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dnl FIRST PASS AFTER STEALING THIS FROM CYRUS! |
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dnl USE AT YOUR OWN PERIL! |
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dnl I MEAN IT! |
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dnl |
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dnl tcl.m4: an autoconf Tcl locator |
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dnl $Id: tcl.m4,v 1.3 2002/05/25 19:57:42 leg Exp $ |
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dnl |
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dnl This is rob's Tcl macro, fixed by tjs. It may need occasional tweaking, |
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dnl but until the next impediment to compilation, it's fill-in-the-blank, |
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dnl and it should be able to do reasonable things with user input. |
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dnl |
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dnl This will probably just work on Andrew systems, but given the variety |
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dnl and apparent creativity of people who compile Tcl elsewhere, I don't know |
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dnl what it will do. I have yet to see an autoconf Tcl test that users were |
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dnl happy with. |
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dnl |
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dnl BUGS |
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dnl The command-line arguments are overcomplicated. |
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dnl There are doubtlessly others... |
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|
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dnl To use this macro, just do CMU_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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|
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AC_DEFUN(CMU_TCL, [ |
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# --- BEGIN CMU_TCL --- |
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dnl To link against Tcl, configure does several things to make my life |
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dnl "easier". |
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dnl |
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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 |
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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 |
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dnl > Checking for Tcl first puts -lm before -lkrb on the library list. |
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dnl |
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|
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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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TCLSH="${withval}") |
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|
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if test "$TCLSH" = "no" -o "$with_tclconfig" = "no" ; then |
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AC_MSG_WARN([Tcl disabled because tclsh or tclconfig specified as "no"]) |
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with_tcl=no |
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fi |
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|
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if test "$with_tcl" != "no"; 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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fi |
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|
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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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fi |
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|
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if test -z "$TclLibBase"; then # do we already know? |
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# No? Run tclsh and ask it where it lives. |
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|
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# Do we know where a tclsh lives? |
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if test -z "$TCLSH"; 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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# if we can) |
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AC_PATH_PROGS(TCLSH, [tclsh8.1 tclsh8.0 tclsh], "unknown") |
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fi |
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|
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# Do we know where to get a tclsh? |
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if test "${TCLSH}" != "unknown"; then |
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AC_MSG_CHECKING([where Tcl says it lives]) |
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TclLibBase=`echo puts \\\$tcl_library | ${TCLSH} | sed -e 's,[^/]*$,,'` |
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AC_MSG_RESULT($TclLibBase) |
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fi |
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fi |
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|
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if test -z "$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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with_tcl=no |
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else |
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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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for tcldir in "${TclLibBase}" \ |
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"${TclLibBase}/.." \ |
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"${TclLibBase}"`echo ${TCLSH} | sed s/sh//` ; do |
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if test -f "${tcldir}/tclConfig.sh"; then |
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TclLibBase="${tcldir}" |
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break |
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fi |
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done |
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|
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if test -z "${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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with_tcl=no |
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else |
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AC_MSG_RESULT(${TclLibBase}/) |
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fi |
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|
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if test "${with_tcl}" != no ; 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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AC_MSG_RESULT(ok) |
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dnl no TK stuff for us. |
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dnl . ${TclLibBase}/tkConfig.sh |
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fi |
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|
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if test "${with_tcl}" != no ; 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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break |
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fi |
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done |
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if test -z "${TCL_CPPFLAGS}" ; then |
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AC_MSG_WARN(can't find Tcl includes; use of Tcl disabled.) |
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with_tcl=no |
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fi |
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AC_MSG_RESULT(${TCL_CPPFLAGS}) |
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fi |
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|
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# Finally, pick up the Tcl configuration if we haven't found an |
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# excuse not to. |
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if test "${with_tcl}" != no; then |
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dnl TCL_LIBS="${TK_LIB_SPEC} ${TK_XLIBSW} ${TCL_LD_SEARCH_FLAGS} ${TCL_LIB_SPEC}" |
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TCL_LIBS="${TCL_LD_SEARCH_FLAGS} ${TCL_LIB_SPEC} ${TCL_LIBS}" |
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fi |
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fi |
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fi |
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|
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AC_SUBST(TCL_DEFS) |
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AC_SUBST(TCL_LIBS) |
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AC_SUBST(TCL_CPPFLAGS) |
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|
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# --- END CMU_TCL --- |
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]) dnl CMU_TCL |
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