libvips/m4/pdfium.m4

128 lines
3.6 KiB
Plaintext
Raw Normal View History

dnl From FIND_MOTIF and ACX_PTHREAD, without much understanding
dnl
dnl FIND_PDFIUM[ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]]
dnl ---------------------------------------------------
dnl
dnl Find pdfium libraries and headers
dnl
dnl Put -I stuff in PDFIUM_INCLUDES
dnl Put PDFium objects in PDFIUM_LIBS (add this to link line untouched!)
dnl Define HAVE_PDFIUM if found
dnl
AC_DEFUN([FIND_PDFIUM], [
AC_REQUIRE([AC_PATH_XTRA])
ZLIB_INCLUDES=""
ZLIB_LIBS=""
AC_ARG_WITH(pdfium,
AS_HELP_STRING([--without-pdfium], [build without pdfium (default: test)]))
# Treat --without-pdfium like --without-pdfium-includes
# --without-pdfium-libraries
if test "$with_pdfium" = "no"; then
PDFIUM_INCLUDES=no
PDFIUM_LIBS=no
fi
# pdfium has a huge set of libraries, including its own jpeg ... we can't use
# -L/-l as usual, since the libjpeg.a here will break our -ljpeg later.
# Instead, just add these .a files plus their path to the list of objects to
# link.
pdfium_objects="libbigint.a libchrome_zlib.a libfdrm.a libformfiller.a \
libfpdfapi.a libfpdfdoc.a libfpdftext.a libfx_agg.a libfxcodec.a \
libfxcrt.a libfx_freetype.a libfxge.a libfxjs.a libfx_lcms2.a \
libfx_libopenjpeg.a libfx_lpng.a libgmock_main.a libimage_diff.a \
libjpeg.a libminizip.a libpdfium.a libpwl.a libsimd.a \
libsimd_asm.a libyasm_utils.a libzlib_x86_simd.a"
AC_ARG_WITH(pdfium-includes,
AS_HELP_STRING([--with-pdfium-includes=DIR], [pdfium includes are in DIR]),
PDFIUM_INCLUDES="-I$withval")
AC_ARG_WITH(pdfium-libraries,
AS_HELP_STRING([--with-pdfium-libraries=DIR], [pdfium libraries are in DIR]),
PDFIUM_LIBS="$withval")
AC_MSG_CHECKING(for PDFIUM)
# Look for fpdfview.h ... this is a documented header, so it should be a good
# target ... it won't be in the standard search path, but try $PREFIX
if test "$PDFIUM_INCLUDES" = ""; then
pdfium_save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="-I${prefix}/include $CPPFLAGS"
AC_TRY_COMPILE([#include <fpdfview.h>],[int a;],[
PDFIUM_INCLUDES="-I${prefix}/include"
], [
PDFIUM_INCLUDES="no"
])
CPPFLAGS="$pdfium_save_CPPFLAGS"
fi
# Now for the libraries ... if there's nothing set, try $PREFIX/lib
if test "$PDFIUM_LIBS" = ""; then
pdfium_save_LIBS="$LIBS"
pdfium_save_CPPFLAGS="$CPPFLAGS"
for i in $pdfium_objects; do
LIBS="$prefix/lib/$i $LIBS"
done
CPPFLAGS="$PDFIUM_INCLUDES $CPPFLAGS"
AC_TRY_LINK([#include <fpdfview.h>],
[FPDF_DOCUMENT doc; doc = FPDF_LoadDocument("", "")], [
echo link success
PDFIUM_LIBS="${prefix}/lib"
], [
echo link fail
PDFIUM_LIBS=no
])
LIBS="$pdfium_save_LIBS"
CPPFLAGS="$pdfium_save_CPPFLAGS"
fi
# Print a helpful message
pdfium_libraries_result="$PDFIUM_LIBS"
pdfium_includes_result="$PDFIUM_INCLUDES"
if test x"$pdfium_libraries_result" = x""; then
pdfium_libraries_result="in default path"
fi
if test x"$pdfium_includes_result" = x""; then
pdfium_includes_result="in default path"
fi
if test "$pdfium_libraries_result" = "no"; then
pdfium_libraries_result="(none)"
fi
if test "$pdfium_includes_result" = "no"; then
pdfium_includes_result="(none)"
fi
AC_MSG_RESULT([libraries $pdfium_libraries_result, headers $pdfium_includes_result])
if test x"$PDFIUM_LIBS" != x"no"; then
dir="$PDFIUM_LIBS"
PDFIUM_LIBS=""
for i in $pdfium_objects; do
PDFIUM_LIBS="$PDFIUM_LIBS $dir/$i"
done
fi
AC_SUBST(PDFIUM_LIBS)
AC_SUBST(PDFIUM_INCLUDES)
# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
if test "$PDFIUM_INCLUDES" != "no" && test "$PDFIUM_LIBS" != "no"; then
AC_DEFINE(HAVE_PDFIUM,1,[Define if you have pdfium libraries and header files.])
$1
else
PDFIUM_INCLUDES=""
PDFIUM_LIBS=""
$2
fi
])dnl