#------------------------------------------------------------------------ # 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]) 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 # 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 ${prefix}/lib 2>/dev/null` \ `ls -d /usr/local/lib 2>/dev/null` ; do if test -f "$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 $i/unix; pwd)` break fi done fi ]) if test x"${ac_cv_c_tclconfig}" = x ; then TCL_BIN_DIR="# no Tcl configs found" AC_MSG_WARN(Can't find Tcl configuration definitions) exit 0 else no_tcl= TCL_BIN_DIR=${ac_cv_c_tclconfig} AC_MSG_RESULT(found $TCL_BIN_DIR/tclConfig.sh) fi fi ]) #------------------------------------------------------------------------ # SC_PATH_TKCONFIG -- # # Locate the tkConfig.sh file # # Arguments: # none # # Results: # # Adds the following arguments to configure: # --with-tk=... # # Defines the following vars: # TK_BIN_DIR Full path to the directory containing # the tkConfig.sh file #------------------------------------------------------------------------ AC_DEFUN(SC_PATH_TKCONFIG, [ # # Ok, lets find the tk configuration # First, look for one uninstalled. # the alternative search directory is invoked by --with-tk # if test x"${no_tk}" = x ; then # we reset no_tk in case something fails here no_tk=true AC_ARG_WITH(tk, [ --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 # 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 ]) #------------------------------------------------------------------------ # 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]) . $TCL_BIN_DIR/tclConfig.sh else AC_MSG_RESULT([file not found]) fi # # The eval is required to do the TCL_DBGX substitution in the # TCL_LIB_FILE variable # eval TCL_LIB_FILE=${TCL_LIB_FILE} eval TCL_LIB_FLAG=${TCL_LIB_FLAG} AC_SUBST(TCL_BIN_DIR) AC_SUBST(TCL_SRC_DIR) AC_SUBST(TCL_LIB_FILE) ]) #------------------------------------------------------------------------ # 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 $TCLCONFIG]) if test -f "$TK_BIN_DIR/tkConfig.sh" ; then AC_MSG_CHECKING([loading $TK_BIN_DIR/tkConfig.sh]) . $TK_BIN_DIR/tkConfig.sh else AC_MSG_RESULT([could not find $TK_BIN_DIR/tkConfig.sh]) fi AC_SUBST(TK_BIN_DIR) AC_SUBST(TK_SRC_DIR) AC_SUBST(TK_LIB_FILE) ]) #------------------------------------------------------------------------ # SC_ENABLE_GCC -- # # Allows the use of GCC if available # # Arguments: # none # # Results: # # Adds the following arguments to configure: # --enable-gcc # # Sets the following vars: # CC Command to use for the compiler #------------------------------------------------------------------------ AC_DEFUN(SC_ENABLE_GCC, [ AC_ARG_ENABLE(gcc, [ --enable-gcc allow use of gcc if available [--disable-gcc]], [ok=$enableval], [ok=no]) if test "$ok" = "yes"; then CC=gcc AC_PROG_CC else CC=${CC-cc} fi ]) #------------------------------------------------------------------------ # 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 "$tcl_ok" = "yes" ; then AC_MSG_RESULT([shared]) SHARED_BUILD=1 else AC_MSG_RESULT([static]) SHARED_BUILD=0 AC_DEFINE(STATIC_BUILD) fi ]) #------------------------------------------------------------------------ # SC_ENABLE_THREADS -- # # Specify if thread support should be enabled # # Arguments: # none # # Results: # # Adds the following arguments to configure: # --enable-threads # # Sets the following vars: # THREADS_LIBS Thread library(s) # # Defines the following vars: # TCL_THREADS # _REENTRANT # #------------------------------------------------------------------------ AC_DEFUN(SC_ENABLE_THREADS, [ AC_MSG_CHECKING(for building with threads) AC_ARG_ENABLE(threads, [ --enable-threads build with threads], [tcl_ok=$enableval], [tcl_ok=no]) if test "$tcl_ok" = "yes"; then AC_MSG_RESULT(yes) TCL_THREADS=1 AC_DEFINE(TCL_THREADS) AC_DEFINE(_REENTRANT) AC_MSG_WARN("Tk on Unix is known to have problems