tclconfig,[ + + # First check to see if --with-tclconfig was specified. + if test x"${with_tclconfig}" != x ; then + if test -f "${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 - # First check to see if --with-tclconfig was specified. - if test x"${with_tclconfig}" != x ; then - if test -f "${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]) + # then check for a private Tcl installation + if test x"${ac_cv_c_tclconfig}" = x ; then + for i in \ + ../tcl \ + `ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \ + ../../tcl \ + `ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \ + ../../../tcl \ + `ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do + if test -f "$i/unix/tclConfig.sh" ; then + ac_cv_c_tclconfig=`(cd $i/unix; pwd)` + break + fi + done fi - fi - # then check for a private Tcl installation - if test x"${ac_cv_c_tclconfig}" = x ; then - for i in \ - ../tcl \ - `ls -dr ../tcl[[8-9]].[[0-9]]* 2>/dev/null` \ - ../../tcl \ - `ls -dr ../../tcl[[8-9]].[[0-9]]* 2>/dev/null` \ - ../../../tcl \ - `ls -dr ../../../tcl[[8-9]].[[0-9]]* 2>/dev/null` ; do - if test -f "$i/unix/tclConfig.sh" ; then + # check in a few common install locations + if test x"${ac_cv_c_tclconfig}" = x ; then + for i in `ls -d ${prefix}/lib 2>/dev/null` \ + `ls -d /usr/local/lib 2>/dev/null` ; do + if test -f "$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_tcliconfig}" = x ; then + for i in \ + ${srcdir}/../tcl \ + `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 $i/unix; pwd)` break fi - done - fi + done + fi + ]) - # check in a few common install locations if test x"${ac_cv_c_tclconfig}" = x ; then - for i in `ls -d ${prefix}/lib 2>/dev/null` \ - `ls -d /usr/local/lib 2>/dev/null` ; do - if test -f "$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_tcliconfig}" = x ; then - for i in \ - ${srcdir}/../tcl \ - `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 $i/unix; pwd)` - break - fi - done + TCL_BIN_DIR="# no Tcl configs found" + AC_MSG_WARN(Can't find Tcl configuration definitions) + exit 0 + else + no_tcl= + TCL_BIN_DIR=${ac_cv_c_tclconfig} + AC_MSG_RESULT(found $TCL_BIN_DIR/tclConfig.sh) fi - ]) - - if test x"${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 $TCL_BIN_DIR/tclConfig.sh) fi -fi ]) #------------------------------------------------------------------------ @@ -118,80 +118,80 @@ fi # --with-tk=... # # Defines the following vars: -# TK_BIN_DIR Full path to the tkConfig.sh file +# TK_BIN_DIR Full path to the directory containing +# the tkConfig.sh file #------------------------------------------------------------------------ AC_DEFUN(SC_PATH_TKCONFIG, [ -# -# Ok, lets find the tk configuration -# First, look for one uninstalled. -# the alternative search directory is invoked by --with-tk -# + # + # Ok, lets find the tk configuration + # First, look for one uninstalled. + # the alternative search directory is invoked by --with-tk + # -if test x"${no_tk}" = x ; then - # we reset no_tk in case something fails here - no_tk=true - AC_ARG_WITH(tk, [ --with-tk directory containing tk configuration (tkConfig.sh)], - with_tkconfig=${withval}) - AC_MSG_CHECKING([for Tk configuration]) - AC_CACHE_VAL(ac_cv_c_tkconfig,[ + if test x"${no_tk}" = x ; then + # we reset no_tk in case something fails here + no_tk=true + AC_ARG_WITH(tk, [ --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 + 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 - # First check to see if --with-tkconfig was specified. - if test x"${with_tkconfig}" != x ; then - if test -f "${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]) + # then check for a private Tk library + if test x"${ac_cv_c_tkconfig}" = x ; then + for i in \ + ../tk \ + `ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \ + ../../tk \ + `ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \ + ../../../tk \ + `ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do + if test -f "$i/unix/tkConfig.sh" ; then + ac_cv_c_tkconfig=`(cd $i/unix; pwd)` + break + fi + done + fi + # check in a few common install locations + if test x"${ac_cv_c_tkconfig}" = x ; then + for i in `ls -d ${prefix}/lib 2>/dev/null` \ + `ls -d /usr/local/lib 2>/dev/null` ; do + if test -f "$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 ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do + if test -f "$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 $TK_BIN_DIR/tkConfig.sh) + fi fi - fi - - # then check for a private Tk library - if test x"${ac_cv_c_tkconfig}" = x ; then - for i in \ - ../tk \ - `ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \ - ../../tk \ - `ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \ - ../../../tk \ - `ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do - if test -f "$i/unix/tkConfig.sh" ; then - ac_cv_c_tkconfig=`(cd $i/unix; pwd)` - break - fi - done - fi - # check in a few common install locations - if test x"${ac_cv_c_tkconfig}" = x ; then - for i in `ls -d ${prefix}/lib 2>/dev/null` \ - `ls -d /usr/local/lib 2>/dev/null` ; do - if test -f "$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 ${srcdir}/../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do - if test -f "$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 ]) @@ -207,18 +207,21 @@ fi # # Results: # -# Sets the following vars that should be in tclConfig.sh: +# Subst the following vars: +# TCL_BIN_DIR # TCL_SRC_DIR # TCL_LIB_FILE -# TCL_LIB_FLAG -# Does not defines the following vars: -# TCL_THREADS # #------------------------------------------------------------------------ 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]) . $TCL_BIN_DIR/tclConfig.sh + else + AC_MSG_RESULT([file not found]) fi # @@ -229,11 +232,9 @@ AC_DEFUN(SC_LOAD_TCLCONFIG, [ eval TCL_LIB_FILE=${TCL_LIB_FILE} eval TCL_LIB_FLAG=${TCL_LIB_FLAG} -# if test "x$TCL_THREADS" = "x"; then -# echo "Tcl not built with threads" -# else -# AC_DEFINE(TCL_THREADS) -# fi + AC_SUBST(TCL_BIN_DIR) + AC_SUBST(TCL_SRC_DIR) + AC_SUBST(TCL_LIB_FILE) ]) #------------------------------------------------------------------------ @@ -248,21 +249,23 @@ AC_DEFUN(SC_LOAD_TCLCONFIG, [ # # Results: # -# Subst's the following vars: -# TK_VERSION -# TK_DEFS -# TK_DBGX -# TK_LIBS -# TK_XINCLUDES -# TK_XLIBSW -# TK_BUILD_LIB_SPEC -# TK_LIB_SPEC +# Sets the following vars that should be in tkConfig.sh: +# TK_BIN_DIR #------------------------------------------------------------------------ AC_DEFUN(SC_LOAD_TKCONFIG, [ + AC_MSG_CHECKING([for existence of $TCLCONFIG]) + if test -f "$TK_BIN_DIR/tkConfig.sh" ; then - . $TK_BIN_DIR/tkConfig.sh + AC_MSG_CHECKING([loading $TK_BIN_DIR/tkConfig.sh]) + . $TK_BIN_DIR/tkConfig.sh + else + AC_MSG_RESULT([could not find $TK_BIN_DIR/tkConfig.sh]) fi + + AC_SUBST(TK_BIN_DIR) + AC_SUBST(TK_SRC_DIR) + AC_SUBST(TK_LIB_FILE) ]) #------------------------------------------------------------------------ @@ -278,7 +281,7 @@ AC_DEFUN(SC_LOAD_TKCONFIG, [ # Adds the following arguments to configure: # --enable-gcc # -# Subst's the following vars: +# Sets the following vars: # CC Command to use for the compiler #------------------------------------------------------------------------ @@ -286,10 +289,10 @@ AC_DEFUN(SC_ENABLE_GCC, [ AC_ARG_ENABLE(gcc, [ --enable-gcc allow use of gcc if available [--disable-gcc]], [ok=$enableval], [ok=no]) if test "$ok" = "yes"; then + CC=gcc AC_PROG_CC else CC=${CC-cc} - AC_SUBST(CC) fi ]) @@ -306,11 +309,12 @@ AC_DEFUN(SC_ENABLE_GCC, [ # Adds the following arguments to configure: # --enable-shared=yes|no # -# Subst's the following vars: -# SHARED_BUILD Value of 1 or 0 +# Defines the following vars: +# STATIC_BUILD Used for building import/export libraries +# on Windows. # -# May define the following vars: -# STATIC_BUILD (Not sure, but might only be used in Windows) +# Sets the following vars: +# SHARED_BUILD Value of 1 or 0 #------------------------------------------------------------------------ AC_DEFUN(SC_ENABLE_SHARED, [ @@ -334,8 +338,6 @@ AC_DEFUN(SC_ENABLE_SHARED, [ SHARED_BUILD=0 AC_DEFINE(STATIC_BUILD) fi - - AC_SUBST(SHARED_BUILD) ]) #------------------------------------------------------------------------ @@ -419,1280 +421,1280 @@ AC_DEFUN(SC_ENABLE_SYMBOLS, [ AC_ARG_ENABLE(symbols, [ --enable-symbols build with debugging symbols [--disable-symbols]], [tcl_ok=$enableval], [tcl_ok=no]) if test "$tcl_ok" = "yes"; then CFLAGS_DEFAULT="${CFLAGS_DEBUG}" - LD_FLAGS_DEFAULT="${LDFLAGS_DEBUG}" + LDFLAGS_DEFAULT="${LDFLAGS_DEBUG}" DBGX=g AC_MSG_RESULT([yes]) else CFLAGS_DEFAULT="${CFLAGS_OPTIMIZE}" - LD_FLAGS_DEFAULT="${LDFLAGS_OPTIMIZE}" + LDFLAGS_DEFAULT="${LDFLAGS_OPTIMIZE}" DBGX="" AC_MSG_RESULT([no]) fi ]) #-------------------------------------------------------------------- -# SC_SERIAL_PORT +# SC_CONFIG_CFLAGS # -# 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. +# Try to determine the proper flags to pass to the compiler +# for building shared libraries and other such nonsense. # # Arguments: # none -# +# # Results: # -# Defines only one of the following vars: -# USE_TERMIOS -# USE_TERMIO -# USE_SGTTY +# Defines 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. +# MAKE_LIB - Command to execute to build the Tcl library; +# differs depending on whether or not Tcl is being +# compiled as a shared 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_LIB_FILE - Name of the file that contains the Tcl library, such +# as libtcl7.8.so or libtcl7.8.a. +# TCL_LIB_SUFFIX -Specifies everything that comes after the "libtcl" +# in the 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 the Tcl shared library needs to have +# a .a extension whereas shared objects for loadable +# extensions have a .so extension. Defaults to +# ${VERSION}${SHLIB_SUFFIX}. +# TCL_NEEDS_EXP_FILE - +# 1 means that an export file is needed to link to a +# shared library. +# TCL_EXP_FILE - The name of the installed export / import file which +# should be used to link to the Tcl shared library. +# Empty if Tcl is unshared. +# TCL_BUILD_EXP_FILE - +# The name of the built export / import file which +# should be used to link to the Tcl shared library. +# Empty if Tcl is unshared. +# CFLAGS_DEBUG - +# Flags used when running the compiler in debug mode +# CFLAGS_OPTIMIZE - +# Flags used when running the compiler in optimize mode +# +# EXTRA_CFLAGS # +# Subst's the following vars: +# DL_LIBS +# CFLAGS_DEBUG +# CFLAGS_OPTIMIZE #-------------------------------------------------------------------- -AC_DEFUN(SC_SERIAL_PORT, [ - AC_MSG_CHECKING([termios vs. termio vs. sgtty]) +AC_DEFUN(SC_CONFIG_CFLAGS, [ - AC_TRY_RUN([ -#include + # Step 0: Enable 64 bit support? -main() -{ - struct termios t; - if (tcgetattr(0, &t) == 0) { - cfsetospeed(&t, 0); - t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB; - return 0; - } - return 1; -}], tk_ok=termios, tk_ok=no, tk_ok=no) + AC_MSG_CHECKING([if 64bit support is enabled]) + AC_ARG_ENABLE(64bit,[ --enable-64bit enable 64bit support],,enableval="no") - if test $tk_ok = termios; then - AC_DEFINE(USE_TERMIOS) + if test "$enableval" = "yes"; then + AC_MSG_RESULT(Will compile with 64bit support) + do64bit=yes else - AC_TRY_RUN([ -#include - -main() -{ - struct termio t; - if (ioctl(0, TCGETA, &t) == 0) { - t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB; - return 0; - } - return 1; - }], tk_ok=termio, tk_ok=no, tk_ok=no) + do64bit=no + fi + AC_MSG_RESULT($do64bit) + + # Step 1: set the variable "system" to hold the name and version number + # for the system. This can usually be done via the "uname" command, but + # there are a few systems, like Next, where this doesn't work. - if test $tk_ok = termio; then - AC_DEFINE(USE_TERMIO) + AC_MSG_CHECKING([system version (for dynamic loading)]) + if test -f /usr/lib/NextStep/software_version; then + system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version` else - AC_TRY_RUN([ -#include - -main() -{ - struct sgttyb t; - if (ioctl(0, TIOCGETP, &t) == 0) { - t.sg_ospeed = 0; - t.sg_flags |= ODDP | EVENP | RAW; - return 0; - } - return 1; -}], tk_ok=sgtty, tk_ok=none, tk_ok=none) - if test $tk_ok = sgtty; then - AC_DEFINE(USE_SGTTY) - fi - fi + system=`uname -s`-`uname -r` + if test "$?" -ne 0 ; then + AC_MSG_RESULT([unknown (can't find uname command)]) + system=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 + system=MP-RAS-`awk '{print $3}' /etc/.relid'` + fi + if test "`uname -s`" = "AIX" ; then + system=AIX-`uname -v`.`uname -r` + fi + AC_MSG_RESULT($system) + fi fi - AC_MSG_RESULT($tk_ok) -]) -#-------------------------------------------------------------------- -# 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_ERRNO_H -# NO_VALUES_H -# NO_LIMITS_H -# NO_STDLIB_H -# NO_STRING_H -# NO_SYS_WAIT_H -# NO_DLFCN_H -# HAVE_UNISTD_H -# HAVE_SYS_PARAM_H -# -# HAVE_STRING_H ? -# -#-------------------------------------------------------------------- + # Step 2: check for existence of -ldl library. This is needed because + # Linux can use either -ldl or -ldld for dynamic loading. -AC_DEFUN(SC_MISSING_POSIX_HEADERS, [ + AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no) - AC_MSG_CHECKING(dirent.h) - AC_TRY_LINK([#include -#include ], [ -#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_ok=yes, tcl_ok=no) - - if test $tcl_ok = no; then - AC_DEFINE(NO_DIRENT_H) - fi - - AC_MSG_RESULT($tcl_ok) - AC_CHECK_HEADER(errno.h, , AC_DEFINE(NO_ERRNO_H)) - AC_CHECK_HEADER(float.h, , AC_DEFINE(NO_FLOAT_H)) - AC_CHECK_HEADER(values.h, , AC_DEFINE(NO_VALUES_H)) - AC_CHECK_HEADER(limits.h, , AC_DEFINE(NO_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) - 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 $tcl_ok = 0; then - AC_DEFINE(NO_STRING_H) - fi - - AC_CHECK_HEADER(sys/wait.h, , AC_DEFINE(NO_SYS_WAIT_H)) - AC_CHECK_HEADER(dlfcn.h, , AC_DEFINE(NO_DLFCN_H)) - - # OS/390 lacks sys/param.h (and doesn't need it, by chance). - - AC_HAVE_HEADERS(unistd.h sys/param.h) - -]) - -#-------------------------------------------------------------------- -# SC_PATH_X -# -# Locate the X11 header files and the X11 library archive. Try -# the ac_path_x macro first, but if it doesn't find the X stuff -# (e.g. because there's no xmkmf program) then check through -# a list of possible directories. Under some conditions the -# autoconf macro will return an include directory that contains -# no include files, so double-check its result just to be safe. -# -# Arguments: -# none -# -# Results: -# -# Sets the the following vars: -# XINCLUDES -# XLIBSW -# -#-------------------------------------------------------------------- - -AC_DEFUN(SC_PATH_X, [ - AC_PATH_X - not_really_there="" - if test "$no_x" = ""; then - if test "$x_includes" = ""; then - AC_TRY_CPP([#include ], , 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 "$not_really_there" = "yes"; then - AC_MSG_CHECKING(for X11 header files) - XINCLUDES="# no special path needed" - AC_TRY_CPP([#include ], , XINCLUDES="nope") - if test "$XINCLUDES" = nope; 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$i" - break - fi - done - fi - else - if test "$x_includes" != ""; then - XINCLUDES=-I$x_includes - else - XINCLUDES="# no special path needed" - fi - fi - if test "$XINCLUDES" = nope; then - AC_MSG_RESULT(couldn't find any!) - XINCLUDES="# no include files found" - 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 $i/libX11.sl; then - AC_MSG_RESULT($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(couldn't 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 -# -#-------------------------------------------------------------------- + # Step 3: set configuration options based on system name and version. -AC_DEFUN(SC_BLOCKING_STYLE, [ - AC_CHECK_HEADERS(sys/ioctl.h) - AC_CHECK_HEADERS(sys/filio.h) - AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O]) - if test -f /usr/lib/NextStep/software_version; then - system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version` - else - system=`uname -s`-`uname -r` - if test "$?" -ne 0 ; then - system=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 - system=MP-RAS-`awk '{print $3}' /etc/.relid'` - fi - if test "`uname -s`" = "AIX" ; then - system=AIX-`uname -v`.