lyx_mirror/config/xforms.m4
John Levon 9ed3420ea1 xforms 1.0 fixes
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4317 a592a061-630c-0410-9148-cb99ea01b6c8
2002-06-02 18:58:19 +00:00

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dnl Usage LYX_PATH_XFORMS: Checks for xforms library and flags
dnl If it is found, the variable XFORMS_LIB is set to the relevant -l flags,
dnl and FORMS_H_LOCATION / FORMS_IMAGE_H_LOCATION is also set
AC_DEFUN(LYX_PATH_XFORMS,[
LIBS="$XPM_LIB $LIBS"
AC_CHECK_LIB(forms, fl_initialize, XFORMS_LIB="-lforms",
[AC_CHECK_LIB(xforms, fl_initialize, XFORMS_LIB="-lxforms",
[LYX_LIB_ERROR(libforms or libxforms,xforms)])])
AC_SUBST(XFORMS_LIB)
### Check for xforms headers
lyx_cv_forms_h_location="<forms.h>"
AC_CHECK_HEADER(X11/forms.h,[
ac_cv_header_forms_h=yes
lyx_cv_forms_h_location="<X11/forms.h>"],[
AC_CHECK_HEADER(forms.h,[],[
LYX_LIB_ERROR(forms.h,forms)])])
lyx_cv_flimage_h_location="<flimage.h>"
AC_CHECK_HEADER(X11/flimage.h,[
ac_cv_header_flimage_h=yes
lyx_cv_flimage_h_location="<X11/flimage.h>"],[
AC_CHECK_HEADER(flimage.h,[],[
LYX_LIB_ERROR(flimage.h,forms)])])
AC_DEFINE_UNQUOTED(FORMS_IMAGE_H_LOCATION,$lyx_cv_flimage_h_location)
AC_DEFINE_UNQUOTED(FORMS_H_LOCATION,$lyx_cv_forms_h_location)
if test $ac_cv_header_forms_h = yes; then
AC_CACHE_CHECK([xforms header version],lyx_cv_xfversion,
[ cat > conftest.$ac_ext <<EOF
#line __oline__ "configure"
#include "confdefs.h"
#include FORMS_H_LOCATION
#if ! defined(FL_INCLUDE_VERSION)
"%%%"(unknown)"%%%"
#else
"%%%"FL_VERSION.FL_REVISION.FL_FIXLEVEL"%%%"
#endif
EOF
lyx_cv_xfversion=`(eval "$ac_cpp conftest.$ac_ext") 2>&5 | \
grep '^"%%%"' 2>/dev/null | \
sed -e 's/^"%%%"\(.*\)"%%%"/\1/' -e 's/ //g'`
rm -f conftest*])
XFORMS_VERSION=$lyx_cv_xfversion
case "$lyx_cv_xfversion" in
"(unknown)"|0.8[1-7]*)
LYX_ERROR(dnl
Version $lyx_cv_xfversion of xforms is not compatible with LyX.
This version of LyX works best with versions 0.88 (recommended) and later.) ;;
0.88*) ;;
0.89[01234]) LYX_WARNING(dnl
LyX should work ok with version $lyx_cv_xfversion of xforms[,] but
it is an unproven version and might still have some bugs. You should
probably use version 0.89.6 (or 0.88) instead) ;;
0.89*) ;;
1.0*) ;;
*) LYX_WARNING(dnl
Version $lyx_cv_xfversion of xforms might not be compatible with LyX[,]
since it is newer than 0.89. You might have slight problems with it.);;
esac
fi])
dnl Check whether the xforms library has a viable image loader
AC_DEFUN(LYX_USE_XFORMS_IMAGE_LOADER,
[
save_LIBS=$LIBS
LIBS="-lflimage $XFORMS_LIB -ljpeg $LIBS"
lyx_use_xforms_image_loader=no
AC_CHECK_FUNCS(flimage_dup,[
AC_CHECK_FUNCS(flimage_to_pixmap,[
lyx_use_xforms_image_loader=yes
AC_CHECK_FUNCS(flimage_enable_ps)])])
LIBS=$save_LIBS
test $lyx_use_xforms_image_loader = yes && lyx_flags="$lyx_flags xforms-image-loader" && XFORMS_IMAGE_LIB=-lflimage
AC_SUBST(XFORMS_IMAGE_LIB)
### If the gui cannot load images itself, then we default to the
### very simple one in graphics/GraphicsImageXPM.[Ch]
AM_CONDITIONAL(USE_BASIC_IMAGE_LOADER,
test $lyx_use_xforms_image_loader = no)
])
dnl Check if the image loader needs libjpeg
AC_DEFUN(LYX_XFORMS_IMAGE_LOADER_NEEDS_JPEG,
[
if test "$lyx_use_xforms_image_loader" = "yes" ; then
AC_MSG_CHECKING([whether libjpeg is needed])
AC_LANG_SAVE
AC_LANG_C
AC_TRY_LINK([#include FORMS_H_LOCATION
#include FORMS_IMAGE_H_LOCATION],
[jpeg_abort(0);],
[lyx_need_jpeg=no],[lyx_need_jpeg=yes])
AC_LANG_RESTORE
AC_MSG_RESULT($lyx_need_jpeg)
if test "$lyx_need_jpeg" = "yes" ; then
LIBS="-ljpeg $LIBS"
fi
fi
])