config/xforms.m4

   1 dnl some macros to test for xforms-related functionality  -*- sh -*-
   2
   3 dnl Usage LYX_PATH_XPM: Checks for xpm library and header
   4 AC_DEFUN(LYX_PATH_XPM,[
   5 ### Check for Xpm library
   6 AC_CHECK_LIB(Xpm, XpmCreateBufferFromImage, XPM_LIB="-lXpm",
   7         [LYX_LIB_ERROR(libXpm,Xpm)])
   8 AC_SUBST(XPM_LIB)
   9 ### Check for Xpm headers
  10 lyx_cv_xpm_h_location="<xpm.h>"
  11 AC_CHECK_HEADER(X11/xpm.h,[
  12   ac_cv_header_xpm_h=yes
  13   lyx_cv_xpm_h_location="<X11/xpm.h>"],[
  14 AC_CHECK_HEADER(xpm.h,[],[
  15 LYX_LIB_ERROR(xpm.h,Xpm)])])
  16 #AC_DEFINE_UNQUOTED(XPM_H_LOCATION,$lyx_cv_xpm_h_location,
  17 #  [define this to the location of xpm.h to be used with #include, e.g. <xpm.h>])
  18 AC_SUBST(XPM_H_LOCATION,$lyx_cv_xpm_h_location)
  19 ### Test for the header version
  20 if test $ac_cv_header_xpm_h = yes; then
  21   AC_CACHE_CHECK([xpm header version],lyx_cv_xpmversion,
  22   [ cat > conftest.$ac_ext <<EOF
  23 #line __oline__ "configure"
  24 #include "confdefs.h"
  25
  26 #include $lyx_cv_xpm_h_location
  27 "%%%"lyx_cv_xpmv=XpmVersion;lyx_cv_xpmr=XpmRevision"%%%"
  28 EOF
  29     eval `(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
  30       grep '^"%%%"'  2>/dev/null | \
  31       sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'`
  32     case "$lyx_cv_xpmr" in
  33 changequote(,)
  34      [0-9]) lyxxpmr_alpha=`echo $lyx_cv_xpmr |tr 123456789 abcdefghi`
  35             lyxxpmv_alpha=" (aka 3.$lyx_cv_xpmv$lyxxpmr_alpha)";;
  36 changequote([,])
  37          *) ;;
  38     esac
  39     lyx_cv_xpmversion="$lyx_cv_xpmv.$lyx_cv_xpmr$lyxxpmv_alpha"
  40     rm -f conftest*])
  41   XPM_VERSION=${lyx_cv_xpmversion}
  42   case "$lyx_cv_xpmr" in
  43 changequote(,)
  44         [789]|[0-9][0-9]*) ;;
  45 changequote([,])
  46         *) LYX_WARNING([Version $lyx_cv_xpmversion of the Xpm library is a bit old.
  47    If you experience strange crashes with LyX, try to upgrade
  48    to at least version 4.7 (aka 3.4g).