`uname -r` - fi - fi - fi + do64bit_ok=no + fullSrcDir=`cd $srcdir; pwd` + EXTRA_CFLAGS="" + TCL_EXPORT_FILE_SUFFIX="" + UNSHARED_LIB_SUFFIX="" + TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`' + ECHO_VERSION='`echo ${VERSION}`' + TCL_LIB_VERSIONS_OK=ok + CFLAGS_DEBUG=-g + CFLAGS_OPTIMIZE=-O + TCL_NEEDS_EXP_FILE=0 + TCL_BUILD_EXP_FILE="" + TCL_EXP_FILE="" case $system in - # There used to be code here to use FIONBIO under AIX. However, it - # was reported that FIONBIO doesn't work under AIX 3.2.5. Since - # using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO - # code (JO, 5/31/97). - - OSF*) - AC_DEFINE(USE_FIONBIO) - AC_MSG_RESULT(FIONBIO) + AIX-4.[[2-9]]) + SHLIB_CFLAGS="" + SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry" + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="" + LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' + TCL_NEEDS_EXP_FILE=1 + TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp' ;; - SunOS-4*) - AC_DEFINE(USE_FIONBIO) - AC_MSG_RESULT(FIONBIO) + AIX-*) + SHLIB_CFLAGS="" + SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512" + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + LIBOBJS="$LIBOBJS tclLoadAix.o" + DL_LIBS="-lld" + LDFLAGS="" + LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' + TCL_NEEDS_EXP_FILE=1 + TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp' ;; - ULTRIX-4.*) - AC_DEFINE(USE_FIONBIO) - AC_MSG_RESULT(FIONBIO) + BSD/OS-2.1*|BSD/OS-3*) + SHLIB_CFLAGS="" + SHLIB_LD="shlicc -r" + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="" + LD_SEARCH_FLAGS="" ;; - *) - AC_MSG_RESULT(O_NONBLOCK) + BSD/OS-4.*) + SHLIB_CFLAGS="-export-dynamic -fPIC" + SHLIB_LD="cc -shared" + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="-export-dynamic" + LD_SEARCH_FLAGS="" ;; - esac -]) - -#-------------------------------------------------------------------- -# SC_HAVE_VFORK -# -# Check to see whether the system provides a vfork kernel call. -# If not, then use fork instead. Also, check for a problem with -# vforks and signals that can cause core dumps if a vforked child -# resets a signal handler. If the problem exists, then use fork -# instead of vfork. -# -# Arguments: -# none -# -# Results: -# -# Defines some of the following vars: -# vfork (=fork) -# -#-------------------------------------------------------------------- + dgux*) + SHLIB_CFLAGS="-K PIC" + SHLIB_LD="cc -G" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="" + LD_SEARCH_FLAGS="" + ;; + HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*|HP-UX-*.11.*) + SHLIB_SUFFIX=".sl" + AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no) + if test "$tcl_ok" = yes; then + SHLIB_CFLAGS="+z" + SHLIB_LD="ld -b" + SHLIB_LD_LIBS="" + DL_OBJS="tclLoadShl.o" + DL_LIBS="-ldld" + LDFLAGS="-Wl,-E" + LD_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.' + fi + ;; + IRIX-4.*) + SHLIB_CFLAGS="-G 0" + SHLIB_SUFFIX=".a" + SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0" + SHLIB_LD_LIBS='${LIBS}' + DL_OBJS="tclLoadAout.o" + DL_LIBS="" + LDFLAGS="-Wl,-D,08000000" + LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' + SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a' + ;; + IRIX-5.*|IRIX-6.*|IRIX64-6.5*) + SHLIB_CFLAGS="" + SHLIB_LD="ld -n32 -shared -rdata_shared" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="" + LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}' + if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then + EXTRA_CFLAGS="-mabi=n32" + LDFLAGS="-mabi=n32" + else + case $system in + IRIX-6.3) + # Use to build 6.2 compatible binaries on 6.3. + EXTRA_CFLAGS="-n32 -D_OLD_TERMIOS" + ;; + *) + EXTRA_CFLAGS="-n32" + ;; + esac + LDFLAGS="-n32" + fi + ;; + IRIX64-6.*) + SHLIB_CFLAGS="" + SHLIB_LD="ld -32 -shared -rdata_shared" + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}' + ;; + Linux*) + SHLIB_CFLAGS="-fPIC" + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".so" + if test "$have_dl" = yes; then + SHLIB_LD="${CC} -shared" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="-rdynamic" + LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}' + else + AC_CHECK_HEADER(dld.h, [ + SHLIB_LD="ld -shared" + DL_OBJS="tclLoadDld.o" + DL_LIBS="-ldld" + LDFLAGS="" + LD_SEARCH_FLAGS=""]) + fi + ;; + MP-RAS-02*) + SHLIB_CFLAGS="-K PIC" + SHLIB_LD="cc -G" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="" + LD_SEARCH_FLAGS="" + ;; + MP-RAS-*) + SHLIB_CFLAGS="-K PIC" + SHLIB_LD="cc -G" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="-Wl,-Bexport" + LD_SEARCH_FLAGS="" + ;; + NetBSD-*|FreeBSD-[[12]].*|OpenBSD-*) + # Not available on all versions: check for include file. + AC_CHECK_HEADER(dlfcn.h, [ + SHLIB_CFLAGS="-fpic" + SHLIB_LD="ld -Bshareable -x" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS="" + SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0' + ], [ + SHLIB_CFLAGS="" + SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r" + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".a" + DL_OBJS="tclLoadAout.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' + SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a' + ]) -AC_DEFUN(SC_HAVE_VFORK, [ - AC_TYPE_SIGNAL() - AC_CHECK_FUNC(vfork, tcl_ok=1, tcl_ok=0) - if test "$tcl_ok" = 1; then - AC_MSG_CHECKING([vfork/signal bug]); - AC_TRY_RUN([ -#include -#include -#include -int gotSignal = 0; -sigProc(sig) - int sig; -{ - gotSignal = 1; -} -main() -{ - int pid, sts; - (void) signal(SIGCHLD, sigProc); - pid = vfork(); - if (pid < 0) { - exit(1); - } else if (pid == 0) { - (void) signal(SIGCHLD, SIG_DFL); - _exit(0); - } else { - (void) wait(&sts); - } - exit((gotSignal) ? 0 : 1); -}], tcl_ok=1, tcl_ok=0, tcl_ok=0) + # FreeBSD doesn't handle version numbers with dots. - if test "$tcl_ok" = 1; then - AC_MSG_RESULT(ok) - else - AC_MSG_RESULT([buggy, using fork instead]) - fi - fi - rm -f core - if test "$tcl_ok" = 0; then - AC_DEFINE(vfork, fork) - fi -]) + UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a' + TCL_LIB_VERSIONS_OK=nodots + ;; + FreeBSD-*) + # FreeBSD 3.* and greater have ELF. + SHLIB_CFLAGS="-fpic" + SHLIB_LD="ld -Bshareable -x" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS="" + ;; + NEXTSTEP-*) + SHLIB_CFLAGS="" + SHLIB_LD="cc -nostdlib -r" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadNext.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS="" + ;; + OS/390-*) + CFLAGS_OPTIMIZE="" # Optimizer is buggy + AC_DEFINE(_OE_SOCKETS) # needed in sys/socket.h + ;; + 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 $@:' + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadOSF.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS="" + ;; + OSF1-1.*) + # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2 + SHLIB_CFLAGS="-fpic" + SHLIB_LD="ld -shared" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS="" + ;; + OSF1-V*) + # Digital OSF/1 + SHLIB_CFLAGS="" + SHLIB_LD='ld -shared -expect_unresolved "*"' + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}' + ;; + RISCos-*) + SHLIB_CFLAGS="-G 0" + SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0" + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".a" + DL_OBJS="tclLoadAout.o" + DL_LIBS="" + LDFLAGS="-Wl,-D,08000000" + LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' + ;; + 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. + SHLIB_CFLAGS="-Kpic -belf" + SHLIB_LD="ld -G" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="" + LDFLAGS="-belf -Wl,-Bexport" + 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" + LDFLAGS="" + LD_SEARCH_FLAGS="" + ;; + SunOS-4*) + SHLIB_CFLAGS="-PIC" + SHLIB_LD="ld" + SHLIB_LD_LIBS="" + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="" + LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' -#-------------------------------------------------------------------- -# SC_TIME_HANLDER -# -# Checks how the system deals with time.h, what time structures -# are used on the system, and what fields the structures have. -# -# Arguments: -# none -# -# Results: -# -# Defines some of the following vars: -# USE_DELTA_FOR_TZ -# HAVE_TM_GMTOFF -# HAVE_TM_TZADJ -# HAVE_TIMEZONE_VAR -# -#-------------------------------------------------------------------- + # SunOS can't handle version numbers with dots in them in library + # specs, like -ltcl7.5, so use -ltcl75 instead. Also, it + # requires an extra version number at the end of .so file names. + # So, the library has to have a name like libtcl75.so.1.0 -AC_DEFUN(SC_TIME_HANDLER, [ - AC_CHECK_HEADERS(sys/time.h) - AC_HEADER_TIME - AC_STRUCT_TIMEZONE + SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0' + UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a' + TCL_LIB_VERSIONS_OK=nodots + ;; + SunOS-5.[[0-6]]*) + SHLIB_CFLAGS="-KPIC" + SHLIB_LD="/usr/ccs/bin/ld -G -z text" - AC_MSG_CHECKING([tm_tzadj in struct tm]) - AC_TRY_COMPILE([#include ], [struct tm tm; tm.tm_tzadj;], - [AC_DEFINE(HAVE_TM_TZADJ) - AC_MSG_RESULT(yes)], - AC_MSG_RESULT(no)) + # Note: need the LIBS below, otherwise Tk won't find Tcl's + # symbols when dynamically loaded into tclsh. - AC_MSG_CHECKING([tm_gmtoff in struct tm]) - AC_TRY_COMPILE([#include ], [struct tm tm; tm.tm_gmtoff;], - [AC_DEFINE(HAVE_TM_GMTOFF) - AC_MSG_RESULT(yes)], - AC_MSG_RESULT(no)) + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + LDFLAGS="" + LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}' + ;; + SunOS-5*) + SHLIB_CFLAGS="-KPIC" + SHLIB_LD="/usr/ccs/bin/ld -G -z text" + LDFLAGS="" + + do64bit_ok=no + if test "$do64bit" = "yes" ; then + arch=`isainfo` + if test "$arch" = "sparcv9 sparc" ; then + if test "$CC" != "gcc" -a `$CC -v 2>&1 | grep -c gcc` = "0" ; then + do64bit_ok=yes + EXTRA_CFLAGS="-xarch=v9" + LDFLAGS="-xarch=v9" + else + AC_MSG_WARN("64bit mode not supported using GCC on $system") + fi + else + AC_MSG_WARN("64bit mode only supported sparcv9 system") + fi + fi + + # Note: need the LIBS below, otherwise Tk won't find Tcl's + # symbols when dynamically loaded into tclsh. - # - # Its important to include time.h in this check, as some systems - # (like convex) have timezone functions, etc. - # - have_timezone=no - AC_MSG_CHECKING([long timezone variable]) - AC_TRY_COMPILE([#include ], - [extern long timezone; - timezone += 1; - exit (0);], - [have_timezone=yes - AC_DEFINE(HAVE_TIMEZONE_VAR) - AC_MSG_RESULT(yes)], - AC_MSG_RESULT(no)) + SHLIB_LD_LIBS='${LIBS}' + SHLIB_SUFFIX=".so" + DL_OBJS="tclLoadDl.o" + DL_LIBS="-ldl" + if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then + LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}' + else + LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}' + fi + ;; + ULTRIX-4.*) + SHLIB_CFLAGS="-G 0" + SHLIB_SUFFIX=".a" + SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0" + SHLIB_LD_LIBS='${LIBS}' + DL_OBJS="tclLoadAout.o" + DL_LIBS="" + LDFLAGS="-Wl,-D,08000000" + LD_SEARCH_FLAGS='-L${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. + hold_ldflags=$LDFLAGS + AC_MSG_CHECKING(for ld accepts -Bexport flag) + LDFLAGS="${LDFLAGS} -Wl,-Bexport" + AC_TRY_LINK(, [int i;], found=yes, found=no) + LDFLAGS=$hold_ldflags + AC_MSG_RESULT($found) + if test $found = yes; then + LDFLAGS="-Wl,-Bexport" + else + LDFLAGS="" + fi + LD_SEARCH_FLAGS="" + ;; + esac - # - # On some systems (eg IRIX 6.2), timezone is a time_t and not a long. - # - if test "$have_timezone" = no; then - AC_MSG_CHECKING([time_t timezone variable]) - AC_TRY_COMPILE([#include ], - [extern time_t timezone; - timezone += 1; - exit (0);], - [AC_DEFINE(HAVE_TIMEZONE_VAR) - AC_MSG_RESULT(yes)], - AC_MSG_RESULT(no)) + if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then + AC_MSG_WARN("64bit support being disabled -- not supported on this platform") fi + # Step 4: If pseudo-static linking is in use (see K. B. Kenny, "Dynamic + # Loading for Tcl -- What Became of It?". Proc. 2nd Tcl/Tk Workshop, + # New Orleans, LA, Computerized Processes Unlimited, 1994), then we need + # to determine which of several header files defines the a.out file + # format (a.out.h, sys/exec.h, or sys/exec_aout.h). At present, we + # support only a file format that is more or less version-7-compatible. + # In particular, + # - a.out files must begin with `struct exec'. + # - the N_TXTOFF on the `struct exec' must compute the seek address + # of the text segment + # - The `struct exec' must contain a_magic, a_text, a_data, a_bss + # and a_entry fields. + # The following compilation should succeed if and only if either sys/exec.h + # or a.out.h is usable for the purpose. # - # AIX does not have a timezone field in struct tm. When the AIX bsd - # library is used, the timezone global and the gettimeofday methods are - # to be avoided for timezone deduction instead, we deduce the timezone - # by comparing the localtime result on a known GMT value. - # - - if test "`uname -s`" = "AIX" ; then - AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) - if test $libbsd = yes; then - AC_DEFINE(USE_DELTA_FOR_TZ) - fi - fi -]) - -#-------------------------------------------------------------------- -# SC_BUGGY_STRTOD -# -# Under Solaris 2.4, strtod returns the wrong value for the -# terminating character under some conditions. Check for this -# and if the problem exists use a substitute procedure -# "fixstrtod" (provided by Tcl) that corrects the error. -# -# Arguments: -# none -# -# Results: -# -# Might defines some of the following vars: -# strtod (=fixstrtod) -# -#-------------------------------------------------------------------- + # Note that the modified COFF format used on MIPS Ultrix 4.x is usable; the + # `struct exec' includes a second header that contains information that + # duplicates the v7 fields that are needed. -AC_DEFUN(SC_BUGGY_STRTOD, [ - AC_CHECK_FUNC(strtod, tk_strtod=1, tk_strtod=0) - if test "$tk_strtod" = 1; then - AC_MSG_CHECKING([for Solaris 2.4 strtod bug]) - AC_TRY_RUN([ - extern double strtod(); - int main() - { - char *string = "NaN"; - char *term; - strtod(string, &term); - if ((term != string) && (term[-1] == 0)) { - exit(1); - } - exit(0); - }], tk_ok=1, tk_ok=0, tk_ok=0) - if test "$tk_ok" = 1; then - AC_MSG_RESULT(ok) + if test "x$DL_OBJS" = "xtclLoadAout.o" ; then + AC_MSG_CHECKING(sys/exec.h) + AC_TRY_COMPILE([#include ],[ + struct exec foo; + unsigned long seek; + int flag; +#if defined(__mips) || defined(mips) + seek = N_TXTOFF (foo.ex_f, foo.ex_o); +#else + seek = N_TXTOFF (foo); +#endif + flag = (foo.a_magic == OMAGIC); + return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry; + ], tcl_ok=usable, tcl_ok=unusable) + AC_MSG_RESULT($tcl_ok) + if test $tcl_ok = usable; then + AC_DEFINE(USE_SYS_EXEC_H) else - AC_MSG_RESULT(buggy) - AC_DEFINE(strtod, fixstrtod) + AC_MSG_CHECKING(a.out.h) + AC_TRY_COMPILE([#include ],[ + struct exec foo; + unsigned long seek; + int flag; +#if defined(__mips) || defined(mips) + seek = N_TXTOFF (foo.ex_f, foo.ex_o); +#else + seek = N_TXTOFF (foo); +#endif + flag = (foo.a_magic == OMAGIC); + return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry; + ], tcl_ok=usable, tcl_ok=unusable) + AC_MSG_RESULT($tcl_ok) + if test $tcl_ok = usable; then + AC_DEFINE(USE_A_OUT_H) + else + AC_MSG_CHECKING(sys/exec_aout.h) + AC_TRY_COMPILE([#include ],[ + struct exec foo; + unsigned long seek; + int flag; +#if defined(__mips) || defined(mips) + seek = N_TXTOFF (foo.ex_f, foo.ex_o); +#else + seek = N_TXTOFF (foo); +#endif + flag = (foo.a_midmag == OMAGIC); + return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry; + ], tcl_ok=usable, tcl_ok=unusable) + AC_MSG_RESULT($tcl_ok) + if test $tcl_ok = usable; then + AC_DEFINE(USE_SYS_EXEC_AOUT_H) + else + DL_OBJS="" + fi + fi