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wrlib: add detection for ImageMagick using pkg-config

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We rely on pkg-config first, because that is the traditional way to
query configs and because that's how the MagickWand API suggests to do.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
This commit is contained in:
Christophe CURIS
2014-05-08 20:16:05 +02:00
committed by Carlos R. Mafra
parent f1a36b4c07
commit 2eaac2a5d7
1 changed files with 35 additions and 29 deletions
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36
m4/wm_imgfmt_check.m4
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@@ -262,32 +262,39 @@ AC_DEFUN_ONCE([WM_IMGFMT_CHECK_MAGICK],
[AC_REQUIRE([_WM_LIB_CHECK_FUNCTS])
AS_IF([test "x$enable_magick" = "xno"],
[unsupported="$unsupported Magick"],
[AC_CHECK_PROG([MAGICKWCONFIG], [MagickWand-config], [MagickWand-config])
AS_IF([test "x$MAGICKWCONFIG" = "x"],
[AS_IF([test "x$enable_magick" = "xyes"],
[AC_MSG_ERROR([explicit Magick support requested but MagickWand-config not found])])
enable_magick=no
unsupported="$unsupported Magick"],
[AC_CACHE_CHECK([for Magick support library], [wm_cv_libchk_magick],
[wm_cv_libchk_magick=no
wm_cv_libchk_magick_cflags=`$MAGICKWCONFIG --cflags`
wm_cv_libchk_magick_libs=`$MAGICKWCONFIG --ldflags`
dnl First try to get the configuration from either pkg-config (the official way)
dnl or with the fallback MagickWand-config
AS_IF([test "x$PKGCONFIG" = "x"],
[AC_PATH_PROGS_FEATURE_CHECK([magickwand], [MagickWand-config],
[wm_cv_libchk_magick_cflags=`$ac_path_magickwand --cflags`
wm_cv_libchk_magick_libs=`$ac_path_magickwand --ldflags`
wm_cv_libchk_magick=magickwand])],
[AS_IF([$PKGCONFIG --exists MagickWand],
[wm_cv_libchk_magick_cflags=`$PKGCONFIG --cflags MagickWand`
wm_cv_libchk_magick_libs=`$PKGCONFIG --libs MagickWand`
wm_cv_libchk_magick=pkgconfig])])
AS_IF([test "x$wm_cv_libchk_magick" = "xno"],
[AS_IF([test "x$enable_magick" != "xauto"],
[AC_MSG_RESULT([not found])
AC_MSG_ERROR([explicit Magick support requested but configuration not found with pkg-config and MagickWand-config - are you missing libmagickwand-dev package?])])],
[dnl The configuration was found, check that it actually works
wm_save_LIBS="$LIBS"
dnl
dnl We check that the library is available
AS_IF([wm_fn_lib_try_link "NewMagickWand" "$wm_cv_libchk_magick_libs"],
[wm_cv_libchk_magick=maybe])
LIBS="$wm_save_LIBS"
AS_IF([test "x$enable_magick$wm_cv_libchk_magick" = "xyesno"],
[AC_MSG_ERROR([explicit Magick support requested but library does not link])])
AS_IF([test "x$wm_cv_libchk_magick" != "xmaybe"],
[AC_MSG_ERROR([MagickWand was found but the library does not link])])
dnl
dnl The library was found, check if header is available and compiles
AS_IF([test "x$wm_cv_libchk_magick" != "xno"],
[wm_save_CFLAGS="$CFLAGS"
wm_save_CFLAGS="$CFLAGS"
AS_IF([wm_fn_lib_try_compile "wand/magick_wand.h" "MagickWand *wand;" "wand = NewMagickWand()" "$wm_cv_libchk_magick_cflags"],
[wm_cv_libchk_magick="$wm_cv_libchk_magick_cflags % $wm_cv_libchk_magick_libs"],
[AC_MSG_ERROR([found Magick library but could not compile appropriate header - are you missing libmagickwand-dev package?])])
CFLAGS="$wm_save_CFLAGS"])
[AC_MSG_ERROR([found MagickWand library but could not compile its header])])
CFLAGS="$wm_save_CFLAGS"])dnl
])
AS_IF([test "x$wm_cv_libchk_magick" = "xno"],
[unsupported="$unsupported Magick"
@@ -297,7 +304,6 @@ AS_IF([test "x$enable_magick" = "xno"],
MAGICKLIBS=`echo "$wm_cv_libchk_magick" | sed -e 's,^.*% *,,' `
AC_DEFINE([USE_MAGICK], [1],
[defined when MagickWand library with header was found])])
])dnl AS_IF(MAGICKWCONFIG != "")
])
AM_CONDITIONAL([USE_MAGICK], [test "x$enable_magick" != "xno"])dnl
AC_SUBST(MAGICKFLAGS)dnl