with thread support. It is recommended that Tk be used with a non-thread enabled Tcl.") AC_CHECK_LIB(pthread,pthread_mutex_init,tcl_ok=yes,tcl_ok=no) if test "$tcl_ok" = "yes"; then # The space is needed THREADS_LIBS=" -lpthread" 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 else TCL_THREADS=0 AC_MSG_RESULT(no (default)) fi ]) #------------------------------------------------------------------------ # SC_ENABLE_SYMBOLS -- # # Specify if debugging symbols should be used # # Arguments: # none # # Requires the following vars to be set: # 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=$enableval], [tcl_ok=no]) if test "$tcl_ok" = "yes"; then CFLAGS_DEFAULT="${CFLAGS_DEBUG}" LDFLAGS_DEFAULT="${LDFLAGS_DEBUG}" DBGX=g AC_MSG_RESULT([yes]) else CFLAGS_DEFAULT="${CFLAGS_OPTIMIZE}" LDFLAGS_DEFAULT="${LDFLAGS_OPTIMIZE}" DBGX="" AC_MSG_RESULT([no]) fi ]) #-------------------------------------------------------------------- # 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 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_CONFIG_CFLAGS, [ # Step 0: Enable 64 bit support? AC_MSG_CHECKING([if 64bit support is enabled]) AC_ARG_ENABLE(64bit,[ --enable-64bit enable 64bit support],,enableval="no") 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. 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) # Step 3: set configuration options based on system name and version. 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 $system in AIX-4.[[2-9]]) SHLIB_CFLAGS="" SHLIB_LD=$TCL_SHLIB_LD SHLIB_LD_LIBS='${LIBS}' SHLIB_SUFFIX=".so" DL_OBJS="tclLoadDl.o" DL_LIBS="-ldl ${TCL_BUILD_LIB_SPEC}" LDFLAGS="" LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' TCL_NEEDS_EXP_FILE=1 TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp' ;; AIX-*) SHLIB_CFLAGS="" SHLIB_LD=$TCL_SHLIB_LD SHLIB_LD_LIBS='${LIBS}' SHLIB_SUFFIX=".so" DL_OBJS="tclLoadDl.o" LIBOBJS="$LIBOBJS tclLoadAix.o" DL_LIBS="-lld ${TCL_BUILD_LIB_SPEC}" LDFLAGS="" LD_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}' TCL_NEEDS_EXP_FILE=1 TCL_EXPORT_FILE_SUFFIX='${VERSION}\$\{DBGX\}.exp' ;; BSD/OS-2.1*|BSD/OS-3*) SHLIB_CFLAGS="" SHLIB_LD="shlicc -r" SHLIB_LD_LIBS='${LIBS}' SHLIB_SUFFIX=".so" DL_OBJS="tclLoadDl.o" DL_LIBS="-ldl" LDFLAGS="" LD_SEARCH_FLAGS="" ;; BSD/OS-4.*) SHLIB_CFLAGS="-export-dynamic -fPIC" SHLIB_LD="cc -shared" SHLIB_LD_LIBS='${LIBS}' SHLIB_SUFFIX=".so" DL_OBJS="tclLoadDl.o" DL_LIBS="-ldl" LDFLAGS="-export-dynamic" LD_SEARCH_FLAGS="" ;; dgux*) SHLIB_CFLAGS="-K PIC" SHLIB_LD="cc -G" SHLIB_LD_LIBS="" SHLIB_SUFFIX=".so" DL_OBJS="tclLoadDl.o" DL_LIBS="-ldl" LDFLAGS="" LD_SEARCH_FLAGS="" ;; HP-UX-*.08.*|HP-UX-*.09.*|HP-UX-*.10.*|HP-UX-*.11.*) SHLIB_SUFFIX=".sl" AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no) if test "$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='${VERSION}\$\{DBGX\}.a' ;; IRIX-5.*|IRIX-6.*|IRIX64-6.5*) SHLIB_CFLAGS="" SHLIB_LD="ld -n32 -shared -rdata_shared" SHLIB_LD_LIBS='${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" # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings # when you inline the string and math operations. Turn this off to # get rid of the warnings. CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES" if test "$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 if test "`uname -m`" = "alpha" ; then EXTRA_CFLAGS="-mieee" 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-[[1-2]].*|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='${TCL_TRIM_DOTS}\$\{DBGX\}.a' ]) # FreeBSD doesn't handle version numbers with dots. UNSHARED_LIB_SUFFIX='${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${LIB_RUNTIME_DIR}' # SunOS can't handle version numbers with dots in them in library # specs, like -ltcl7.5, so use -ltcl75 instead. Also, it # requires an extra version number at the end of .so file names. # So, the library has to have a name like libtcl75.so.1.0 SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1.0' UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.a' TCL_LIB_VERSIONS_OK=nodots ;; SunOS-5.