clutter-1.0: Fix confgure test errors found by clang

We were using nested functions inadvertantly and they were compiling fine
with gcc but clang doesnt support nested functions hence configure tests for
cogl started to fail, but it was a test error not compiler error
which was undetected thus far

Backport a fix from upstream to help clang compile clutter

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

2 files changed, 106 insertions, 0 deletions

diff --git a/meta/recipes-graphics/clutter/clutter-1.0/0001-build-Use-AC_COMPILE_IFELSE.patch b/meta/recipes-graphics/clutter/clutter-1.0/0001-build-Use-AC_COMPILE_IFELSE.patch
new file mode 100644
index 00000000000..c4edff39529
--- /dev/null
+++ b/meta/recipes-graphics/clutter/clutter-1.0/0001-build-Use-AC_COMPILE_IFELSE.patch
@@ -0,0 +1,105 @@
+From 483a4bb00e7dd2f14d86e167c8013c8638723c33 Mon Sep 17 00:00:00 2001
+From: Emmanuele Bassi <ebassi@gnome.org>
+Date: Thu, 18 Feb 2016 17:19:09 +0000
+Subject: [PATCH] build: Use AC_COMPILE_IFELSE
+
+Instead of AC_TRY_COMPILE, which has been deprecated by newer autoconf.
+---
+Upstream-Status: Backport
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+ configure.ac | 66 ++++++++++++++++++++++++++++++------------------------------
+ 1 file changed, 33 insertions(+), 33 deletions(-)
+
+diff --git a/configure.ac b/configure.ac
+index 4d72e0c..8ca3f94 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -348,24 +348,25 @@ AS_IF([test "x$enable_wayland" != xno],
+         # We need to manually check for Wayland support in Cogl because
+         # the windowing systems are not exposed in the pkg-config file
+         saved_CFLAGS="${CFLAGS}"
+-        CFLAGS="`$PKG_CONFIG --cflags $CLUTTER_BASE_PC_FILES`"
++        CFLAGS="`$PKG_CONFIG --cflags cogl-1.0`"
+ 
+         AC_MSG_CHECKING([for Wayland Cogl backend])
+-        AC_TRY_COMPILE([#include <cogl/cogl.h>],
+-                       [
+-                         #ifndef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
+-                         #error "No Wayland support in Cogl"
+-                         #endif
+-                         int main (void) { return 0; }
+-                       ],
+-                       [
+-                         AC_MSG_RESULT(yes)
+-                         have_cogl_wayland=yes
+-                       ],
+-                       [
+-                         AC_MSG_RESULT(no)
+-                         have_cogl_wayland=no
+-                       ])
++
++        AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
++#include <cogl/cogl.h>
++]],
++[[
++#ifndef COGL_HAS_EGL_PLATFORM_WAYLAND_SUPPORT
++#error Cogl compiled without Wayland support
++#endif
++]])], [
++          AC_MSG_RESULT(yes)
++          have_cogl_wayland=yes
++        ], [
++          AC_MSG_RESULT(no)
++          have_cogl_wayland=no
++        ])
++
+         CFLAGS="${saved_CFLAGS}"
+         AS_IF([test "x$have_cogl_wayland" = xyes],
+               [
+@@ -499,26 +500,25 @@ AS_IF([test "x$enable_mir" = "xyes"],
+         # We need to manually check for Mir support in Cogl because
+         # the windowing systems are not exposed in the pkg-config file
+         saved_CFLAGS="${CFLAGS}"
+-        CFLAGS="`$PKG_CONFIG --cflags $CLUTTER_BASE_PC_FILES`"
++        CFLAGS="`$PKG_CONFIG --cflags cogl-1.0`"
+ 
+         AC_MSG_CHECKING([for Mir Cogl backend])
+-        AC_TRY_COMPILE([#include <cogl/cogl.h>],
+-                       [
+-                        #ifndef COGL_HAS_EGL_PLATFORM_MIR_SUPPORT
+-                        #error "No Mir support in Cogl"
+-                        #endif
+-                        int main (void) { return 0; }
+-                       ],
+-                       [
+-                         AC_MSG_RESULT(yes)
+-                         have_cogl_mir=yes
+-                       ],
+-                       [
+-                         AC_MSG_RESULT(no)
+-                         have_cogl_mir=no
+-                       ])
+ 
+-        CFLAGS="${saved_CFLAGS}"
++        AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
++#include <cogl/cogl.h>
++]],
++[[
++#ifndef COGL_HAS_EGL_PLATFORM_MIR_SUPPORT
++#error Cogl compiled without Mir support
++#endif
++]])], [
++          AC_MSG_RESULT(yes)
++          have_cogl_mir=yes
++        ], [
++          AC_MSG_RESULT(no)
++          have_cogl_mir=no
++        ])
++
+         AS_IF([test "x$have_cogl_mir" = xno], [AC_MSG_ERROR("*** Cogl is missing Mir support.")])
+ 
+         PKG_CHECK_EXISTS([mirclient],
+-- 
+1.9.1
+
diff --git a/meta/recipes-graphics/clutter/clutter-1.0_1.24.2.bb b/meta/recipes-graphics/clutter/clutter-1.0_1.24.2.bb
index 093bf6e0d99..c53b3e71ba9 100644
--- a/meta/recipes-graphics/clutter/clutter-1.0_1.24.2.bb
+++ b/meta/recipes-graphics/clutter/clutter-1.0_1.24.2.bb
@@ -6,4 +6,5 @@ SRC_URI[archive.md5sum] = "3b98e1b33719982a5736ae42cbf7183e"
 SRC_URI[archive.sha256sum] = "9631c98cb4bcbfec15e1bbe9eaa6eef0f127201552fce40d7d28f2133803cd63"
 SRC_URI += "file://install-examples.patch \
             file://run-installed-tests-with-tap-output.patch \
+            file://0001-build-Use-AC_COMPILE_IFELSE.patch \
             file://run-ptest"