Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.astro.louisville.edu/software/sbig/archive/xmccd-4.1/xmccd-4.1e/xpa-2.1.14/tcl.m4 Дата изменения: Thu Mar 27 01:00:50 2003 Дата индексирования: Thu Feb 27 21:58:09 2014 Кодировка: Поисковые слова: твердое состояние

#------------------------------------------------------------------------
# SC_PATH_TCLCONFIG --
#
# Locate the tclConfig.sh file and perform a sanity check on
# the Tcl compile flags
#
# Arguments:
# none
#
# Results:
#
# Adds the following arguments to configure:
# --with-tcl=...
#
# Defines the following vars:
# TCL_BIN_DIR Full path to the directory containing
# the tclConfig.sh file
#------------------------------------------------------------------------

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

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

# First check to see if --with-tcl was specified.
if test x"${with_tclconfig}" != x ; then
if test -f "${with_tclconfig}/tclConfig.sh" ; then
ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
else
AC_MSG_RESULT([${with_tclconfig} directory doesn't contain tclConfig.sh])
fi
fi

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

# check in a few common install locations
if test x"${ac_cv_c_tclconfig}" = x ; then
for i in `ls -d ${libdir} 2>/dev/null` \
`ls -d /usr/local/lib 2>/dev/null` \
`ls -d /usr/contrib/lib 2>/dev/null` \
`ls -d /usr/lib 2>/dev/null` \
; do
if test -f "$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_tclconfig}" = 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
])
else
AC_MSG_RESULT(skipping Tcl configuration)
ac_cv_c_tclconfig="none"
fi

if test x"${ac_cv_c_tclconfig}" = x ; then
TCL_BIN_DIR="# no Tcl configs found"
AC_MSG_RESULT(can't find Tcl configuration definitions)
# no Tcl is OK egm 03/25/03
# AC_MSG_WARN(Can't find Tcl configuration definitions)
# exit 0
elif test x"${ac_cv_c_tclconfig}" = xnone ; then
TCL_BIN_DIR=""
else
no_tcl=
TCL_BIN_DIR=${ac_cv_c_tclconfig}
AC_MSG_RESULT(found $TCL_BIN_DIR/tclConfig.sh)
fi
fi
])

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

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

if test x"${no_tk}" = x ; then
# we reset no_tk in case something fails here
no_tk=true
AC_ARG_WITH(tk, [ --with-tk directory containing tk configuration (tkConfig.sh)], with_tkconfig=${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 ${with_tkconfig}; pwd)`
else
AC_MSG_RESULT([${with_tkconfig} directory doesn't contain tkConfig.sh])
fi
fi

# then check for a private Tk library
if test x"${ac_cv_c_tkconfig}" = x ; then
for i in \
../tk \
`ls -dr ../tk[[8-9]].[[0-9]]* 2>/dev/null` \
../../tk \
`ls -dr ../../tk[[8-9]].[[0-9]]* 2>/dev/null` \
../../../tk \
`ls -dr ../../../tk[[8-9]].[[0-9]]* 2>/dev/null` ; do
if test -f "$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 ${libdir} 2>/dev/null` \
`ls -d /usr/local/lib 2>/dev/null` \
`ls -d /usr/contrib/lib 2>/dev/null` \
`ls -d /usr/lib 2>/dev/null` \
; do
if test -f "$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_RESULT(can't find Tk configuration definitions)
# no Tk is OK egm 03/25/03
# AC_MSG_WARN(Can't find Tk configuration definitions)
# exit 0
else
no_tk=
TK_BIN_DIR=${ac_cv_c_tkconfig}
AC_MSG_RESULT(found $TK_BIN_DIR/tkConfig.sh)
fi
fi

])

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

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

if test -f "$TCL_BIN_DIR/tclConfig.sh" ; then
AC_MSG_RESULT([loading])
. $TCL_BIN_DIR/tclConfig.sh
else
AC_MSG_RESULT([file not found])
fi

#
# If the TCL_BIN_DIR is the build directory (not the install directory),
# then set the common variable name to the value of the build variables.
# For example, the variable TCL_LIB_SPEC will be set to the value
# of TCL_BUILD_LIB_SPEC. An extension should make use of TCL_LIB_SPEC
# instead of TCL_BUILD_LIB_SPEC since it will work with both an
# installed and uninstalled version of Tcl.
#

if test -f $TCL_BIN_DIR/Makefile ; then
TCL_LIB_SPEC=${TCL_BUILD_LIB_SPEC}
TCL_STUB_LIB_SPEC=${TCL_BUILD_STUB_LIB_SPEC}
TCL_STUB_LIB_PATH=${TCL_BUILD_STUB_LIB_PATH}
fi

