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dnl tcl.m4: an autoconf Tcl locator
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dnl The command-line arguments are overcomplicated.
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dnl There are doubtlessly others...
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dnl To use this macro, just do MLX_LANG_TCL. It outputs
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dnl TCL_LIBS, TCL_CPPFLAGS, and TCL_DEFS and SUBSTs them.
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dnl If successful, these have stuff in them. If not, they're empty.
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dnl If not successful, with_tcl has the value "no".
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AC_DEFUN([MLX_LANG_TCL], [
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# --- BEGIN MLX_LANG_TCL ---
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dnl To link against Tcl, configure does several things to make my life
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dnl * maybe ask the user where they think Tcl lives, and try to find it
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dnl * maybe ask the user what "tclsh" is called this week (i.e., "tclsh8.0")
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dnl * run tclsh, ask it for a path, then run that path through sed
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dnl * sanity check its result (many installs are a little broken)
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dnl * try to figure out where Tcl is based on this result
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dnl * try to guess where the Tcl include files are
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dnl Notes from previous incarnations:
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dnl > XXX MUST CHECK FOR TCL BEFORE KERBEROS V4 XXX
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dnl > This is because some genius at MIT named one of the Kerberos v4
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dnl > library functions log(). This of course conflicts with the
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dnl > logarithm function in the standard math library, used by Tcl.
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dnl > Checking for Tcl first puts -lm before -lkrb on the library list.
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dnl do not do anything if we are in disabled libcheck mode...
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if test "x$libcheck" = "xtrue"; then
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dnl Check for some information from the user on what the world looks like
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AC_ARG_WITH(tclconfig,[ --with-tclconfig=PATH use tclConfig.sh from PATH
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(configure gets Tcl configuration from here)],
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dnl trim tclConfig.sh off the end so we can add it back on later.
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TclLibBase=`echo ${withval} | sed s/tclConfig.sh\$//`)
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AC_ARG_WITH(tcl, [ --with-tcl=PATH use Tcl from PATH],
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TclLibBase="${withval}/lib")
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AC_ARG_WITH(tclsh, [ --with-tclsh=TCLSH use TCLSH as the tclsh program
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(let configure find Tcl using this program)],
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if test "x$TCLSH" = "xno" -o "x$with_tclconfig" = "xno" ; then
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AC_MSG_WARN([Tcl disabled because tclsh or tclconfig specified as "no"])
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if test "x$with_tcl" != xno; then
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if test \! -z "$with_tclconfig" -a \! -d "$with_tclconfig" ; then
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AC_MSG_ERROR([--with-tclconfig requires a directory argument.])
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if test \! -z "$TCLSH" -a \! -x "$TCLSH" ; then
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AC_MSG_ERROR([--with-tclsh must specify an executable file.])
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if test X"$TclLibBase" = X; then # do we already know?
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# No? Run tclsh and ask it where it lives.
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# Do we know where a tclsh lives?
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if test X"$TCLSH" = X; then
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# Try and find tclsh. Any tclsh.
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# If a new version of tcl comes out and unfortunately adds another
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# filename, it should be safe to add it (to the front of the line --
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# somef vendors have older, badly installed tclshs that we want to avoid
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AC_PATH_PROGS(TCLSH, [tclsh tclsh8.3 tclsh8.4], "unknown")
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# Do we know where to get a tclsh?
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if test "X${TCLSH}" != "Xunknown"; then
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AC_MSG_CHECKING([where Tcl says it lives])
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dnl to avoid .tclshrc issues use from a file...
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echo "puts \$tcl_library" > /tmp/tcl.conf.$$
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TclLibBase=`${TCLSH} /tmp/tcl.conf.$$ | sed -e 's,[^/]*$,,'`
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AC_MSG_RESULT($TclLibBase)
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if test -z "$TclLibBase" ; then
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AC_MSG_RESULT([can't find tclsh])
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AC_MSG_WARN([can't find Tcl installtion; use of Tcl disabled.])
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AC_MSG_CHECKING([for tclConfig.sh])
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# Check a list of places where the tclConfig.sh file might be.
