Bug 1195477 - part 1 - use -no-integrated-as for clang builds on ARM, moz.build changes; r=glandium

We have a lot of assembly written assuming gas's conventions, which
clang's integrated assembler doesn't support.  Disable the integrated
assembler for those pieces of code.

Author: froydnj

gfx/cairo/libpixman/src/moz.build

@@ -24,6 +24,10 @@ if CONFIG['OS_ARCH'] != 'Darwin' and CONFIG['GNU_CC']:
             'pixman-arm-simd-asm-scaled.S',
             'pixman-arm-simd-asm.S',
         ]
+    if CONFIG['CLANG_CXX']:
+        ASFLAGS += [
+            '-no-integrated-as',
+        ]
 
 SOURCES += [
     'pixman-access-accessors.c',

media/libtheora/moz.build

@@ -104,3 +104,8 @@ if CONFIG['GNU_AS']:
             '-march=armv7-a',
             '-mfpu=neon',
         ]
+
+        if CONFIG['CLANG_CXX']:
+            ASFLAGS += [
+                '-no-integrated-as',
+            ]

media/libvpx/moz.build

@@ -51,6 +51,10 @@ if CONFIG['VPX_ARM_ASM']:
         LOCAL_INCLUDES += [
             '%%%s/sources/android/cpufeatures' % CONFIG['ANDROID_NDK'],
         ]
+    if CONFIG['CLANG_CXX']:
+        ASFLAGS += [
+            '-no-integrated-as',
+        ]
 
 # boolhuff_armv5te.asm defines the same functions as boolhuff.c instead of
 # using RTCD, so we have to make sure we only add one of the two.

media/openmax_dl/dl/moz.build

@@ -84,3 +84,9 @@ if CONFIG['CPU_ARCH'] == 'arm' and CONFIG['BUILD_ARM_NEON']:
     DEFINES['BIG_FFT_TABLE'] = True
 
     FINAL_LIBRARY = 'xul'
+
+    if CONFIG['CLANG_CXX']:
+        ASFLAGS += [
+            '-no-integrated-as',
+        ]
+