build: Make sure files with SSE2 code are compiled with -msse2

Signed-off-by: Arun Raghavan <arun@arunraghavan.net>

webrtc/common_audio/Makefile.am

@@ -93,10 +93,17 @@ libcommon_audio_la_SOURCES = resampler/include/push_resampler.h \
 			     window_generator.cc
 
 if HAVE_X86
-libcommon_audio_la_SOURCES += \
+noinst_LTLIBRARIES += libcommon_audio_sse2.la
+libcommon_audio_sse2_la_SOURCES = \
 			     resampler/sinc_resampler_sse.cc \
 			     fir_filter_sse.cc \
 			     fir_filter_sse.h
+
+libcommon_audio_sse2_la_CFLAGS = $(AM_CFLAGS) $(COMMON_CFLAGS) -msse2
+libcommon_audio_sse2_la_CXXFLAGS = $(AM_CXXFLAGS) $(COMMON_CXXFLAGS) -msse2
+libcommon_audio_sse2_la_LDFLAGS = $(AM_LDFLAGS)
+
+libcommon_audio_la_LIBADD = libcommon_audio_sse2.la
 endif
 
 if HAVE_ARM

webrtc/modules/audio_processing/Makefile.am

@@ -147,9 +147,14 @@ libwebrtc_audio_processing_la_SOURCES += \
 endif
 
 if HAVE_X86
-libwebrtc_audio_processing_la_SOURCES += \
+noinst_LTLIBRARIES = libwebrtc_audio_processing_privatearch.la
+LIBWEBRTC_PRIVATEARCH=libwebrtc_audio_processing_privatearch.la
+libwebrtc_audio_processing_privatearch_la_SOURCES = \
 					aec/aec_core_sse2.c \
 					aec/aec_rdft_sse2.c
+libwebrtc_audio_processing_privatearch_la_CFLAGS = $(AM_CFLAGS) $(COMMON_CFLAGS) -msse2
+libwebrtc_audio_processing_privatearch_la_CXXFLAGS = $(AM_CXXFLAGS) $(COMMON_CXXFLAGS) -msse2
+libwebrtc_audio_processing_privatearch_la_LDFLAGS = $(AM_LDFLAGS)
 endif
 
 if HAVE_NEON
@@ -167,6 +172,7 @@ libwebrtc_audio_processing_la_LIBADD = $(top_builddir)/webrtc/libwebrtc.la \
 				       $(top_builddir)/webrtc/system_wrappers/libsystem_wrappers.la \
 				       $(top_builddir)/webrtc/common_audio/libcommon_audio.la \
 				       $(top_builddir)/webrtc/modules/audio_coding/libaudio_coding.la \
+				       $(LIBWEBRTC_PRIVATEARCH) \
 				       -lpthread
 libwebrtc_audio_processing_la_LDFLAGS = $(AM_LDFLAGS) \
 					-Wl,--no-undefined \