config/xforms.m4

   1 dnl Usage LYX_PATH_XFORMS: Checks for xforms library and flags
   2 dnl   If it is found, the variable XFORMS_LIB is set to the relevant -l flags,
   3 dnl and FORMS_H_LOCATION / FORMS_IMAGE_H_LOCATION is also set
   4 AC_DEFUN(LYX_PATH_XFORMS,[
   5
   6 LIBS="$XPM_LIB $LIBS"
   7
   8 AC_CHECK_LIB(forms, fl_initialize, XFORMS_LIB="-lforms",
   9   [AC_CHECK_LIB(xforms, fl_initialize, XFORMS_LIB="-lxforms",
  10     [LYX_LIB_ERROR(libforms or libxforms,xforms)])])
  11 AC_SUBST(XFORMS_LIB)
  12
  13 ### Check for xforms headers
  14 lyx_cv_forms_h_location="<forms.h>"
  15 AC_CHECK_HEADER(X11/forms.h,[
  16   ac_cv_header_forms_h=yes
  17   lyx_cv_forms_h_location="<X11/forms.h>"],[
  18 AC_CHECK_HEADER(forms.h,[],[
  19 LYX_LIB_ERROR(forms.h,forms)])])
  20
  21 lyx_cv_flimage_h_location="<flimage.h>"
  22 AC_CHECK_HEADER(X11/flimage.h,[
  23   ac_cv_header_flimage_h=yes
  24   lyx_cv_flimage_h_location="<X11/flimage.h>"],)
  25 AC_DEFINE_UNQUOTED(FORMS_IMAGE_H_LOCATION,$lyx_cv_flimage_h_location)
  26
  27 AC_DEFINE_UNQUOTED(FORMS_H_LOCATION,$lyx_cv_forms_h_location)
  28
  29 if test $ac_cv_header_forms_h = yes; then
  30   AC_CACHE_CHECK([xforms header version],lyx_cv_xfversion,
  31   [ cat > conftest.$ac_ext <<EOF
  32 #line __oline__ "configure"
  33 #include "confdefs.h"
  34
  35 #include FORMS_H_LOCATION
  36 #if ! defined(FL_INCLUDE_VERSION)
  37 "%%%"(unknown)"%%%"
  38 #else
  39 "%%%"FL_VERSION.FL_REVISION.FL_FIXLEVEL"%%%"
  40 #endif
  41 EOF
  42 lyx_cv_xfversion=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
  43   grep '^"%%%"'  2>/dev/null | \
  44   sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'`
  45 rm -f conftest*])
  46
  47 XFORMS_VERSION=$lyx_cv_xfversion
  48 case "$lyx_cv_xfversion" in
  49   "(unknown)"|0.8[1-7]*)
  50          LYX_ERROR(dnl
  51 Version $lyx_cv_xfversion of xforms is not compatible with LyX.
  52    This version of LyX works best with versions 0.88 (recommended) and later.) ;;
  53     0.88*) ;;
  54     0.89[01234]) LYX_WARNING(dnl
  55 LyX should work ok with version $lyx_cv_xfversion of xforms[,] but
  56 it is an unproven version and might still have some bugs. You should
  57 probably use version 0.89.6 (or 0.88) instead) ;;
  58     0.89*) ;;
  59     1.0*) ;;
  60        *) LYX_WARNING(dnl
  61 Version $lyx_cv_xfversion of xforms might not be compatible with LyX[,]
  62  since it is newer than 0.89. You might have slight problems with it.);;
  63 esac
  64 fi])
  65
  66
  67 dnl Check whether the xforms library has a viable image loader
  68 AC_DEFUN(LYX_USE_XFORMS_IMAGE_LOADER,
  69 [
  70 save_LIBS=$LIBS
  71 LIBS="-lflimage $XFORMS_LIB -ljpeg $LIBS"
  72 lyx_use_xforms_image_loader=no
  73 AC_CHECK_FUNCS(flimage_dup,[
  74   AC_CHECK_FUNCS(flimage_to_pixmap,[
  75     lyx_use_xforms_image_loader=yes
  76     AC_CHECK_FUNCS(flimage_enable_ps)])])
  77 LIBS=$save_LIBS
  78 test $lyx_use_xforms_image_loader = yes && lyx_flags="$lyx_flags xforms-image-loader" && XFORMS_IMAGE_LIB=-lflimage
  79
  80 # try without flimage
  81 if test $lyx_use_xforms_image_loader = no ; then
  82         LIBS="$XFORMS_LIB -ljpeg $LIBS"
  83         lyx_use_xforms_image_loader=no
  84         AC_CHECK_FUNCS(flimage_dup,[
  85           AC_CHECK_FUNCS(flimage_to_pixmap,[
  86             lyx_use_xforms_image_loader=yes
  87             AC_CHECK_FUNCS(flimage_enable_ps)])])
  88         LIBS=$save_LIBS
  89
  90         # try without -ljpeg
  91         if test $lyx_use_xforms_image_loader = no ; then
  92                 LIBS="$XFORMS_LIB $LIBS"
  93                 lyx_use_xforms_image_loader=no
  94                 AC_CHECK_FUNCS(flimage_dup,[
  95                   AC_CHECK_FUNCS(flimage_to_pixmap,[
  96                     lyx_use_xforms_image_loader=yes
  97                     AC_CHECK_FUNCS(flimage_enable_ps)])])
  98                 LIBS=$save_LIBS
  99         fi
 100
 101 fi
 102
 103 AC_SUBST(XFORMS_IMAGE_LIB)
 104
 105 ### If the gui cannot load images itself, then we default to the
 106 ### very simple one in graphics/GraphicsImageXPM.[Ch]
 107 AM_CONDITIONAL(USE_BASIC_IMAGE_LOADER,
 108                test $lyx_use_xforms_image_loader = no)
 109 ])
 110
 111
 112 dnl Check if the image loader needs libjpeg
 113 AC_DEFUN(LYX_XFORMS_IMAGE_LOADER_NEEDS_JPEG,
 114 [
 115     if test "$lyx_use_xforms_image_loader" = "yes" ; then
 116         AC_MSG_CHECKING([whether libjpeg is needed])
 117         AC_LANG_SAVE
 118         AC_LANG_C
 119         AC_TRY_LINK([#include FORMS_H_LOCATION
 120 #include FORMS_IMAGE_H_LOCATION],
 121             [jpeg_abort(0);],
 122             [lyx_need_jpeg=no],[lyx_need_jpeg=yes])
 123         AC_LANG_RESTORE
 124         AC_MSG_RESULT($lyx_need_jpeg)
 125         if test "$lyx_need_jpeg" = "yes" ; then
 126             LIBS="-ljpeg $LIBS"
 127         fi
 128     fi
 129 ])