[master] b570062 Reenable CLANG

[Poul-Henning Kamp]

commit b57006283551ab3f020055f811cbcf1328caad63
Author: Poul-Henning Kamp <phk at FreeBSD.org>
Date:   Mon Nov 19 13:12:26 2012 +0000

    Reenable CLANG

diff --git a/autogen.des b/autogen.des
index 3a706f3..aeb74d5 100755
--- a/autogen.des
+++ b/autogen.des
@@ -9,11 +9,12 @@ make -k distclean > /dev/null 2>&1 || true
 # Prefer CLANG if we have it, and have not given preferences
 if [ -f /usr/bin/clang -a "x${CC}" = "x" ] ; then
 	CC=clang
+	CFLAGS="${CFLAGS} -Qunused-arguments"
 
 	# XXX: clang complains about -g in linker invocations
 	# XXX: so fall back to gcc for now...
-	CC=gcc
-	export CC
+	# CC=gcc
+	export CC CFLAGS
 fi
 
 rm -f configure