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# Note we prefer the 64 bit version if exists
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tclCondifSearchPath="$tclCondifSearchPath ${TclLibBase}"
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tclCondifSearchPath="$tclCondifSearchPath ${TclLibBase}/.."
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tclCondifSearchPath="$tclCondifSearchPath `echo ${TCLSH} | sed s/sh//`"
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tclCondifSearchPath="$tclCondifSearchPath /usr/lib64"
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tclCondifSearchPath="$tclCondifSearchPath /usr/lib"
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tclCondifSearchPath="$tclCondifSearchPath /usr/local/lib"
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for tcldir in $tclCondifSearchPath; do
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if test -f "${tcldir}/tclConfig.sh"; then
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TclLibBase="${tcldir}"
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if test -z "${TclLibBase}" ; then
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AC_MSG_RESULT("unknown")
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AC_MSG_WARN([can't find Tcl configuration; use of Tcl disabled.])
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AC_MSG_RESULT(${TclLibBase}/)
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if test "X${with_tcl}" != Xno ; then
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AC_MSG_CHECKING([Tcl configuration on what Tcl needs to compile])
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. ${TclLibBase}/tclConfig.sh
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dnl no TK stuff for us.
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dnl . ${TclLibBase}/tkConfig.sh
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dnl We hack the provided TCL_LIB_SPEC since it is using the /usr/lib even
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dnl if the build was using lib64
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if test -d /usr/lib64 ; then
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TCL_LIB_SPEC=`echo ${TCL_LIB_SPEC} | sed 's=/usr/lib =/usr/lib64 =g'`
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if test "X${with_tcl}" != Xno ; then
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dnl Now, hunt for the Tcl include files, since we don't strictly
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dnl know where they are; some folks put them (properly) in the
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dnl default include path, or maybe in /usr/local; the *BSD folks
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dnl put them in other places.
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AC_MSG_CHECKING([where Tcl includes are])
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for tclinclude in "${TCL_PREFIX}/include/tcl${TCL_VERSION}" \
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"${TCL_PREFIX}/include/tcl" \
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"${TCL_PREFIX}/include" ; do
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if test -r "${tclinclude}/tcl.h" ; then
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TCL_CPPFLAGS="-I${tclinclude}"
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if test X"${TCL_CPPFLAGS}" = X ; then
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AC_MSG_WARN(can't find Tcl includes; use of Tcl disabled.)
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AC_MSG_RESULT(${TCL_CPPFLAGS})
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# Finally, pick up the Tcl configuration if we haven't found an
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if test "X${with_tcl}" != Xno; then
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dnl TCL_LIBS="${TK_LIB_SPEC} ${TK_XLIBSW} ${TCL_LD_SEARCH_FLAGS} ${TCL_LIB_SPEC}"
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dnl we are using libtool so need to convert to -rpath if at all
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TCL_SEARCH=`echo ${TCL_LD_SEARCH_FLAGS} | sed 's/-Wl,-rpath,/-rpath/'`
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dnl sometimes we got empty libs: use TCL_LIB_FILE
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if test X"$TCL_LIBS" = X; then
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dnl extract the lib style name...
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TCL_LIBS=`echo ${TCL_LIB_FILE} | sed 's/lib\([[^ \t]]*\)\.\(so\|a\)/-l\1/'`
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dnl sometimes we got empty libs: use TCL_LIB_SPEC
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if test X"$TCL_LIB_SPEC" = X; then
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dnl extract the lib style name...
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TCL_LIB_SPEC='-L/usr/lib'
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TCL_LIBS1="${TCL_LIB_SPEC} ${TCL_LIBS}"
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dnl Filter out the ieee - I do not see a shared version for it.
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TCL_LIBS=`echo ${TCL_LIBS1} | sed 's/-lieee//'`
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dnl disbled libcheck mode - we do not need anything...
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TCL_CPPFLAGS=disabled
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AC_SUBST(TCL_CPPFLAGS)
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# --- END MLX_LANG_TCL ---
added
removed
ibis/config/tcl.m4
