Makefile: honour CC variable given by user

If user wants to override the default compiler (for example with
clang), the CC variable inherited from the environment should be left
as is.

Signed-off-by: Timo Kokkonen <kaapeli@itanic.dy.fi>

diff --git a/Makefile b/Makefile
index 1eab2be6ab3fdb905e50220e2175b29e190fee5e..31704d8a1c8a373024bab55267aeef9ffce581ee 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ CFLAGS=$(SDL_CONFIG) -Wall -O2 -g
 
 LIBS=$(SDL_LIBS) -lm -lrt
 
-CC=gcc
+CC ?= gcc
 SPARSE=sparse
 CHECKPATCH=/usr/src/linux/scripts/checkpatch.pl