[oe] [meta-oe][PATCH] leveldb: fix compile error with default tune 'mips'

[kai.kang at windriver.com]

From: Kai Kang <kai.kang at windriver.com>

When build leveldb with default tune 'mips', it fails to compile with
errors:

| {standard input}: Assembler messages:
| {standard input}:8004: Error: opcode not supported on this processor:
  mips1 (mips1) `sync'
| {standard input}:10296: Error: opcode not supported on this processor:
  mips1 (mips1) `sync'
| make: *** [out-shared/db/db_bench.o] Error 1

Add 'mips32' to TUNE_FEATURES which eventually add '-march=mips32' to
CXX to fix the errors.

Signed-off-by: Kai Kang <kai.kang at windriver.com>
---
 meta-oe/recipes-dbs/leveldb/leveldb_git.bb | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/meta-oe/recipes-dbs/leveldb/leveldb_git.bb b/meta-oe/recipes-dbs/leveldb/leveldb_git.bb
index 8fec89c6f..f0e434077 100644
--- a/meta-oe/recipes-dbs/leveldb/leveldb_git.bb
+++ b/meta-oe/recipes-dbs/leveldb/leveldb_git.bb
@@ -17,6 +17,14 @@ S = "${WORKDIR}/git"
 
 inherit utils
 
+# leveldb fails to compile with default tune 'mips':
+# | {standard input}:59226: Error: opcode not supported on this processor: mips1 (mips1) `sync'
+# | make: *** [out-shared/db/db_impl.o] Error 1
+python () {
+    if 'o32' in d.getVar('TUNE_FEATURES') and d.getVar('DEFAULTTUNE') == 'mips':
+        d.appendVar('TUNE_FEATURES', ' mips32')
+}
+
 do_compile() {
     # do not use oe_runmake. oe_runmake pass to make compilation arguments and override
     # leveldb makefile variable CFLAGS and broke leveldb build.
-- 
2.20.0