  49    If you have installed a newer version of the library, check whether you
  50    have an old xpm.h header file in your include path.]);;
  51   esac
  52 fi])
  53
  54
  55 dnl Usage LYX_PATH_XFORMS: Checks for xforms library and flags
  56 dnl   If it is found, the variable XFORMS_LIB is set to the relevant -l flags,
  57 dnl and FORMS_H_LOCATION / FLIMAGE_H_LOCATION is also set
  58 AC_DEFUN(LYX_PATH_XFORMS,[
  59 AC_REQUIRE([LYX_PATH_XPM])
  60
  61 AC_CHECK_LIB(forms, fl_initialize, XFORMS_LIB="-lforms",
  62   [AC_CHECK_LIB(xforms, fl_initialize, XFORMS_LIB="-lxforms",
  63     [LYX_LIB_ERROR(libforms or libxforms,xforms)], $XPM_LIB)], $XPM_LIB)
  64 AC_SUBST(XFORMS_LIB)
  65
  66 ### Check for xforms headers
  67 lyx_cv_forms_h_location="<forms.h>"
  68 AC_CHECK_HEADER(X11/forms.h,[
  69   ac_cv_header_forms_h=yes
  70   lyx_cv_forms_h_location="<X11/forms.h>"],[
  71 AC_CHECK_HEADER(forms.h,[],[
  72 LYX_LIB_ERROR(forms.h,forms)])])
  73 AC_SUBST(FORMS_H_LOCATION,$lyx_cv_forms_h_location)
  74
  75 if test $ac_cv_header_forms_h = yes; then
  76   AC_CACHE_CHECK([xforms header version],lyx_cv_xfversion,
  77   [ cat > conftest.$ac_ext <<EOF
  78 #line __oline__ "configure"
  79 #include "confdefs.h"
  80
  81 #include $lyx_cv_forms_h_location
  82 #if ! defined(FL_INCLUDE_VERSION)
  83 "%%%"(unknown)"%%%"
  84 #else
  85 "%%%"FL_VERSION.FL_REVISION.FL_FIXLEVEL"%%%"
  86 #endif
  87 EOF
  88 lyx_cv_xfversion=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
  89   grep '^"%%%"'  2>/dev/null | \
  90   sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'`
  91 rm -f conftest*])
  92
  93 XFORMS_VERSION=$lyx_cv_xfversion
  94 case "$lyx_cv_xfversion" in
  95 "(unknown)"|0.8[[1-8]]*|0.89[[01234]])
  96         LYX_ERROR(dnl
  97 Version $lyx_cv_xfversion of xforms is not compatible with LyX.
  98    This version of LyX works best with version 1.0 (recommended) and later.) ;;
  99 0.89*|0.9999*)
 100         LYX_WARNING(dnl
 101 LyX should work ok with version $lyx_cv_xfversion of xforms[,] but
 102    it contains many bugs that have been squashed in version 1.0.
 103    You should consider upgrading.) ;;
 104 1.0*) ;;
 105 esac
 106 fi
 107 ])
 108
 109
 110 dnl Check the details of the xforms image loader
 111 AC_DEFUN(LYX_CHECK_XFORMS_IMAGE_LOADER,
 112 [AC_REQUIRE([LYX_PATH_XFORMS])
 113 save_LIBS=$LIBS
 114 LIBS="$XFORMS_LIB $XPM_LIB $LIBS"
 115 lyx_use_jpeg_image_loader=no
 116
 117 AC_LANG_SAVE
 118 AC_LANG_C
 119
 120 dnl The image headers were split out of forms.h in xforms version 1.0.
 121 AC_CHECK_HEADERS(flimage.h X11/flimage.h, break,,[#include $lyx_cv_forms_h_location])
 122
 123 dnl Only enable native loading of jpeg images if the jpeg library is installed.
 124 dnl This test comes before that of flimage itself to ensure that the necessary
 125 dnl libraries are linked into the "flimage_dup" test program below.
 126 XFORMS_IMAGE_LIB=""
 127 AC_CHECK_LIB(jpeg, jpeg_read_header,
 128   [lyx_use_jpeg_image_loader=yes
 129    XFORMS_IMAGE_LIB="-ljpeg"
 130    LIBS="-ljpeg $LIBS"])
 131
 132 AC_SEARCH_LIBS(flimage_dup, flimage,
 133   [if test "$ac_cv_search_flimage_dup" != "none required" ; then
 134      XFORMS_IMAGE_LIB="-lflimage $XFORMS_IMAGE_LIB"
 135   fi])
 136
 137 AC_SUBST(XFORMS_IMAGE_LIB)
 138
 139 if test $lyx_use_jpeg_image_loader = yes ; then
 140   lyx_flags="$lyx_flags xforms-image-loader"
 141   AC_DEFINE(USE_JPEG_IMAGE_LOADER, 1,
 142             [Define if you want to be able to load jpeg images natively])
 143 fi
 144
 145 AC_LANG_RESTORE
 146 LIBS=$save_LIBS])