libvips/m4/pdfium.m4

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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
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dnl Put PDFium objects in PDFIUM_LIBS (add this to the link line untouched!)
dnl Define HAVE_PDFIUM if found
dnl
AC_DEFUN([FIND_PDFIUM], [
AC_REQUIRE([AC_PATH_XTRA])
ZLIB_INCLUDES=""
ZLIB_LIBS=""
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# PDFium has a set of object archives that must be linked firectly into your
# app, and a couple of true libraries. The objects must be linked in this
# order.
pdfium_objects="\
libpdfium.a \
libfpdfapi.a \
libfxge.a \
libfpdfdoc.a \
libfxcrt.a \
libfx_agg.a \
libfxcodec.a \
libfx_lpng.a \
libfx_libopenjpeg.a \
libfx_lcms2.a \
libfx_freetype.a \
libjpeg.a \
libfdrm.a \
libpwl.a \
libbigint.a \
libformfiller.a \
libjavascript.a \
libfxedit.a"
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 "$with_pdfium" = "no"; then
PDFIUM_INCLUDES=no
PDFIUM_LIBS=no
fi
AC_ARG_WITH(pdfium-includes,
AS_HELP_STRING([--with-pdfium-includes=DIR], [pdfium includes are in DIR]),
PDFIUM_INCLUDES="-I$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
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# 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"
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LIBS=""
for i in $pdfium_objects; do
LIBS="$LIBS $prefix/lib/pdfium-obj/$i"
done
LIBS="$LIBS -L$prefix/lib -lc++ -licuuc -lm -lpthread"
CPPFLAGS="$PDFIUM_INCLUDES $CPPFLAGS"
AC_TRY_LINK([#include <fpdfview.h>],
[FPDF_DOCUMENT doc; doc = FPDF_LoadDocument("", "")], [
PDFIUM_LIBS="${prefix}/lib"
], [
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"
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PDFIUM_LIBS=""
for i in $pdfium_objects; do
PDFIUM_LIBS="$PDFIUM_LIBS $prefix/lib/pdfium-obj/$i"
done
PDFIUM_LIBS="$PDFIUM_LIBS -L$dir -lc++ -licuuc -lm -lpthread"
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