[[0-6]]*) SHLIB_CFLAGS="-KPIC" SHLIB_LD="/usr/ccs/bin/ld -G -z text" # Note: need the LIBS below, otherwise Tk won't find Tcl's # symbols when dynamically loaded into tclsh. SHLIB_LD_LIBS='${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 $system") fi else AC_MSG_WARN("64bit mode only supported sparcv9 system") fi fi # Note: need the LIBS below, otherwise Tk won't find Tcl's # symbols when dynamically loaded into tclsh. SHLIB_LD_LIBS='${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 $found = yes; then LDFLAGS="-Wl,-Bexport" else LDFLAGS="" fi LD_SEARCH_FLAGS="" ;; esac if test "$do64bit" = "yes" -a "$do64bit_ok" = "no" ; then AC_MSG_WARN("64bit support being disabled -- not supported on this platform") fi # Step 4: If pseudo-static linking is in use (see K. B. Kenny, "Dynamic # Loading for Tcl -- What Became of It?". Proc. 2nd Tcl/Tk Workshop, # New Orleans, LA, Computerized Processes Unlimited, 1994), then we need # to determine which of several header files defines the a.out file # format (a.out.h, sys/exec.h, or sys/exec_aout.h). At present, we # support only a file format that is more or less version-7-compatible. # In particular, # - a.out files must begin with `struct exec'. # - the N_TXTOFF on the `struct exec' must compute the seek address # of the text segment # - The `struct exec' must contain a_magic, a_text, a_data, a_bss # and a_entry fields. # The following compilation should succeed if and only if either sys/exec.h # or a.out.h is usable for the purpose. # # Note that the modified COFF format used on MIPS Ultrix 4.x is usable; the # `struct exec' includes a second header that contains information that # duplicates the v7 fields that are needed. if test "x$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 $tcl_ok = usable; then AC_DEFINE(USE_SYS_EXEC_H) else AC_MSG_CHECKING(a.out.h) AC_TRY_COMPILE([#include ],[ struct exec foo; unsigned long seek; int flag; #if defined(__mips) || defined(mips) seek = N_TXTOFF (foo.ex_f, foo.ex_o); #else seek = N_TXTOFF (foo); #endif flag = (foo.a_magic == OMAGIC); return foo.a_text + foo.a_data + foo.a_bss + foo.a_entry; ], tcl_ok=usable, tcl_ok=unusable) AC_MSG_RESULT($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 $tcl_ok = usable; then AC_DEFINE(USE_SYS_EXEC_AOUT_H) else DL_OBJS="" fi fi fi fi # Step 5: disable dynamic loading if requested via a command-line switch. AC_ARG_ENABLE(load, [ --disable-load disallow dynamic loading and "load" command], [tcl_ok=$enableval], [tcl_ok=yes]) if test "$tcl_ok" = "no"; then DL_OBJS="" fi if test "x$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 # 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. if test "$DL_OBJS" != "tclLoadNone.o" ; then if test "$CC" = "gcc" -o `$CC -v 2>&1 | grep -c gcc` != "0" ; then case $system in AIX-*) ;; BSD/OS*) ;; IRIX*) ;; NetBSD-*|FreeBSD-*|OpenBSD-*) ;; RISCos-*) ;; ULTRIX-4.*) ;; *) SHLIB_CFLAGS="-fPIC" ;; esac fi fi if test "$SHARED_LIB_SUFFIX" = "" ; then SHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}${SHLIB_SUFFIX}' fi if test "$UNSHARED_LIB_SUFFIX" = "" ; then UNSHARED_LIB_SUFFIX='${VERSION}\$\{DBGX\}.a' fi AC_SUBST(DL_LIBS) AC_SUBST(CFLAGS_DEBUG) AC_SUBST(CFLAGS_OPTIMIZE) ]) #-------------------------------------------------------------------- # SC_SERIAL_PORT # # Determine which interface to use to talk to the serial port. # Note that #include lines must begin in leftmost column for # some compilers to recognize them as preprocessor directives. # # Arguments: # none # # Results: # # Defines only one of the following vars: # USE_TERMIOS # USE_TERMIO # USE_SGTTY # #-------------------------------------------------------------------- AC_DEFUN(SC_SERIAL_PORT, [ AC_MSG_CHECKING([termios