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# Check if the tiff lib is available
AC_FIND_TIFF
AM_CONDITIONAL(have_tiff, test -n "$LIBTIFF")
AC_FIND_PNG
AM_CONDITIONAL(have_png, test -n "$LIBPNG")
AC_FIND_JPEG
AM_CONDITIONAL(have_jpeg, test -n "$LIBJPEG")
#---------------------------------------------------------
# libexif detection
# taken from libkexif's configure.in.in
#---------------------------------------------------------
LIBEXIF=no
#PKG_CHECK_MODULES(LIBEXIF, libexif >= 0.5.7, ,
# [ AC_MSG_WARN([libexif >= 0.5.7 not found.])
# LIBEXIF=yes ])
#PKG_CHECK_MODULES(LIBEXIF06, libexif >= 0.6.9,
# AC_DEFINE(HAVE_EXIF06,1,[check for libexif > 0.6]),
# AC_MSG_WARN([Using old version of libexif.]))
PKG_CHECK_MODULES(LIBEXIF, libexif >= 0.6.12 , ,
[ AC_MSG_WARN([libexif >= 0.6.12 not found.])
LIBEXIF=yes ])
AC_SUBST(LIBEXIF_LIBS)
AC_SUBST(LIBEXIF_CFLAGS)
#---------------------------------------------------------
# libexif detection
#---------------------------------------------------------
AC_MSG_CHECKING([if C++ program with exif can be compiled])
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
CXXFLAGS="$CXXFLAGS $LIBEXIF_CFLAGS"
AC_CACHE_VAL(exif_build,
[
AC_TRY_COMPILE([
extern "C" {
#include <libexif/exif-loader.h>
#include <libexif/exif-utils.h>
}
],[
ExifLoader *l = exif_loader_new ();
exif_loader_write_file (l,"kikoo");
return 0;
], exif_build=yes,
exif_build=no)
])
AC_MSG_RESULT($exif_build)
if test "$exif_build" = "no"; then
LIBEXIF=""
fi
CXXFLAGS="$ac_save_CXXFLAGS"
AC_LANG_RESTORE
AM_CONDITIONAL(have_exif, test -n "$LIBEXIF")
AM_CONDITIONAL(include_jpeg_filter, test -n "$LIBJPEG" -a -n "$LIBEXIF")
AM_CONDITIONAL(include_tiff_filter, test -n "$LIBTIFF" -a -n "$LIBEXIF")
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