# libcroco.m4 serial 2 (gettext-0.17)
dnl Copyright (C) 2006, 2015-2016 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl From Bruno Haible.

AC_DEFUN([gl_LIBCROCO],
[
  dnl libcroco depends on libglib.
  AC_REQUIRE([gl_LIBGLIB])

  AC_MSG_CHECKING([whether included libcroco is requested])
  AC_ARG_WITH([included-libcroco],
    [  --with-included-libcroco  use the libcroco included here],
    [gl_cv_libcroco_force_included=$withval],
    [gl_cv_libcroco_force_included=no])
  AC_MSG_RESULT([$gl_cv_libcroco_force_included])

  gl_cv_libcroco_use_included="$gl_cv_libcroco_force_included"
  LIBCROCO=
  LTLIBCROCO=
  INCCROCO=
  if test "$gl_cv_libcroco_use_included" != yes; then
    dnl Figure out whether we can use a preinstalled libcroco-0.6, or have to
    dnl use the included one.
    AC_CACHE_VAL([gl_cv_libcroco], [
      gl_cv_libcroco=no
      gl_cv_LIBCROCO=
      gl_cv_LTLIBCROCO=
      gl_cv_INCCROCO=
      gl_save_LIBS="$LIBS"
      dnl Search for libcroco and define LIBCROCO_0_6, LTLIBCROCO_0_6 and
      dnl INCCROCO_0_6 accordingly.
      dnl Don't use croco-0.6-config nor pkg-config, since it doesn't work when
      dnl cross-compiling or when the C compiler in use is different from the
      dnl one that built the library.
      AC_LIB_LINKFLAGS_BODY([croco-0.6], [glib-2.0])
      LIBS="$gl_save_LIBS $LIBCROCO_0_6"
      AC_TRY_LINK([#include <libcroco-config.h>],
        [const char *version = LIBCROCO_VERSION; return !version;],
        [gl_cv_libcroco=yes
         gl_cv_LIBCROCO="$LIBCROCO_0_6"
         gl_cv_LTLIBCROCO="$LTLIBCROCO_0_6"
        ])
      if test "$gl_cv_libcroco" != yes; then
        gl_save_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $INCCROCO_0_6"
        AC_TRY_LINK([#include <libcroco-config.h>],
          [const char *version = LIBCROCO_VERSION; return !version;],
          [gl_cv_libcroco=yes
           gl_cv_LIBCROCO="$LIBCROCO_0_6"
           gl_cv_LTLIBCROCO="$LTLIBCROCO_0_6"
           gl_cv_INCCROCO="$INCCROCO_0_6"
          ])
        if test "$gl_cv_libcroco" != yes; then
          dnl Often the include files are installed in
          dnl /usr/include/libcroco-0.6/libcroco.
          AC_TRY_LINK([#include <libcroco-0.6/libcroco/libcroco-config.h>],
            [const char *version = LIBCROCO_VERSION; return !version;],
            [gl_ABSOLUTE_HEADER([libcroco-0.6/libcroco/libcroco-config.h])
             libcroco_include_dir=`echo "$gl_cv_absolute_libcroco_0_6_libcroco_libcroco_config_h" | sed -e 's,.libcroco-config\.h$,,'`
             if test -d "$libcroco_include_dir"; then
               gl_cv_libcroco=yes
               gl_cv_LIBCROCO="$LIBCROCO_0_6"
               gl_cv_LTLIBCROCO="$LTLIBCROCO_0_6"
               gl_cv_INCCROCO="-I$libcroco_include_dir"
             fi
            ])
        fi
        CPPFLAGS="$gl_save_CPPFLAGS"
      fi
      LIBS="$gl_save_LIBS"
    ])
    AC_MSG_CHECKING([for libcroco])
    AC_MSG_RESULT([$gl_cv_libcroco])
    if test $gl_cv_libcroco = yes; then
      LIBCROCO="$gl_cv_LIBCROCO"
      LTLIBCROCO="$gl_cv_LTLIBCROCO"
      INCCROCO="$gl_cv_INCCROCO"
    else
      gl_cv_libcroco_use_included=yes
    fi
  fi
  AC_SUBST([LIBCROCO])
  AC_SUBST([LTLIBCROCO])
  AC_SUBST([INCCROCO])
  AC_MSG_CHECKING([whether to use the included libcroco])
  AC_MSG_RESULT([$gl_cv_libcroco_use_included])

  AM_CONDITIONAL([INCLUDED_LIBCROCO],
    [test "$gl_cv_libcroco_use_included" = yes])
])