package/syslogd: workaround a compiler bug with CS powerpc 2012.03

The O3 optimization triggers a compiler bug with this toolchain,
change it with 02.

Fixes:
http://autobuild.buildroot.net/results/2fb/2fb94ecfdc32761a09da35e6fcbdd512847ec911

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/sysklogd/sysklogd.mk

@@ -14,6 +14,14 @@ ifeq ($(BR2_PACKAGE_BUSYBOX),y)
 SYSKLOGD_DEPENDENCIES = busybox
 endif
 
+# CS PowerPC 2012.03 triggers compiler bug.
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_POWERPC_E500V2),y)
+define SYSKLOGD_WORKAROUND_COMPILER_BUG
+	$(SED) 's/-O3/-O2/' $(@D)/Makefile
+endef
+SYSKLOGD_POST_PATCH_HOOKS = SYSKLOGD_WORKAROUND_COMPILER_BUG
+endif
+
 define SYSKLOGD_BUILD_CMDS
 	$(MAKE) $(TARGET_CONFIGURE_OPTS) -C $(@D)
 endef