Comment 0 for bug 1084852

When passing 'arm_float_abi=hard arm_thumb=1 arm_neon=0 arm_fpu=vfpv3-d16 target_arch=arm', Chromium still tries to build with NEON:
/usr/lib/gcc/arm-linux-gnueabihf/4.7/include/arm_neon.h:32:2: error: #error You must enable NEON instructions (e.g. -mfloat-abi=softfp -mfpu=neon) to use arm_neon.h
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c: In function 'WebRtcIsacfix_AutocorrNeon':
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:44:3: error: unknown type name 'int16x4_t'
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:45:3: error: unknown type name 'int64x1_t'
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:46:3: error: unknown type name 'int64x1_t'
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:47:3: error: unknown type name 'int32x4_t'
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:48:3: error: unknown type name 'int64x2_t'
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:48:3: warning: implicit declaration of function 'vdupq_n_s64' [-Wimplicit-function-declaration]
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:53:5: warning: implicit declaration of function 'vld1_s16' [-Wimplicit-function-declaration]
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:54:5: warning: implicit declaration of function 'vmull_s16' [-Wimplicit-function-declaration]
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:55:5: warning: implicit declaration of function 'vpadalq_s32' [-Wimplicit-function-declaration]
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:57:3: warning: implicit declaration of function 'vget_low_s64' [-Wimplicit-function-declaration]
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:58:3: warning: implicit declaration of function 'vget_high_s64' [-Wimplicit-function-declaration]
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:59:3: warning: implicit declaration of function 'vadd_s64' [-Wimplicit-function-declaration]
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:76:3: warning: implicit declaration of function 'vshl_s64' [-Wimplicit-function-declaration]
third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.c:79:3: warning: implicit declaration of function 'vget_lane_s64' [-Wimplicit-function-declaration]
make[1]: *** [out/Release/obj.target/isac_neon/third_party/webrtc/modules/audio_coding/codecs/isac/fix/source/filters_neon.o] Error 1
make[1]: *** Waiting for unfinished jobs....

Full log:
https://launchpadlibrarian.net/124450518/buildlog_ubuntu-raring-armhf.chromium-browser_23.0.1271.91-0ubuntu1_FAILEDTOBUILD.txt.gz