fi fi -]) -#-------------------------------------------------------------------- -# SC_TCL_LINK_LIBS -# -# Search for the libraries needed to link the Tcl shell. -# Things like the math library (-lm) and socket stuff (-lsocket vs. -# -lnsl) are dealt with here. -# -# Arguments: -# Requires the following vars to be set in the Makefile: -# DL_LIBS -# LIBS -# MATH_LIBS -# -# Results: -# -# Subst's the following var: -# TCL_LIBS -# MATH_LIBS -# -# Might append to the following vars: -# LIBS -# -# Might define the following vars: -# HAVE_NET_ERRNO_H -# -#-------------------------------------------------------------------- + # Step 5: disable dynamic loading if requested via a command-line switch. -AC_DEFUN(SC_TCL_LINK_LIBS, [ - #-------------------------------------------------------------------- - # On a few very rare systems, all of the libm.a stuff is - # already in libc.a. Set compiler flags accordingly. - # Also, Linux requires the "ieee" library for math to work - # right (and it must appear before "-lm"). - #-------------------------------------------------------------------- + AC_ARG_ENABLE(load, [ --disable-load disallow dynamic loading and "load" command], + [tcl_ok=$enableval], [tcl_ok=yes]) + if test "$tcl_ok" = "no"; then + DL_OBJS="" + fi - AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm") - AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"]) + if test "x$DL_OBJS" != "x" ; then + BUILD_DLTEST="\$(DLTEST_TARGETS)" + else + echo "Can't figure out how to do dynamic loading or shared libraries" + echo "on this system." + SHLIB_CFLAGS="" + SHLIB_LD="" + SHLIB_SUFFIX="" + DL_OBJS="tclLoadNone.o" + DL_LIBS="" + LDFLAGS="" + LD_SEARCH_FLAGS="" + BUILD_DLTEST="" + fi - #-------------------------------------------------------------------- - # On AIX systems, libbsd.a has to be linked in to support - # non-blocking file IO. This library has to be linked in after - # the MATH_LIBS or it breaks the pow() function. The way to - # insure proper sequencing, is to add it to the tail of MATH_LIBS. - # This library also supplies gettimeofday. - #-------------------------------------------------------------------- + # 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. - libbsd=no - if test "`uname -s`" = "AIX" ; then - AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) - if test $libbsd = yes; then - MATH_LIBS="$MATH_LIBS -lbsd" + if test "$DL_OBJS" != "tclLoadNone.o" ; then + if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then + case $system in + AIX-*) + ;; + BSD/OS*) + ;; + IRIX*) + ;; + NetBSD-*|FreeBSD-*|OpenBSD-*) + ;; + RISCos-*) + ;; + ULTRIX-4.*) + ;; + *) + SHLIB_CFLAGS="-fPIC" + ;; + esac fi fi - - #-------------------------------------------------------------------- - # Interactive UNIX requires -linet instead of -lsocket, plus it - # needs net/errno.h to define the socket-related error codes. - #-------------------------------------------------------------------- - - AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"]) - AC_CHECK_HEADER(net/errno.h, AC_DEFINE(HAVE_NET_ERRNO_H)) - - #-------------------------------------------------------------------- - # 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 "$tcl_checkSocket" = 1; then - AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", tcl_checkBoth=1) + if test "$SHARED_LIB_SUFFIX" = "" ; then + SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}${SHLIB_SUFFIX}' fi - if test "$tcl_checkBoth" = 1; then - tk_oldLibs=$LIBS - LIBS="$LIBS -lsocket -lnsl" - AC_CHECK_FUNC(accept, tcl_checkNsl=0, [LIBS=$tk_oldLibs]) + if test "$UNSHARED_LIB_SUFFIX" = "" ; then + UNSHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a' fi - AC_CHECK_FUNC(gethostbyname, , AC_CHECK_LIB(nsl, main, - [LIBS="$LIBS -lnsl"])) - - # Don't perform the eval of the libraries here because DL_LIBS - # won't be set until we call SC_CONFIG_CFLAGS - TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}' - AC_SUBST(TCL_LIBS) - AC_SUBST(MATH_LIBS) + AC_SUBST(DL_LIBS) + AC_SUBST(CFLAGS_DEBUG) + AC_SUBST(CFLAGS_OPTIMIZE) ]) #-------------------------------------------------------------------- -# SC_CONFIG_CFLAGS +# SC_SERIAL_PORT # -# Try to determine the proper flags to pass to the compiler -# for building shared libraries and other such nonsense. +# Determine which interface to use to talk to the serial port. +# Note that #include lines must begin in leftmost column for +# some compilers to recognize them as preprocessor directives. # # Arguments: # none -# +# # Results: # -# Defines the following vars: -# -# DL_OBJS - Name of the object file that implements dynamic -# loading for Tcl on this system. -# DL_LIBS - Library file(s) to include in tclsh and other base -# applications in order for the "load" command to work. -# LD_FLAGS - Flags to pass to the compiler when linking object -# files into an executable application binary such -# as tclsh. -# LD_SEARCH_FLAGS-Flags to pass to ld, such as "-R /usr/local/tcl/lib", -# that tell the run-time dynamic linker where to look -# for shared libraries such as libtcl.so. Depends on -# the variable LIB_RUNTIME_DIR in the Makefile. -# MAKE_LIB - Command to execute to build the Tcl library; -# differs depending on whether or not Tcl is being -# compiled as a shared library. -# SHLIB_CFLAGS - Flags to pass to cc when compiling the components -# of a shared library (may request position-independent -# code, among other things). -# SHLIB_LD - Base command to use for combining object files -# into a shared library. -# SHLIB_LD_LIBS - Dependent libraries for the linker to scan when -# creating shared libraries. This symbol typically -# goes at the end of the "ld" commands that build -# shared libraries. The value of the symbol is -# "${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_LIB_FILE - Name of the file that contains the Tcl library, such -# as libtcl7.8.so or libtcl7.8.a. -# TCL_LIB_SUFFIX -Specifies everything that comes after the "libtcl" -# in the 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 the Tcl shared library needs to have -# a .a extension whereas shared objects for loadable -# extensions have a .so extension. Defaults to -# ${VERSION}${SHLIB_SUFFIX}. -# TCL_NEEDS_EXP_FILE - -# 1 means that an export file is needed to link to a -# shared library. -# TCL_EXP_FILE - The name of the installed export / import file which -# should be used to link to the Tcl shared library. -# Empty if Tcl is unshared. -# TCL_BUILD_EXP_FILE - -# The name of the built export / import file which -# should be used to link to the Tcl shared library. -# Empty if Tcl is unshared. -# CFLAGS_DEBUG - -# Flags used when running the compiler in debug mode -# CFLAGS_OPTIMIZE - -# Flags used when running the compiler in optimize mode -# -# EXTRA_CFLAGS +# Defines only one of the following vars: +# USE_TERMIOS +# USE_TERMIO +# USE_SGTTY # -# Subst's the following vars: -# DL_LIBS -# CFLAGS_DEBUG -# CFLAGS_OPTIMIZE #-------------------------------------------------------------------- -AC_DEFUN(SC_CONFIG_CFLAGS, [ - - # Step 0: Enable 64 bit support? +AC_DEFUN(SC_SERIAL_PORT, [ + AC_MSG_CHECKING([termios vs. termio vs. sgtty]) - AC_MSG_CHECKING([if 64bit support is enabled]) - AC_ARG_ENABLE(64bit,[ --enable-64bit enable 64bit support],,enableval="no") + AC_TRY_RUN([ +#include - if test "$enableval" = "yes"; then - AC_MSG_RESULT(Will compile with 64bit support) - do64bit=yes - else - do64bit=no - fi - AC_MSG_RESULT($do64bit) - - # Step 1: set the variable "system" to hold the name and version number - # for the system. This can usually be done via the "uname" command, but - # there are a few systems, like Next, where this doesn't work. +main() +{ + struct termios t; + if (tcgetattr(0, &t) == 0) { + cfsetospeed(&t, 0); + t.c_cflag |= PARENB | PARODD | CSIZE | CSTOPB; + return 0; + } + return 1; +}], tk_ok=termios, tk_ok=no, tk_ok=no) - AC_MSG_CHECKING([system version (for dynamic loading)]) - if test -f /usr/lib/NextStep/software_version; then - system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version` + if test $tk_ok = termios; then + AC_DEFINE(USE_TERMIOS) else - system=`uname -s`-`uname -r` - if test "$?" -ne 0 ; then - AC_MSG_RESULT([unknown (can't find uname command)]) - system=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 - system=MP-RAS-`awk '{print $3}' /etc/.relid'` - fi - if test "`uname -s`" = "AIX" ; then - system=AIX-`uname -v`.