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-rw-r--r--init/Kconfig7
-rwxr-xr-xscripts/clang-version.sh18
2 files changed, 11 insertions, 14 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 66c8fd1f1d8e..efc43c60de45 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -16,6 +16,13 @@ config GCC_VERSION
default $(shell,$(srctree)/scripts/gcc-version.sh -p $(CC) | sed 's/^0*//') if CC_IS_GCC
default 0
+config CC_IS_CLANG
+ def_bool $(success,$(CC) --version | head -n 1 | grep -q clang)
+
+config CLANG_VERSION
+ int
+ default $(shell,$(srctree)/scripts/clang-version.sh $(CC))
+
config CONSTRUCTORS
bool
depends on !UML
diff --git a/scripts/clang-version.sh b/scripts/clang-version.sh
index 9780efa56980..dbf0a31eb111 100755
--- a/scripts/clang-version.sh
+++ b/scripts/clang-version.sh
@@ -10,24 +10,14 @@
# clang-5.0.1 etc.
#
-if [ "$1" = "-p" ] ; then
- with_patchlevel=1;
- shift;
-fi
-
compiler="$*"
-if [ ${#compiler} -eq 0 ]; then
- echo "Error: No compiler specified."
- printf "Usage:\n\t$0 <clang-command>\n"
+if !( $compiler --version | grep -q clang) ; then
+ echo 0
exit 1
fi
MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1)
MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1)
-if [ "x$with_patchlevel" != "x" ] ; then
- PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
- printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
-else
- printf "%02d%02d\\n" $MAJOR $MINOR
-fi
+PATCHLEVEL=$(echo __clang_patchlevel__ | $compiler -E -x c - | tail -n 1)
+printf "%d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL