[oe] [PATCH 27/36] leveldb: fix checking for SSE flag

[Armin Kuster]

From: Yi Zhao <yi.zhao at windriver.com>

The build_detect_platform-Check-for-__SSE4_2__.patch tries to use fgrep
with pipe to get the SSE flag. But actually it would fail with error:
fgrep: /tmp/leveldb_build_detect_platform-cxx.25886: No such file or
directory

That means it can not get the correct SSE flag.
We should make sure the fgrep command runs after g++ command has
finished and redirect the stdout and stderr to /dev/null to avoid make
error:
Makefile:18: *** missing separator. Stop.

Signed-off-by: Yi Zhao <yi.zhao at windriver.com>
Signed-off-by: Armin Kuster <akuster808 at gmail.com>
(cherry picked from commit fa211625598c9cc2ef965bf95548d21930622aaa)
Signed-off-by: Armin Kuster <akuster808 at gmail.com>
---
 .../leveldb/0001-build_detect_platform-Check-for-__SSE4_2__.patch    | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/meta-oe/recipes-extended/leveldb/leveldb/0001-build_detect_platform-Check-for-__SSE4_2__.patch b/meta-oe/recipes-extended/leveldb/leveldb/0001-build_detect_platform-Check-for-__SSE4_2__.patch
index bbabf68..8f93cb3 100644
--- a/meta-oe/recipes-extended/leveldb/leveldb/0001-build_detect_platform-Check-for-__SSE4_2__.patch
+++ b/meta-oe/recipes-extended/leveldb/leveldb/0001-build_detect_platform-Check-for-__SSE4_2__.patch
@@ -19,14 +19,15 @@ Index: git/build_detect_platform
 ===================================================================
 --- git.orig/build_detect_platform
 +++ git/build_detect_platform
-@@ -230,13 +230,12 @@ EOF
+@@ -224,13 +224,13 @@ EOF
      rm -f $CXXOUTPUT 2>/dev/null
  
      # Test if gcc SSE 4.2 is supported
 -    $CXX $CXXFLAGS -x c++ - -o $CXXOUTPUT -msse4.2 2>/dev/null  <<EOF
-+    $CXX $CXXFLAGS -Werror -x c++ - -o $CXXOUTPUT -msse4.2 -dD -E 2>/dev/null | fgrep __SSE4_2__ $CXXOUTPUT 2>/dev/null  <<EOF
++    $CXX $CXXFLAGS -Werror -x c++ - -o $CXXOUTPUT -msse4.2 -dD -E 2>/dev/null  <<EOF
        int main() {}
  EOF
++    eval fgrep __SSE4_2__ $CXXOUTPUT >/dev/null 2>&1
      if [ "$?" = 0 ]; then
          PLATFORM_SSEFLAGS="-msse4.2"
      fi
-- 
2.7.4