`uname -r` - fi - AC_MSG_RESULT($system) - fi - fi + AC_TRY_RUN([ +#include - # Step 2: check for existence of -ldl library. This is needed because - # Linux can use either -ldl or -ldld for dynamic loading. +main() +{ + struct termio t; + if (ioctl(0, TCGETA, &t) == 0) { + t.c_cflag |= CBAUD | PARENB | PARODD | CSIZE | CSTOPB; + return 0; + } + return 1; + }], tk_ok=termio, tk_ok=no, tk_ok=no) - AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no) + if test $tk_ok = termio; then + AC_DEFINE(USE_TERMIO) + else + AC_TRY_RUN([ +#include - # Step 3: set configuration options based on system name and version. +main() +{ + struct sgttyb t; + if (ioctl(0, TIOCGETP, &t) == 0) { + t.sg_ospeed = 0; + t.sg_flags |= ODDP | EVENP | RAW; + return 0; + } + return 1; +}], tk_ok=sgtty, tk_ok=none, tk_ok=none) + if test $tk_ok = sgtty; then + AC_DEFINE(USE_SGTTY) + fi + fi + fi + AC_MSG_RESULT($tk_ok) +]) - do64bit_ok=no - fullSrcDir=`cd $srcdir; pwd` - EXTRA_CFLAGS="" - TCL_EXPORT_FILE_SUFFIX="" - UNSHARED_LIB_SUFFIX="" - TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`' - ECHO_VERSION='`echo ${VERSION}`' - TCL_LIB_VERSIONS_OK=ok - CFLAGS_DEBUG=-g - CFLAGS_OPTIMIZE=-O - TCL_NEEDS_EXP_FILE=0 - TCL_BUILD_EXP_FILE="" - TCL_EXP_FILE="" - case $system in - AIX-4.[[2-9]]) - SHLIB_CFLAGS="" - SHLIB_LD="$fullSrcDir/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry" - SHLIB_LD_LIBS='${LIBS}' - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="-ldl" - LD_FLAGS="" - LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' - TCL_NEEDS_EXP_FILE=1 - TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp' - ;; 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then - SHLIB_CFLAGS="+z" - SHLIB_LD="ld -b" - SHLIB_LD_LIBS="" - DL_OBJS="tclLoadShl.o" - DL_LIBS="-ldld" - LD_FLAGS="-Wl,-E" - LD_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.' - fi - ;; - IRIX-4.*) - SHLIB_CFLAGS="-G 0" - SHLIB_SUFFIX=".a" - SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0" - SHLIB_LD_LIBS='${LIBS}' - DL_OBJS="tclLoadAout.o" - DL_LIBS="" - LD_FLAGS="-Wl,-D,08000000" - LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' - SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a' - ;; - IRIX-5.*|IRIX-6.*|IRIX64-6.5*) - SHLIB_CFLAGS="" - SHLIB_LD="ld -n32 -shared -rdata_shared" - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="" - LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}' - if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then - EXTRA_CFLAGS="-mabi=n32" - LD_FLAGS="-mabi=n32" - else - case $system in - IRIX-6.3) - # Use to build 6.2 compatible binaries on 6.3. - EXTRA_CFLAGS="-n32 -D_OLD_TERMIOS" - ;; - *) - EXTRA_CFLAGS="-n32" - ;; - esac - LD_FLAGS="-n32" - fi - ;; - IRIX64-6.*) - SHLIB_CFLAGS="" - SHLIB_LD="ld -32 -shared -rdata_shared" - SHLIB_LD_LIBS='${LIBS}' - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}' - ;; - Linux*) - SHLIB_CFLAGS="-fPIC" - SHLIB_LD_LIBS='${LIBS}' - SHLIB_SUFFIX=".so" - if test "$have_dl" = yes; then - SHLIB_LD="${CC} -shared" - DL_OBJS="tclLoadDl.o" - DL_LIBS="-ldl" - LD_FLAGS="-rdynamic" - LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}' - else - AC_CHECK_HEADER(dld.h, [ - SHLIB_LD="ld -shared" - DL_OBJS="tclLoadDld.o" - DL_LIBS="-ldld" - LD_FLAGS="" - LD_SEARCH_FLAGS=""]) - fi - ;; - MP-RAS-02*) - SHLIB_CFLAGS="-K PIC" - SHLIB_LD="cc -G" - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="-ldl" - LD_FLAGS="" - LD_SEARCH_FLAGS="" - ;; - MP-RAS-*) - SHLIB_CFLAGS="-K PIC" - SHLIB_LD="cc -G" - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="-ldl" - LD_FLAGS="-Wl,-Bexport" - LD_SEARCH_FLAGS="" - ;; - NetBSD-*|FreeBSD-[[12]].*|OpenBSD-*) - # Not available on all versions: check for include file. - AC_CHECK_HEADER(dlfcn.h, [ - SHLIB_CFLAGS="-fpic" - SHLIB_LD="ld -Bshareable -x" - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS="" - SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0' - ], [ - SHLIB_CFLAGS="" - SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r" - SHLIB_LD_LIBS='${LIBS}' - SHLIB_SUFFIX=".a" - DL_OBJS="tclLoadAout.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' - SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a' - ]) +#-------------------------------------------------------------------- +# SC_MISSING_POSIX_HEADERS +# +# Supply substitutes for missing POSIX header files. Special +# notes: +# - stdlib.h doesn't define strtol, strtoul, or +# strtod insome versions of SunOS +# - some versions of string.h don't declare procedures such +# as strstr +# +# Arguments: +# none +# +# Results: +# +# Defines some of the following vars: +# NO_DIRENT_H +# NO_ERRNO_H +# NO_VALUES_H +# NO_LIMITS_H +# NO_STDLIB_H +# NO_STRING_H +# NO_SYS_WAIT_H +# NO_DLFCN_H +# HAVE_UNISTD_H +# HAVE_SYS_PARAM_H +# +# HAVE_STRING_H ? +# +#-------------------------------------------------------------------- - # FreeBSD doesn't handle version numbers with dots. +AC_DEFUN(SC_MISSING_POSIX_HEADERS, [ - UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a' - TCL_LIB_VERSIONS_OK=nodots - ;; - FreeBSD-*) - # FreeBSD 3.* and greater have ELF. - SHLIB_CFLAGS="-fpic" - SHLIB_LD="ld -Bshareable -x" - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS="" - ;; - NEXTSTEP-*) - SHLIB_CFLAGS="" - SHLIB_LD="cc -nostdlib -r" - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadNext.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS="" - ;; - OS/390-*) - CFLAGS_OPTIMIZE="" # Optimizer is buggy - AC_DEFINE(_OE_SOCKETS) # needed in sys/socket.h - ;; - 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 $@:' - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadOSF.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS="" - ;; - OSF1-1.*) - # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2 - SHLIB_CFLAGS="-fpic" - SHLIB_LD="ld -shared" - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS="" - ;; - OSF1-V*) - # Digital OSF/1 - SHLIB_CFLAGS="" - SHLIB_LD='ld -shared -expect_unresolved "*"' - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}' - ;; - RISCos-*) - SHLIB_CFLAGS="-G 0" - SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0" - SHLIB_LD_LIBS='${LIBS}' - SHLIB_SUFFIX=".a" - DL_OBJS="tclLoadAout.o" - DL_LIBS="" - LD_FLAGS="-Wl,-D,08000000" - LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' - ;; - 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. - SHLIB_CFLAGS="-Kpic -belf" - SHLIB_LD="ld -G" - SHLIB_LD_LIBS="" - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="" - LD_FLAGS="-belf -Wl,-Bexport" - 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" - LD_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" - LD_FLAGS="" - LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' + AC_MSG_CHECKING(dirent.h) + AC_TRY_LINK([#include +#include ], [ +#ifndef _POSIX_SOURCE +# ifdef __Lynx__ + /* + * Generate compilation error to make the test fail: Lynx headers + * are only valid if really in the POSIX environment. + */ - # SunOS can't handle version numbers with dots in them in library - # specs, like -ltcl7.5, so use -ltcl75 instead. Also, it - # requires an extra version number at the end of .so file names. - # So, the library has to have a name like libtcl75.so.1.0 + missing_procedure(); +# endif +#endif +DIR *d; +struct dirent *entryPtr; +char *p; +d = opendir("foobar"); +entryPtr = readdir(d); +p = entryPtr->d_name; +closedir(d); +], tcl_ok=yes, tcl_ok=no) - SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0' - UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a' - TCL_LIB_VERSIONS_OK=nodots - ;; - SunOS-5.