#
# eval is required to do the TCL_DBGX substitution
#

eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""

eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""

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

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

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

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

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

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

AC_SUBST(TK_VERSION)
AC_SUBST(TK_BIN_DIR)
AC_SUBST(TK_SRC_DIR)
AC_SUBST(TK_LIB_FILE)
])

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

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

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

if test "$tcl_ok" = "yes" ; then
AC_MSG_RESULT([shared])
SHARED_BUILD=1
else
AC_MSG_RESULT([static])
SHARED_BUILD=0
AC_DEFINE(STATIC_BUILD)
fi
])

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

AC_DEFUN(SC_ENABLE_FRAMEWORK, [
AC_MSG_CHECKING([how to package libraries])
AC_ARG_ENABLE(framework,
[ --enable-framework package shared libraries in frameworks [--disable-framework]],
[tcl_ok=$enableval], [tcl_ok=no])

if test "${enable_framework+set}" = set; then
enableval="$enable_framework"
tcl_ok=$enableval
else
tcl_ok=no
fi

if test "$tcl_ok" = "yes" ; then
AC_MSG_RESULT([framework])
FRAMEWORK_BUILD=1
if test "${SHARED_BUILD}" = "0" ; then
AC_MSG_WARN("Frameworks can only be built if --enable-shared is yes")
FRAMEWORK_BUILD=0
fi
else
AC_MSG_RESULT([standard shared library])
FRAMEWORK_BUILD=0
fi
])

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

AC_DEFUN(SC_ENABLE_THREADS, [
AC_MSG_CHECKING(for building with threads)
AC_ARG_ENABLE(threads, [ --enable-threads build with threads],
[tcl_ok=$enableval], [tcl_ok=no])

if test "$tcl_ok" = "yes"; then
AC_MSG_RESULT(yes)
TCL_THREADS=1
AC_DEFINE(TCL_THREADS)
# USE_THREAD_ALLOC tells us to try the special thread-based
# allocator that significantly reduces lock contention
AC_DEFINE(USE_THREAD_ALLOC)
AC_DEFINE(_REENTRANT)
AC_DEFINE(_THREAD_SAFE)
AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
if test "$tcl_ok" = "no"; then
# Check a little harder for __pthread_mutex_init in the same
# library, as some systems hide it there until pthread.h is
# defined. We could alternatively do an AC_TRY_COMPILE with
# pthread.h, but that will work with libpthread really doesn't
# exist, like AIX 4.2. [Bug: 4359]
AC_CHECK_LIB(pthread,__pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
fi

if test "$tcl_ok" = "yes"; then
# The space is needed
THREADS_LIBS=" -lpthread"
else
AC_CHECK_LIB(pthreads,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
if test "$tcl_ok" = "yes"; then
# The space is needed
THREADS_LIBS=" -lpthreads"
else
AC_CHECK_LIB(c,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
if test "$tcl_ok" = "no"; then
AC_CHECK_LIB(c_r,pthread_mutex_init,tcl_ok=yes,tcl_ok=no)
if test "$tcl_ok" = "yes"; then
# The space is needed
THREADS_LIBS=" -pthread"
else
TCL_THREADS=0
AC_MSG_WARN("Don t know how to find pthread lib on your system - you must disable thread support or edit the LIBS in the Makefile...")
fi
fi
fi
fi

# Does the pthread-implementation provide
# 'pthread_attr_setstacksize' ?

ac_saved_libs=$LIBS
LIBS="$LIBS $THREADS_LIBS"
AC_CHECK_FUNCS(pthread_attr_setstacksize)
LIBS=$ac_saved_libs
AC_CHECK_FUNCS(readdir_r)
else
TCL_THREADS=0
AC_MSG_RESULT([no (default)])
fi
AC_SUBST(TCL_THREADS)
])

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

AC_DEFUN(SC_ENABLE_SYMBOLS, [
AC_MSG_CHECKING([for build with symbols])
AC_ARG_ENABLE(symbols, [ --enable-symbols build with debugging symbols [--disable-symbols]], [tcl_ok=$enableval], [tcl_ok=no])
# FIXME: Currently, LDFLAGS_DEFAULT is not used, it should work like CFLAGS_DEFAULT.
if test "$tcl_ok" = "no"; then
CFLAGS_DEFAULT='$(CFLAGS_OPTIMIZE)'
LDFLAGS_DEFAULT='$(LDFLAGS_OPTIMIZE)'
DBGX=""
AC_MSG_RESULT([no])
else
CFLAGS_DEFAULT='$(CFLAGS_DEBUG)'
LDFLAGS_DEFAULT='$(LDFLAGS_DEBUG)'
DBGX=g
if test "$tcl_ok" = "yes"; then
AC_MSG_RESULT([yes (standard debugging)])
fi
fi
AC_SUBST(CFLAGS_DEFAULT)
AC_SUBST(LDFLAGS_DEFAULT)

if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then
AC_DEFINE(TCL_MEM_DEBUG)
fi

if test "$tcl_ok" = "compile" -o "$tcl_ok" = "all"; then
AC_DEFINE(TCL_COMPILE_DEBUG)
AC_DEFINE(TCL_COMPILE_STATS)
fi

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

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

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

HAVE_LANGINFO=0
if test "$langinfo_ok" = "yes"; then
if test "$langinfo_ok" = "yes"; then
AC_CHECK_HEADER(langinfo.h,[langinfo_ok=yes],[langinfo_ok=no])
fi
fi
AC_MSG_CHECKING([whether to use nl_langinfo])
if test "$langinfo_ok" = "yes"; then
AC_TRY_COMPILE([#include ],
[nl_langinfo(CODESET);],[langinfo_ok=yes],[langinfo_ok=no])
if test "$langinfo_ok" = "no"; then
langinfo_ok="no (could not compile with nl_langinfo)";
fi
if test "$langinfo_ok" = "yes"; then
AC_DEFINE(HAVE_LANGINFO)
fi
fi
AC_MSG_RESULT([$langinfo_ok])
])

#--------------------------------------------------------------------
# SC_CONFIG_MANPAGES
#
# Decide whether to use symlinks for linking the manpages and
# whether to compress the manpages after installation.
#
# Arguments:
# none
#
# Results:
#
# Adds the following arguments to configure:
# --enable-man-symlinks
# --enable-man-compression=PROG
#
# Defines the following variable:
#
# MKLINKS_FLAGS - The apropriate flags for mkLinks
# according to the user's selection.
#
#--------------------------------------------------------------------
AC_DEFUN(SC_CONFIG_MANPAGES, [

AC_MSG_CHECKING([whether to use symlinks for manpages])
AC_ARG_ENABLE(man-symlinks,
[ --enable-man-symlinks use symlinks for the manpages],
test "$enableval" != "no" && MKLINKS_FLAGS="$MKLINKS_FLAGS --symlinks",
enableval="no")
AC_MSG_RESULT([$enableval])

AC_MSG_CHECKING([compression for manpages])
AC_ARG_ENABLE(man-compression,
[ --enable-man-compression=PROG
compress the manpages with PROG],
test "$enableval" = "yes" && echo && AC_MSG_ERROR([missing argument to --enable-man-compression])
test "$enableval" != "no" && MKLINKS_FLAGS="$MKLINKS_FLAGS --compress $enableval",
enableval="no")
AC_MSG_RESULT([$enableval])

AC_SUBST(MKLINKS_FLAGS)
])

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

AC_DEFUN(SC_CONFIG_CFLAGS, [

# Step 0.a: Enable 64 bit support?

AC_MSG_CHECKING([if 64bit support is requested])
AC_ARG_ENABLE(64bit,[ --enable-64bit enable 64bit support (where applicable)],,enableval="no")

if test "$enableval" = "yes"; then
do64bit=yes
else
do64bit=no
fi
AC_MSG_RESULT($do64bit)

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

AC_MSG_CHECKING([if 64bit Sparc VIS support is requested])
AC_ARG_ENABLE(64bit-vis,[ --enable-64bit-vis enable 64bit Sparc VIS support],,enableval="no")

if test "$enableval" = "yes"; then
# Force 64bit on with VIS
do64bit=yes
do64bitVIS=yes
else
do64bitVIS=no
fi
AC_MSG_RESULT($do64bitVIS)