vs. termio vs. sgtty]) AC_TRY_RUN([ #include 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) if test $tk_ok = termios; then AC_DEFINE(USE_TERMIOS) 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) if test $tk_ok = termio; then AC_DEFINE(USE_TERMIO) 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 $tk_ok = sgtty; then AC_DEFINE(USE_SGTTY) fi fi fi AC_MSG_RESULT($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 ? # #-------------------------------------------------------------------- AC_DEFUN(SC_MISSING_POSIX_HEADERS, [ 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 # #-------------------------------------------------------------------- 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 case $system in # There used to be code here to use FIONBIO under AIX. However, it # was reported that FIONBIO doesn't work under AIX 3.2.5. Since # using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO # code (JO, 5/31/97). OSF*) AC_DEFINE(USE_FIONBIO) AC_MSG_RESULT(FIONBIO) ;; SunOS-4*) AC_DEFINE(USE_FIONBIO) AC_MSG_RESULT(FIONBIO) ;; ULTRIX-4.*) AC_DEFINE(USE_FIONBIO) AC_MSG_RESULT(FIONBIO) ;; *) AC_MSG_RESULT(O_NONBLOCK) ;; esac ]) #-------------------------------------------------------------------- # SC_HAVE_VFORK # # Check to see whether the system provides a vfork kernel call. # If not, then use fork instead. Also, check for a problem with # vforks and signals that can cause core dumps if a vforked child # resets a signal handler. If the problem exists, then use fork # instead of vfork. # # Arguments: # none # # Results: # # Defines some of the following vars: # vfork (=fork) # #-------------------------------------------------------------------- AC_DEFUN(SC_HAVE_VFORK, [ AC_TYPE_SIGNAL() AC_CHECK_FUNC(vfork, tcl_ok=1, tcl_ok=0) if test "$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 "`uname -s`" = "AIX" ; then AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes) if test $libbsd = yes; then AC_DEFINE(USE_DELTA_FOR_TZ) fi fi ]) #-------------------------------------------------------------------- # SC_BUGGY_STRTOD # # Under Solaris 2.4, strtod returns the wrong value for the # terminating character under some conditions. Check for this # and if the problem exists use a substitute procedure # "fixstrtod" (provided by Tcl) that corrects the error. # # Arguments: # none # # Results: # # Might defines some of the following vars: # strtod (=fixstrtod) # #-------------------------------------------------------------------- AC_DEFUN(SC_BUGGY_STRTOD, [ AC_CHECK_FUNC(strtod, tk_strtod=1, tk_strtod=0) if test "$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_RESULT(buggy) AC_DEFINE(strtod, fixstrtod) 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 # #-------------------------------------------------------------------- AC_DEFUN(SC_TCL_LINK_LIBS, [ #-------------------------------------------------------------------- # On a few very rare systems, all of the libm.a stuff is # already in libc.a. Set compiler flags accordingly. # Also, Linux requires the "ieee" library for math to work # right (and it must appear before "-lm"). #-------------------------------------------------------------------- AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm") AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"]) #-------------------------------------------------------------------- # 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. #-------------------------------------------------------------------- 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 #-------------------------------------------------------------------- # 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="$LIBS -lsocket", tcl_checkBoth=1) fi if test "$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 TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}' AC_SUBST(TCL_LIBS) AC_SUBST(MATH_LIBS) ])