[yocto] [PATCH][meta-selinux] libselinux: workaround gcc errors with '-O2'

[Mark Hatle]

From: Wenzong Fan <wenzong.fan at windriver.com>

While building libselinux with oe-core toolchain and DEBUG_OPTIMIZATION
enabled, the '-O' option may cause errors:

    {standard input}: Assembler messages:
    {standard input}:1910: Error: invalid operands \
    (.text and *UND* sections) for `-'

Similar issue [YOCTO #5512]

Signed-off-by: Wenzong Fan <wenzong.fan at windriver.com>
Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
Signed-off-by: Mark Hatle <mark.hatle at windriver.com>
---
 recipes-security/selinux/libselinux.inc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/recipes-security/selinux/libselinux.inc b/recipes-security/selinux/libselinux.inc
index d571a7c..d2d01df 100644
--- a/recipes-security/selinux/libselinux.inc
+++ b/recipes-security/selinux/libselinux.inc
@@ -23,6 +23,11 @@ EXTRA_OEMAKE += "${@get_policyconfigarch(d)}"
 
 EXTRA_OEMAKE += "LDFLAGS='${LDFLAGS} -lpcre'"
 
+# workaround gcc errors about:
+# {standard input}: Assembler messages:
+# {standard input}:1910: Error: invalid operands (.text and *UND* sections) for `-'
+CFLAGS += "-O2"
+
 do_compile_append() {
     oe_runmake pywrap -j1 \
             INCLUDEDIR='${STAGING_INCDIR}' \
-- 
1.9.3