# 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.

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
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

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

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

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

AC_REQUIRE([AC_PROG_RANLIB])

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

do64bit_ok=no
EXTRA_CFLAGS=""
TCL_EXPORT_FILE_SUFFIX=""
UNSHARED_LIB_SUFFIX=""
TCL_TRIM_DOTS='`echo ${VERSION} | tr -d .`'
ECHO_VERSION='`echo ${VERSION}`'
TCL_LIB_VERSIONS_OK=ok
CFLAGS_DEBUG=-g
CFLAGS_OPTIMIZE=-O
if test "$GCC" = "yes" ; then
CFLAGS_WARNING="-Wall -Wconversion -Wno-implicit-int"
else
CFLAGS_WARNING=""
fi
TCL_NEEDS_EXP_FILE=0
TCL_BUILD_EXP_FILE=""
TCL_EXP_FILE=""
dnl FIXME: Replace AC_CHECK_PROG with AC_CHECK_TOOL once cross compiling is fixed.
dnl AC_CHECK_TOOL(AR, ar)
AC_CHECK_PROG(AR, ar, ar)
if test "${AR}" = "" ; then
AC_MSG_ERROR([Required archive tool 'ar' not found on PATH.])
fi
STLIB_LD='${AR} cr'
LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH"
PLAT_OBJS=""
case $system in
AIX-5.*)
if test "${TCL_THREADS}" = "1" -a "$GCC" != "yes" ; then
# AIX requires the _r compiler when gcc isn't being used
if test "${CC}" != "cc_r" ; then
CC=${CC}_r
fi
AC_MSG_RESULT(Using $CC for compiling with threads)
fi
LIBS="$LIBS -lc"
# AIX-5 uses ELF style dynamic libraries
SHLIB_CFLAGS=""
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
if test "`uname -m`" = "ia64" ; then
# AIX-5 uses ELF style dynamic libraries on IA-64, but not PPC
SHLIB_LD="/usr/ccs/bin/ld -G -z text"
# AIX-5 has dl* in libc.so
DL_LIBS=""
if test "$GCC" = "yes" ; then
CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
else
CC_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
fi
LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
else
SHLIB_LD="${TCL_SRC_DIR}/unix/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
DL_LIBS="-ldl"
CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
TCL_NEEDS_EXP_FILE=1
TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'
fi

# Note: need the LIBS below, otherwise Tk won't find Tcl's
# symbols when dynamically loaded into tclsh.

DL_OBJS="tclLoadDl.o"
LDFLAGS=""

LD_LIBRARY_PATH_VAR="LIBPATH"

# Check to enable 64-bit flags for compiler/linker
if test "$do64bit" = "yes" ; then
if test "$GCC" = "yes" ; then
AC_MSG_WARN("64bit mode not supported with GCC on $system")
else
do64bit_ok=yes
EXTRA_CFLAGS="-q64"
LDFLAGS="-q64"
RANLIB="${RANLIB} -X64"
AR="${AR} -X64"
SHLIB_LD_FLAGS="-b64"
fi
fi
;;
AIX-*)
if test "${TCL_THREADS}" = "1" -a "$GCC" != "yes" ; then
# AIX requires the _r compiler when gcc isn't being used
if test "${CC}" != "cc_r" ; then
CC=${CC}_r
fi
AC_MSG_RESULT(Using $CC for compiling with threads)
fi
LIBS="$LIBS -lc"
SHLIB_CFLAGS=""
SHLIB_LD="${TCL_SRC_DIR}/unix/ldAix /bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
SHLIB_LD_LIBS='${LIBS}'
SHLIB_SUFFIX=".so"
DL_OBJS="tclLoadDl.o"
DL_LIBS="-ldl"
LDFLAGS=""
CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
LD_LIBRARY_PATH_VAR="LIBPATH"
TCL_NEEDS_EXP_FILE=1
TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp'

# AIX v<=4.1 has some different flags than 4.2+
if test "$system" = "AIX-4.1" -o "`uname -v`" -lt "4" ; then
# upgrade to 2.5x egm 3/25/03
AC_LIBOBJ(tclLoadAix.o)
HAVE_COMPAT=true
DL_LIBS="-lld"
fi

# On AIX <=v4 systems, libbsd.a has to be linked in to support
# non-blocking file IO. This library has to be linked in after