[dpdk-stable] [PATCH] mk: fix shell errors when building with clang
Olivier Matz
olivier.matz at 6wind.com
Thu Apr 6 16:12:41 CEST 2017
On my system, the version of the compiler is not properly retrieved,
resulting in strange logs when building the dpdk:
/bin/sh: line 0: test: too many arguments
This happens when mk/toolchain/clang/rte.toolchain-compat.mk is included
from a directory that use gcc to build (ex: kernel modules). In that
case, the CLANG_VERSION variable contains spaces that breaks some shell
calls to the test program.
The error is because the output of "gcc -v" on my system contains 2 lines
that matches the "version" string:
Configured with: ../src/configure -v \
--with-pkgversion='Debian 6.3.0-6' [...]
gcc version 6.3.0 20170205 (Debian 6.3.0-6)
This may be specific to Debian. Fix it by specializing the grep.
Fixes: 2ef6eea891e5 ("mk: add clang toolchain")
Cc: stable at dpdk.org
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
mk/toolchain/clang/rte.toolchain-compat.mk | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/mk/toolchain/clang/rte.toolchain-compat.mk b/mk/toolchain/clang/rte.toolchain-compat.mk
index b734413b6..9e095d38b 100644
--- a/mk/toolchain/clang/rte.toolchain-compat.mk
+++ b/mk/toolchain/clang/rte.toolchain-compat.mk
@@ -38,7 +38,8 @@
# find out CLANG version
-CLANG_VERSION := $(shell $(CC) -v 2>&1 | grep version | sed "s/.*version \([0-9]*\.[0-9]*\).*/\1/")
+CLANG_VERSION := $(shell $(CC) -v 2>&1 | \
+ sed -n "s/.*version \([0-9]*\.[0-9]*\).*/\1/p")
CLANG_MAJOR_VERSION := $(shell echo $(CLANG_VERSION) | cut -f1 -d.)
--
2.11.0
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