X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=build-root%2FMakefile;h=f8b2105c243c4ddbfd22903b22918ea3bc89ad81;hb=c42508d1581fc1ad4afe2e234fb1f1f005613eb5;hp=aa50255b00703cb4b12be7418f9cc9bddbe283a0;hpb=f46b7e6d7805ab0af8834a68780bd9972ef385fd;p=vpp.git

diff --git a/build-root/Makefile b/build-root/Makefile
index aa50255b007..f8b2105c243 100644
--- a/build-root/Makefile
+++ b/build-root/Makefile
@@ -318,10 +318,15 @@ BUILD_DEBUG =
 # Message from build system itself (as opposed to make or shell commands)
 build_msg_fn = echo "@@@@ $(1) @@@@"
 
+# Allow CCACHE_DIR to be overridden, e.g. in .../build-root/build-config.mk
+ifeq ($(CCACHE_DIR),)
+  CCACHE_DIR=$(MU_BUILD_ROOT_DIR)/.ccache
+endif
+
 # Always prefer our own tools to those installed on system.
 # Note: ccache-bin must be before tool bin.
 BUILD_ENV =										\
-    export CCACHE_DIR=$(MU_BUILD_ROOT_DIR)/.ccache ;					\
+    export CCACHE_DIR=$(CCACHE_DIR) ;					\
     export PATH=$(TOOL_INSTALL_DIR)/ccache-bin:$(TOOL_INSTALL_DIR)/bin:$${PATH} ;	\
     export PATH="`echo $${PATH} | sed -e s/[.]://`" ;					\
     $(if $(not_native),export CONFIG_SITE=$(MU_BUILD_ROOT_DIR)/config.site ;,)	\