Change in coreboot[master]: [WIP]: Filter cpp comments

[Nico Huber (Code Review)]

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/29640

Change subject: [WIP]: Filter cpp comments
......................................................................

[WIP]: Filter cpp comments

Change-Id: I5fdaf8cacc26d990a7571bfe6c99a63a427d0944
Signed-off-by: Nico Huber 
---
M toolchain.inc
A util/scripts/cpp_filter_comments.sh
2 files changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/40/29640/1

diff --git a/toolchain.inc b/toolchain.inc
index ec57b5d..b934e65 100644
--- a/toolchain.inc
+++ b/toolchain.inc
@@ -23,6 +23,7 @@

export CCACHE_COMPILERCHECK=content
 export CCACHE_BASEDIR=$(top)
+export CCACHE_PREFIX_CPP=$(top)/util/scripts/cpp_filter_comments.sh

$(foreach arch,$(ARCH_SUPPORTED), \
    $(eval CC_$(arch):=$(CCACHE) $(CC_$(arch))))
diff --git a/util/scripts/cpp_filter_comments.sh b/util/scripts/cpp_filter_comments.sh
new file mode 100755
index 0000000..b11dcdb
--- /dev/null
+++ b/util/scripts/cpp_filter_comments.sh
@@ -0,0 +1,3 @@
+#!/bin/env sh
+
+exec "$@" | grep -v '^# '