From 3c56b49df6a8bac1b9141585144006d52a2a8c21 Mon Sep 17 00:00:00 2001
From: Kaspar Schleiser <kaspar@schleiser.de>
Date: Tue, 19 May 2015 18:26:59 +0200
Subject: [PATCH] make: use ccache if environment variable is set

---
 Makefile.base | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile.base b/Makefile.base
index 9b1bc4c044..fcdd36fadb 100644
--- a/Makefile.base
+++ b/Makefile.base
@@ -57,13 +57,13 @@ CXXFLAGS = $(filter-out $(CXXUWFLAGS), $(CFLAGS)) $(CXXEXFLAGS)
 # compile and generate dependency info
 
 $(OBJC): $(BINDIR)$(MODULE)/%.o: %.c
-	$(AD)$(CC) \
+	$(AD)$(CCACHE) $(CC) \
 		-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$(abspath $<))\" \
 		-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
 		$(CFLAGS) $(INCLUDES) -MD -MP -c -o $@ $(abspath $<)
 
 $(OBJCXX): $(BINDIR)$(MODULE)/%.o: %.cpp
-	$(AD)$(CXX) \
+	$(AD)$(CCACHE) $(CXX) \
 		-DRIOT_FILE_RELATIVE=\"$(patsubst $(RIOTBASE)/%,%,$(abspath $<))\" \
 		-DRIOT_FILE_NOPATH=\"$(notdir $<)\" \
 		$(CXXFLAGS) $(INCLUDES) -MD -MP -c -o $@ $(abspath $<)