Change in coreboot[master]: crossgcc: Fix building with clang++ in the presence of gcc

[Patrick Georgi (Code Review)]

Patrick Georgi has uploaded this change for review. ( https://review.coreboot.org/20365

Change subject: crossgcc: Fix building with clang++ in the presence of gcc
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crossgcc: Fix building with clang++ in the presence of gcc

Some environments (<grumble>cros_sdk</grumble>) provide gcc as $CC and
clang++ as $CXX. The latter needs the higher bracket-depth while the
former has no idea what it means, so tell CC and CXX individually.

Change-Id: I72b75fb9bb5df3a9b1561ee8821ec43ada29b24f
Signed-off-by: Patrick Georgi 
---
M util/crossgcc/buildgcc
1 file changed, 9 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/65/20365/1

diff --git a/util/crossgcc/buildgcc b/util/crossgcc/buildgcc
index 4d1f25a..01da659 100755
--- a/util/crossgcc/buildgcc
+++ b/util/crossgcc/buildgcc
@@ -621,7 +621,9 @@
 build_cross_GCC() {
    # Work around crazy code generator in GCC that confuses CLANG.
    $CC --version | grep clang >/dev/null 2>&1 && \
-		HOSTCFLAGS="$HOSTCFLAGS -fbracket-depth=1024"
+		CLANGFLAGS="-fbracket-depth=1024"
+	$CXX --version | grep clang >/dev/null 2>&1 && \
+		CLANGCXXFLAGS="-fbracket-depth=1024"

# GCC does not honor HOSTCFLAGS at all. CFLAGS are used for
    # both target and host object files.
@@ -630,9 +632,12 @@
    # libiberty is not compiled with CFLAGS_FOR_BUILD.
    # Also set the CXX version of the flags because GCC is now compiled
    # using C++.
-	CC="$CC" CFLAGS_FOR_TARGET="-O2 -Dinhibit_libc" CFLAGS="$HOSTCFLAGS" \
-		CFLAGS_FOR_BUILD="$HOSTCFLAGS" CXXFLAGS="$HOSTCFLAGS" \
-		CXXFLAGS_FOR_BUILD="$HOSTCFLAGS" ../gcc-${GCC_VERSION}/configure \
+	CC="$CC" CFLAGS_FOR_TARGET="-O2 -Dinhibit_libc"
+		CFLAGS="$HOSTCFLAGS $CLANGFLAGS" \
+		CFLAGS_FOR_BUILD="$HOSTCFLAGS $CLANGFLAGS" \
+		CXXFLAGS="$HOSTCFLAGS $CLANGCXXFLAGS" \
+		CXXFLAGS_FOR_BUILD="$HOSTCFLAGS $CLANGCXXFLAGS" \
+		../gcc-${GCC_VERSION}/configure \
    	--prefix=$TARGETDIR --libexecdir=$TARGETDIR/lib \
    	--target=${TARGETARCH} --disable-werror --disable-shared \
    	--enable-lto --enable-plugins --enable-gold --enable-ld=default \