clang is the new black.

llvm-svn: 137312
diff --git a/llvm-gcc-4.2/build_gcc b/llvm-gcc-4.2/build_gcc
index c758c55..680e3cd 100755
--- a/llvm-gcc-4.2/build_gcc
+++ b/llvm-gcc-4.2/build_gcc
@@ -265,12 +265,12 @@
 # LLVM LOCAL end
 
 # If the user has set CC or CXX, respect their wishes.  If not,
-# compile with LLVM-GCC/LLVM-G++ if available; if LLVM is not
+# compile with clang/clang++ if available; if LLVM is not
 # available, fall back to usual GCC/G++ default.
 savedPATH=$PATH ; PATH="/Developer/usr/bin:$PATH"
-XTMPCC=$(which llvm-gcc)
+XTMPCC=$(which clang)
 if [ x$CC  = x -a x$XTMPCC != x ] ; then export CC=$XTMPCC  forcedCC=1  ; fi
-XTMPCC=$(which llvm-g++)
+XTMPCC=$(which clang++)
 if [ x$CXX = x -a x$XTMPCC != x ] ; then export CXX=$XTMPCC forcedCXX=1 ; fi
 PATH=$savedPATH
 unset XTMPCC savedPATH