From b75db69ac1780a0fe2b3c732407370f203b90c73 Mon Sep 17 00:00:00 2001
From: Vladimir Serbinenko <phcoder@gmail.com>
Date: Sun, 8 Dec 2013 10:50:59 +0100
Subject: [PATCH] 	* configure.ac: Check for freetype library usability.

---
 ChangeLog    | 4 ++++
 configure.ac | 8 ++++++++
 2 files changed, 12 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 0a725555b..284be912a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2013-12-08  Vladimir Serbinenko  <phcoder@gmail.com>
+
+	* configure.ac: Check for freetype library usability.
+
 2013-12-08  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	Make arm-emu work.
diff --git a/configure.ac b/configure.ac
index 02bc6885f..1e329c67d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1201,10 +1201,14 @@ if test x"$grub_mkfont_excuse" = x ; then
   freetype_cflags=`$FREETYPE --cflags`
   freetype_libs=`$FREETYPE --libs`
   SAVED_CPPFLAGS="$CPPFLAGS"
+  SAVED_LIBS="$LIBS"
   CPPFLAGS="$CPPFLAGS $freetype_cflags"
+  LIBS="$LIBS $freetype_libs"
   AC_CHECK_HEADERS([ft2build.h], [],
   	[grub_mkfont_excuse=["need freetype2 headers"]])
+  AC_LINK_IFELSE([AC_LANG_CALL([], [FT_Load_Glyph])], [], [grub_mkfont_excuse=["freetype2 library unusable"]])
   CPPFLAGS="$SAVED_CPPFLAGS"
+  LIBS="$SAVED_LIBS"
 fi
 
 if test x"$enable_grub_mkfont" = xyes && test x"$grub_mkfont_excuse" != x ; then
@@ -1256,9 +1260,13 @@ if test x"$grub_build_mkfont_excuse" = x ; then
   build_freetype_cflags=`$BUILD_FREETYPE --cflags`
   build_freetype_libs=`$BUILD_FREETYPE --libs`
   SAVED_CPPFLAGS_2="$CPPFLAGS"
+  SAVED_LIBS="$LIBS"
   CPPFLAGS="$CPPFLAGS $build_freetype_cflags"
+  LIBS="$LIBS $build_freetype_libs"
   AC_CHECK_HEADERS([ft2build.h], [],
   	[grub_build_mkfont_excuse=["need freetype2 headers"]])
+  AC_LINK_IFELSE([AC_LANG_CALL([], [FT_Load_Glyph])], [], [grub_build_mkfont_excuse=["freetype2 library unusable"]])
+  LIBS="$SAVED_LIBS"
   CPPFLAGS="$SAVED_CPPFLAGS_2"
 fi