[tools] add ccache wrapper

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@32075 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 6 insertions, 2 deletions

diff --git a/rules.mk b/rules.mk
index f6e748c42..73a015e7a 100644
--- a/rules.mk
+++ b/rules.mk
@@ -188,8 +188,12 @@ INSTALL_DATA:=install -m0644
 INSTALL_CONF:=install -m0600
 
 ifneq ($(CONFIG_CCACHE),)
-  TARGET_CC:= ccache $(TARGET_CC)
-  TARGET_CXX:= ccache $(TARGET_CXX)
+  TARGET_CC_NOCACHE:=$(TARGET_CC)
+  TARGET_CXX_NOCACHE:=$(TARGET_CXX)
+  export TARGET_CC_NOCACHE
+  export TARGET_CXX_NOCACHE
+  TARGET_CC:= ccache_cc
+  TARGET_CXX:= ccache_cxx
   HOSTCC:= ccache $(HOSTCC)
 endif