configure.in

   1 AC_INIT(Makefile.in)
   2
   3 rm -f config.build-subdirs
   4
   5 . $srcdir/GUILE-VERSION
   6
   7 all_subdirs=`cat $srcdir/*/PLUGIN/REQ $srcdir/*/PLUGIN/OPT /dev/null | tsort | xargs echo`
   8 req_subdirs=`cat $srcdir/*/PLUGIN/REQ /dev/null | tsort | xargs echo`
   9 opt_subdirs=`cat $srcdir/*/PLUGIN/OPT /dev/null | tsort | xargs echo`
  10
  11 AC_CONFIG_SUBDIRS($all_subdirs)
  12 existingdirs=
  13 for d in $all_subdirs; do
  14   if test -d $srcdir/$d ; then
  15     existingdirs="$existingdirs $d"
  16     if test "x$verbose" = xyes; then
  17        if test -f $srcdir/$d/PLUGIN/greet ; then
  18           cat $srcdir/$d/PLUGIN/greet
  19        else
  20          echo ===
  21          echo === Configuring plug-in component $d
  22          echo ===
  23        fi
  24     fi
  25   fi
  26 done
  27
  28 for d in $req_subdirs; do
  29   if test ! -d $srcdir/$d ; then
  30     echo "*******"
  31     echo "*******"
  32     echo "**\+/**"
  33     echo "**=*=**" ERROR: Missing required package: $d
  34     echo "**/+\**"
  35     echo "*******"
  36     echo "*******"
  37     exit 1
  38   fi
  39 done
  40
  41 if test "x$verbose" = xyes; then
  42   for d in $opt_subdirs; do
  43     if test ! -d $srcdir/$d ; then
  44       echo "*****"
  45       echo "*===*"
  46       echo "*=*=*" WARNING: Missing suggested package: $d
  47       echo "*===*"
  48       echo "*****"
  49     fi
  50   done
  51 fi
  52
  53
  54 AC_PROG_CC
  55
  56 ### build_subdirs is the list of directories we actually want to
  57 ### build.  It's not equivalent to existingdirs: if we can't find the
  58 ### Tcl libraries, then we don't want to build in gtcltk-lib.
  59 ###
  60 ### So why can't we just forget about gtcltk-lib altogether, and
  61 ### delete it from existingdirs, in that case?  Well, in order for
  62 ### 'make dist' to work, we still need to configure gtcltk-lib, and
  63 ### the top-level Makefile needs to know it exists,
  64 build_subdirs="${existingdirs}"
  65
  66 ### Decide which directories to build; remove the ones we don't want
  67 ### from build_subdirs.
  68
  69 ### On some systems, the Tcl library contains references to
  70 ### functions in the dynamic linker library, -ldl, so we may need
  71 ### to include that.
  72 AC_CHECK_LIB(dl, dlopen)
  73
  74 ### Use gtcltk-lib only if we seem to have Tcl installed on the
  75 ### system.  We really should check for Tk as well, but that involves
  76 ### finding all the X libraries that we need to do a complete link.
  77 AC_CHECK_LIB(tcl7.5, Tcl_CreateInterp, have_tcl=true, have_tcl=false, -lm)
  78 if $have_tcl; then :; else
  79   build_subdirs="`echo $build_subdirs | sed s:gtcltk-lib::`"
  80   req_subdirs="`echo $req_subdirs | sed s:gtcltk-lib::`"
  81 fi
  82
  83 ### Write the list of survivors, the directories we do want to build,
  84 ### to a file in the top level, so the subdirectories' configuration
  85 ### scripts can find it.  We don't want to pass the list in the
  86 ### environment, because the subdirectory configuration scripts can be
  87 ### run on their own.
  88 echo "${build_subdirs}" > config.build-subdirs
  89
  90 AC_SUBST(existingdirs)
  91 AC_SUBST(build_subdirs)
  92 AC_SUBST(GUILE_VERSION)
  93 AC_OUTPUT(Makefile doc/Makefile)