This makes it easier to build iproute2 with a custom compiler.

While at it, make HOSTCC default to the value of CC if not explicitly
set elsewhere.

Signed-off-by: Phil Sutter <p...@nwl.cc>
---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 15c81ecfdca3a..fa200ddb76679 100644
--- a/Makefile
+++ b/Makefile
@@ -34,8 +34,8 @@ ADDLIB+=ipx_ntop.o ipx_pton.o
 #options for mpls
 ADDLIB+=mpls_ntop.o mpls_pton.o
 
-CC = gcc
-HOSTCC = gcc
+CC := gcc
+HOSTCC ?= $(CC)
 DEFINES += -D_GNU_SOURCE
 # Turn on transparent support for LFS
 DEFINES += -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
-- 
2.8.2

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