[OE-core] [PATCH] pr-util: insert appropriate parameter to adapt libtool

[yanjun.zhu]

When ccache is enabled, a parameter "ccache" is inserted.
libtool can not handle this parameter correctly. So "--tag=CC"
is introduced to help libtool handle it.
---
 meta/recipes-support/apr/apr-util_1.5.2.bb |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/meta/recipes-support/apr/apr-util_1.5.2.bb b/meta/recipes-support/apr/apr-util_1.5.2.bb
index ea0f7fb..d6ae394 100644
--- a/meta/recipes-support/apr/apr-util_1.5.2.bb
+++ b/meta/recipes-support/apr/apr-util_1.5.2.bb
@@ -34,6 +34,11 @@ do_configure_append() {
 	if [ "${CLASSOVERRIDE}" = "class-target" ]; then
 		cp ${STAGING_DATADIR}/apr/apr_rules.mk ${S}/build/rules.mk
 	fi
+
+	# When ccache is enabled, libtool needs --tag=CC to choose correct handle methods.
+	if [ -f ${S}/build/rules.mk ]; then
+		sed -i "s,^LTFLAGS,LTFLAGS      = --silent --tag=CC\n#LTFLAGS,g" ${S}/build/rules.mk
+	fi
 }
 do_configure_prepend_class-native() {
 	cp ${STAGING_DATADIR_NATIVE}/apr/apr_rules.mk ${S}/build/rules.mk
-- 
1.7.3.5