mk: fix clang version query

-dumpversion is for gcc compatibility and doesn't return actual clang
version. -dumpversion only returns 4.2.1 for a long time.

Fixes: 2ef6eea891e5 ("mk: add clang toolchain")

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Bruce Richardson <bruce.richardson@intel.com>

diff --git a/mk/toolchain/clang/rte.toolchain-compat.mk b/mk/toolchain/clang/rte.toolchain-compat.mk
index f995b0b..03e5a97 100644 (file)
--- a/mk/toolchain/clang/rte.toolchain-compat.mk
+++ b/mk/toolchain/clang/rte.toolchain-compat.mk
@@ -38,6 +38,8 @@
 
 # find out CLANG version
 
-CLANG_MAJOR_VERSION = $(shell $(CC) -dumpversion | cut -f1 -d.)
+CLANG_VERSION := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/")
 
-CLANG_MINOR_VERSION = $(shell $(CC) -dumpversion | cut -f2 -d.)
+CLANG_MAJOR_VERSION := $(shell echo $(CLANG_VERSION) | cut -f1 -d.)
+
+CLANG_MINOR_VERSION := $(shell echo $(CLANG_VERSION) | cut -f2 -d.)