[[0-6]]*) - SHLIB_CFLAGS="-KPIC" - SHLIB_LD="/usr/ccs/bin/ld -G -z text" + if test $tcl_ok = no; then + AC_DEFINE(NO_DIRENT_H) + fi - # Note: need the LIBS below, otherwise Tk won't find Tcl's - # symbols when dynamically loaded into tclsh. + AC_MSG_RESULT($tcl_ok) + AC_CHECK_HEADER(errno.h, , AC_DEFINE(NO_ERRNO_H)) + AC_CHECK_HEADER(float.h, , AC_DEFINE(NO_FLOAT_H)) + AC_CHECK_HEADER(values.h, , AC_DEFINE(NO_VALUES_H)) + AC_CHECK_HEADER(limits.h, , AC_DEFINE(NO_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) + 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 $tcl_ok = 0; then + AC_DEFINE(NO_STRING_H) + fi + + AC_CHECK_HEADER(sys/wait.h, , AC_DEFINE(NO_SYS_WAIT_H)) + AC_CHECK_HEADER(dlfcn.h, , AC_DEFINE(NO_DLFCN_H)) + + # OS/390 lacks sys/param.h (and doesn't need it, by chance). + + AC_HAVE_HEADERS(unistd.h sys/param.h) + +]) + +#-------------------------------------------------------------------- +# SC_PATH_X +# +# Locate the X11 header files and the X11 library archive. Try +# the ac_path_x macro first, but if it doesn't find the X stuff +# (e.g. because there's no xmkmf program) then check through +# a list of possible directories. Under some conditions the +# autoconf macro will return an include directory that contains +# no include files, so double-check its result just to be safe. +# +# Arguments: +# none +# +# Results: +# +# Sets the the following vars: +# XINCLUDES +# XLIBSW +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_PATH_X, [ + AC_PATH_X + not_really_there="" + if test "$no_x" = ""; then + if test "$x_includes" = ""; then + AC_TRY_CPP([#include ], , 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 "$not_really_there" = "yes"; then + AC_MSG_CHECKING(for X11 header files) + XINCLUDES="# no special path needed" + AC_TRY_CPP([#include ], , XINCLUDES="nope") + if test "$XINCLUDES" = nope; 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$i" + break + fi + done + fi + else + if test "$x_includes" != ""; then + XINCLUDES=-I$x_includes + else + XINCLUDES="# no special path needed" + fi + fi + if test "$XINCLUDES" = nope; then + AC_MSG_RESULT(couldn't find any!) + XINCLUDES="# no include files found" + 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 $i/libX11.sl; then + AC_MSG_RESULT($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(couldn't 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 +# +#-------------------------------------------------------------------- - SHLIB_LD_LIBS='${LIBS}' - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="-ldl" - LD_FLAGS="" - LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}' - ;; - SunOS-5*) - SHLIB_CFLAGS="-KPIC" - SHLIB_LD="/usr/ccs/bin/ld -G -z text" - LD_FLAGS="" - - do64bit_ok=no - if test "$do64bit" = "yes" ; then - arch=`isainfo` - if test "$arch" = "sparcv9 sparc" ; then - if test "$CC" != "gcc" -a `$CC -v 2>&1 | grep -c gcc` = "0" ; then - do64bit_ok=yes - EXTRA_CFLAGS="-xarch=v9" - LD_FLAGS="-xarch=v9" - else - AC_MSG_WARN("64bit mode not supported using GCC on $system") - fi - else - AC_MSG_WARN("64bit mode only supported sparcv9 system") +AC_DEFUN(SC_BLOCKING_STYLE, [ + AC_CHECK_HEADERS(sys/ioctl.h) + AC_CHECK_HEADERS(sys/filio.h) + AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O]) + if test -f /usr/lib/NextStep/software_version; then + system=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version` + else + system=`uname -s`-`uname -r` + if test "$?" -ne 0 ; then + system=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 + system=MP-RAS-`awk '{print $3}' /etc/.relid'` fi + if test "`uname -s`" = "AIX" ; then + system=AIX-`uname -v`.`uname -r` fi - - # Note: need the LIBS below, otherwise Tk won't find Tcl's - # symbols when dynamically loaded into tclsh. + fi + fi + case $system in + # There used to be code here to use FIONBIO under AIX. However, it + # was reported that FIONBIO doesn't work under AIX 3.2.5. Since + # using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO + # code (JO, 5/31/97). - SHLIB_LD_LIBS='${LIBS}' - SHLIB_SUFFIX=".so" - DL_OBJS="tclLoadDl.o" - DL_LIBS="-ldl" - if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then - LD_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}' - else - LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}' - fi + OSF*) + AC_DEFINE(USE_FIONBIO) + AC_MSG_RESULT(FIONBIO) + ;; + SunOS-4*) + AC_DEFINE(USE_FIONBIO) + AC_MSG_RESULT(FIONBIO) ;; ULTRIX-4.*) - SHLIB_CFLAGS="-G 0" - SHLIB_SUFFIX=".a" - SHLIB_LD="echo tclLdAout $CC \{$SHLIB_CFLAGS\} | `pwd`/tclsh -r -G 0" - SHLIB_LD_LIBS='${LIBS}' - DL_OBJS="tclLoadAout.o" - DL_LIBS="" - LD_FLAGS="-Wl,-D,08000000" - LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' + AC_DEFINE(USE_FIONBIO) + AC_MSG_RESULT(FIONBIO) ;; - 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. - hold_ldflags=$LDFLAGS - AC_MSG_CHECKING(for ld accepts -Bexport flag) - LDFLAGS="${LDFLAGS} -Wl,-Bexport" - AC_TRY_LINK(, [int i;], found=yes, found=no) - LDFLAGS=$hold_ldflags - AC_MSG_RESULT($found) - if test $found = yes; then - LD_FLAGS="-Wl,-Bexport" - else - LD_FLAGS="" - fi - LD_SEARCH_FLAGS="" + *) + AC_MSG_RESULT(O_NONBLOCK) ;; esac +]) + +#-------------------------------------------------------------------- +# SC_HAVE_VFORK +# +# Check to see whether the system provides a vfork kernel call. +# If not, then use fork instead. Also, check for a problem with +# vforks and signals that can cause core dumps if a vforked child +# resets a signal handler. If the problem exists, then use fork +# instead of vfork. +# +# Arguments: +# none +# +# Results: +# +# Defines some of the following vars: +# vfork (=fork) +# +#-------------------------------------------------------------------- + +AC_DEFUN(SC_HAVE_VFORK, [ + AC_TYPE_SIGNAL() + AC_CHECK_FUNC(vfork, tcl_ok=1, tcl_ok=0) + if test "$tcl_ok" = 1; then + AC_MSG_CHECKING([vfork/signal bug]); + AC_TRY_RUN([ +#include +#include +#include +int gotSignal = 0; +sigProc(sig) + int sig; +{ + gotSignal = 1; +} +main() +{ + int pid, sts; + (void) signal(SIGCHLD, sigProc); + pid = vfork(); + if (pid < 0) { + exit(1); + } else if (pid == 0) { + (void) signal(SIGCHLD, SIG_DFL); + _exit(0); + } else { + (void) wait(&sts); + } + exit((gotSignal) ? 0 : 1); +}], tcl_ok=1, tcl_ok=0, tcl_ok=0) + + if test "$tcl_ok" = 1; then + AC_MSG_RESULT(ok) + else + AC_MSG_RESULT([buggy, using fork instead]) + fi + fi + rm -f core + if test "$tcl_ok" = 0; then + AC_DEFINE(vfork, fork) + fi +]) + +#-------------------------------------------------------------------- +# 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_STRUCT_TIMEZONE + + AC_MSG_CHECKING([tm_tzadj in struct tm]) + AC_TRY_COMPILE([#include ], [struct tm tm; tm.tm_tzadj;], + [AC_DEFINE(HAVE_TM_TZADJ) + AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no)) + + AC_MSG_CHECKING([tm_gmtoff in struct tm]) + AC_TRY_COMPILE([#include ], [struct tm tm; tm.tm_gmtoff;], + [AC_DEFINE(HAVE_TM_GMTOFF) + AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no)) + + # + # Its important to include time.h in this check, as some systems + # (like convex) have timezone functions, etc. + # + have_timezone=no + AC_MSG_CHECKING([long timezone variable]) + AC_TRY_COMPILE([#include ], + [extern long timezone; + timezone += 1; + exit (0);], + [have_timezone=yes + AC_DEFINE(HAVE_TIMEZONE_VAR) + AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no)) + + # + # On some systems (eg IRIX 6.2), timezone is a time_t and not a long. + # + if test "$have_timezone" = no; then + AC_MSG_CHECKING([time_t timezone variable]) + AC_TRY_COMPILE([#include ], + [extern time_t timezone; + timezone += 1; + exit (0);], + [AC_DEFINE(HAVE_TIMEZONE_VAR) + AC_MSG_RESULT(yes)], + AC_MSG_RESULT(no)) + fi + + # + # AIX does not have a timezone field in struct tm. When the AIX bsd + # library is used, the timezone global and the gettimeofday methods are + # to