[oe] [PATCH] php: fix a building failure on aarch64

[rongqing.li at windriver.com]

From: Roy Li <rongqing.li at windriver.com>

When -O0 of gcc is used to compile the macro ZEND_SIGNED_MULTIPLY_LONG
in Zend/zend_multiply.h, the compiling will fail with the below error:
  : Assembler messages:
  :3113: Error: operand 2 should be an integer register -- `mul x1,[x29,200],[x29,192]'
  :3114: Error: operand 2 should be an integer register -- `smulh x0,[x29,200],[x29,192]'

Signed-off-by: Roy Li <rongqing.li at windriver.com>
---
 meta-oe/recipes-devtools/php/php_5.5.26.bb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/meta-oe/recipes-devtools/php/php_5.5.26.bb b/meta-oe/recipes-devtools/php/php_5.5.26.bb
index 8b64b2b..85fdccb 100644
--- a/meta-oe/recipes-devtools/php/php_5.5.26.bb
+++ b/meta-oe/recipes-devtools/php/php_5.5.26.bb
@@ -101,6 +101,7 @@ PACKAGECONFIG[imap] = "--with-imap=${STAGING_DIR_HOST} \
 export PHP_NATIVE_DIR = "${STAGING_BINDIR_NATIVE}"
 export PHP_PEAR_PHP_BIN = "${STAGING_BINDIR_NATIVE}/php"
 CFLAGS += " -D_GNU_SOURCE -g -DPTYS_ARE_GETPT -DPTYS_ARE_SEARCHED -I${STAGING_INCDIR}/apache2"
+CFLAGS_append_aarch64 = " -O2"
 
 EXTRA_OEMAKE = "INSTALL_ROOT=${D}"
 
-- 
1.9.1