This patch allows us to set a value for the cross compiler via TARGETCC without
setting CC on the command line. CC is used for host tools as well as cross
compiled code so we cannot define it on the command line without breaking
the host tools build.

[Gustavo: update for nss 3.16.1]
Signed-off-by: Will Newton <will.newton@imgtec.com>

diff -Nura nss-3.16.1.orig/nss/coreconf/Linux.mk nss-3.16.1/nss/coreconf/Linux.mk
--- nss-3.16.1.orig/nss/coreconf/Linux.mk	2014-06-18 10:34:30.503996123 -0300
+++ nss-3.16.1/nss/coreconf/Linux.mk	2014-06-18 10:35:02.233068390 -0300
@@ -16,9 +16,13 @@
 	IMPL_STRATEGY = _PTH
 endif
 
-CC			= gcc
-CCC			= g++
-RANLIB			= ranlib
+TARGETCC		= gcc
+TARGETCCC		= g++
+TARGETRANLIB		= ranlib
+
+CC			= $(TARGETCC)
+CCC			= $(TARGETCCC)
+RANLIB			= $(TARGETRANLIB)
 
 DEFAULT_COMPILER = gcc