be avoided for timezone deduction instead, we deduce the timezone + # by comparing the localtime result on a known GMT value. + # - if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then - AC_MSG_WARN("64bit support being disabled -- not supported on this platform") + if test "`uname -s`" = "AIX" ; then + AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) + if test $libbsd = yes; then + AC_DEFINE(USE_DELTA_FOR_TZ) + fi fi +]) - # Step 4: If pseudo-static linking is in use (see K. B. Kenny, "Dynamic - # Loading for Tcl -- What Became of It?". Proc. 2nd Tcl/Tk Workshop, - # New Orleans, LA, Computerized Processes Unlimited, 1994), then we need - # to determine which of several header files defines the a.out file - # format (a.out.h, sys/exec.h, or sys/exec_aout.h). At present, we - # support only a file format that is more or less version-7-compatible. - # In particular, - # - a.out files must begin with `struct exec'. - # - the N_TXTOFF on the `struct exec' must compute the seek address - # of the text segment - # - The `struct exec' must contain a_magic, a_text, a_data, a_bss - # and a_entry fields. - # The following compilation should succeed if and only if either sys/exec.h - # or a.out.h is usable for the purpose. - # - # Note that the modified COFF format used on MIPS Ultrix 4.x is usable; the - # `struct exec' includes a second header that contains information that - # duplicates the v7 fields that are needed. +#-------------------------------------------------------------------- +# SC_BUGGY_STRTOD +# +# Under Solaris 2.4, strtod returns the wrong value for the +# terminating character under some conditions. Check for this +# and if the problem exists use a substitute procedure +# "fixstrtod" (provided by Tcl) that corrects the error. +# +# Arguments: +# none +# +# Results: +# +# Might defines some of the following vars: +# strtod (=fixstrtod) +# +#-------------------------------------------------------------------- - if test "x$DL_OBJS" = "xtclLoadAout.o" ; then - AC_MSG_CHECKING(sys/exec.h) - AC_TRY_COMPILE([#include ],[ - struct exec foo; - unsigned long seek; - int flag; -#if defined(__mips) || defined(mips) - seek = N_TXTOFF (foo.ex_f, foo.ex_o); -#else - seek = N_TXTOFF (foo); -#endif - flag = (foo.a_magic == OMAGIC); - return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry; - ], tcl_ok=usable, tcl_ok=unusable) - AC_MSG_RESULT($tcl_ok) - if test $tcl_ok = usable; then - AC_DEFINE(USE_SYS_EXEC_H) +AC_DEFUN(SC_BUGGY_STRTOD, [ + AC_CHECK_FUNC(strtod, tk_strtod=1, tk_strtod=0) + if test "$tk_strtod" = 1; then + AC_MSG_CHECKING([for Solaris 2.4 strtod bug]) + AC_TRY_RUN([ + extern double strtod(); + int main() + { + char *string = "NaN"; + char *term; + strtod(string, &term); + if ((term != string) && (term[-1] == 0)) { + exit(1); + } + exit(0); + }], tk_ok=1, tk_ok=0, tk_ok=0) + if test "$tk_ok" = 1; then + AC_MSG_RESULT(ok) else - AC_MSG_CHECKING(a.out.h) - AC_TRY_COMPILE([#include ],[ - struct exec foo; - unsigned long seek; - int flag; -#if defined(__mips) || defined(mips) - seek = N_TXTOFF (foo.ex_f, foo.ex_o); -#else - seek = N_TXTOFF (foo); -#endif - flag = (foo.a_magic == OMAGIC); - return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry; - ], tcl_ok=usable, tcl_ok=unusable) - AC_MSG_RESULT($tcl_ok) - if test $tcl_ok = usable; then - AC_DEFINE(USE_A_OUT_H) - else - AC_MSG_CHECKING(sys/exec_aout.h) - AC_TRY_COMPILE([#include ],[ - struct exec foo; - unsigned long seek; - int flag; -#if defined(__mips) || defined(mips) - seek = N_TXTOFF (foo.ex_f, foo.ex_o); -#else - seek = N_TXTOFF (foo); -#endif - flag = (foo.a_midmag == OMAGIC); - return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry; - ], tcl_ok=usable, tcl_ok=unusable) - AC_MSG_RESULT($tcl_ok) - if test $tcl_ok = usable; then - AC_DEFINE(USE_SYS_EXEC_AOUT_H) - else - DL_OBJS="" - fi - fi + AC_MSG_RESULT(buggy) + AC_DEFINE(strtod, fixstrtod) fi fi +]) - # Step 5: disable dynamic loading if requested via a command-line switch. +#-------------------------------------------------------------------- +# SC_TCL_LINK_LIBS +# +# Search for the libraries needed to link the Tcl shell. +# Things like the math library (-lm) and socket stuff (-lsocket vs. +# -lnsl) are dealt with here. +# +# Arguments: +# Requires the following vars to be set in the Makefile: +# DL_LIBS +# LIBS +# MATH_LIBS +# +# Results: +# +# Subst's the following var: +# TCL_LIBS +# MATH_LIBS +# +# Might append to the following vars: +# LIBS +# +# Might define the following vars: +# HAVE_NET_ERRNO_H +# +#-------------------------------------------------------------------- - AC_ARG_ENABLE(load, [ --disable-load disallow dynamic loading and "load" command], - [tcl_ok=$enableval], [tcl_ok=yes]) - if test "$tcl_ok" = "no"; then - DL_OBJS="" - fi +AC_DEFUN(SC_TCL_LINK_LIBS, [ + #-------------------------------------------------------------------- + # On a few very rare systems, all of the libm.a stuff is + # already in libc.a. Set compiler flags accordingly. + # Also, Linux requires the "ieee" library for math to work + # right (and it must appear before "-lm"). + #-------------------------------------------------------------------- - if test "x$DL_OBJS" != "x" ; then - BUILD_DLTEST="\$(DLTEST_TARGETS)" - else - echo "Can't figure out how to do dynamic loading or shared libraries" - echo "on this system." - SHLIB_CFLAGS="" - SHLIB_LD="" - SHLIB_SUFFIX="" - DL_OBJS="tclLoadNone.o" - DL_LIBS="" - LD_FLAGS="" - LD_SEARCH_FLAGS="" - BUILD_DLTEST="" - fi + AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm") + AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"]) - # If we're running gcc, then change the C flags for compiling shared - # libraries to the right flags for gcc, instead of those for the - # standard manufacturer compiler. + #-------------------------------------------------------------------- + # On AIX systems, libbsd.a has to be linked in to support + # non-blocking file IO. This library has to be linked in after + # the MATH_LIBS or it breaks the pow() function. The way to + # insure proper sequencing, is to add it to the tail of MATH_LIBS. + # This library also supplies gettimeofday. + #-------------------------------------------------------------------- - if test "$DL_OBJS" != "tclLoadNone.o" ; then - if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then - case $system in - AIX-*) - ;; - BSD/OS*) - ;; - IRIX*) - ;; - NetBSD-*|FreeBSD-*|OpenBSD-*) - ;; - RISCos-*) - ;; - ULTRIX-4.*) - ;; - *) - SHLIB_CFLAGS="-fPIC" - ;; - esac + libbsd=no + if test "`uname -s`" = "AIX" ; then + AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) + if test $libbsd = yes; then + MATH_LIBS="$MATH_LIBS -lbsd" fi fi - if test "$SHARED_LIB_SUFFIX" = "" ; then - SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}${SHLIB_SUFFIX}' + + #-------------------------------------------------------------------- + # Interactive UNIX requires -linet instead of -lsocket, plus it + # needs net/errno.h to define the socket-related error codes. + #-------------------------------------------------------------------- + + AC_CHECK_LIB(inet, main, [LIBS="$LIBS -linet"]) + AC_CHECK_HEADER(net/errno.h, AC_DEFINE(HAVE_NET_ERRNO_H)) + + #-------------------------------------------------------------------- + # 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 "$tcl_checkSocket" = 1; then + AC_CHECK_LIB(socket, main, LIBS="$LIBS -lsocket", tcl_checkBoth=1) fi - if test "$UNSHARED_LIB_SUFFIX" = "" ; then - UNSHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a' + 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, main, + [LIBS="$LIBS -lnsl"])) + + # Don't perform the eval of the libraries here because DL_LIBS + # won't be set until we call SC_CONFIG_CFLAGS - AC_SUBST(DL_LIBS) - AC_SUBST(CFLAGS_DEBUG) - AC_SUBST(CFLAGS_OPTIMIZE) + TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}' + AC_SUBST(TCL_LIBS) + AC_SUBST(MATH_LIBS) ]) -- cgit v0.12