fix x86 sse2 runtime detection

tried and failed doing the same for arm neon support

webrtc-audio-processing-0.2-no_sse2_x86-ac.patch

@@ -1,12 +0,0 @@
-diff -up webrtc-audio-processing-0.2/configure.ac.no_sse2_x86 webrtc-audio-processing-0.2/configure.ac
---- webrtc-audio-processing-0.2/configure.ac.no_sse2_x86	2015-11-04 01:49:34.000000000 -0600
-+++ webrtc-audio-processing-0.2/configure.ac	2016-05-13 11:55:30.199168174 -0500
-@@ -56,7 +56,7 @@ AS_CASE(["${host}"],
- AC_SUBST(PLATFORM_CFLAGS)
- 
- AS_CASE(["${host_cpu}"],
--    [i?86|x86_64],
-+    [x86_64],
-         [
-          HAVE_X86=1
-         ],

webrtc-audio-processing-0.2-no_sse2_x86.patch

@@ -1,12 +0,0 @@
-diff -up webrtc-audio-processing-0.2/configure.no_sse2_x86 webrtc-audio-processing-0.2/configure
---- webrtc-audio-processing-0.2/configure.no_sse2_x86	2015-11-04 01:50:11.000000000 -0600
-+++ webrtc-audio-processing-0.2/configure	2016-05-13 11:55:38.964203868 -0500
-@@ -16104,7 +16104,7 @@ esac
- 
- 
- case "${host_cpu}" in #(
--  i?86|x86_64) :
-+  x86_64) :
- 
-          HAVE_X86=1
-          ;; #(

webrtc-audio-processing-0.2-x86_msse2.patch

@@ -0,0 +1,15 @@
+diff -up webrtc-audio-processing-0.2/configure.ac.x86_sse2 webrtc-audio-processing-0.2/configure.ac
+--- webrtc-audio-processing-0.2/configure.ac.x86_sse2	2015-11-04 01:49:34.000000000 -0600
++++ webrtc-audio-processing-0.2/configure.ac	2016-05-16 12:27:16.640796437 -0500
+@@ -56,6 +56,11 @@ AS_CASE(["${host}"],
+ AC_SUBST(PLATFORM_CFLAGS)
+ 
+ AS_CASE(["${host_cpu}"],
++    [i?86],
++        [
++         HAVE_X86=1
++         ARCH_CFLAGS="-msse2"
++        ],
+     [i?86|x86_64],
+         [
+          HAVE_X86=1

webrtc-audio-processing-0.2-x86_sse2_runtime_detection.patch

@@ -0,0 +1,12 @@
+diff -up webrtc-audio-processing-0.2/webrtc/common_audio/fir_filter.cc.x86_sse2 webrtc-audio-processing-0.2/webrtc/common_audio/fir_filter.cc
+--- webrtc-audio-processing-0.2/webrtc/common_audio/fir_filter.cc.x86_sse2	2015-11-19 06:41:44.000000000 -0600
++++ webrtc-audio-processing-0.2/webrtc/common_audio/fir_filter.cc	2016-05-16 12:31:21.558877588 -0500
+@@ -45,7 +45,7 @@ FIRFilter* FIRFilter::Create(const float
+   FIRFilter* filter = NULL;
+ // If we know the minimum architecture at compile time, avoid CPU detection.
+ #if defined(WEBRTC_ARCH_X86_FAMILY)
+-#if defined(__SSE2__)
++#if 0 //defined(__SSE2__)
+   filter =
+       new FIRFilterSSE2(coefficients, coefficients_length, max_input_length);
+ #else

webrtc-audio-processing.spec

@@ -1,8 +1,4 @@
 
-%ifarch %{arm}
-%global neon --enable-neon=no
-%endif
-
 Name:           webrtc-audio-processing
 Version:        0.2
 Release:        2%{?dist}
@@ -12,12 +8,9 @@ License:        BSD
 URL:            http://www.freedesktop.org/software/pulseaudio/webrtc-audio-processing/
 Source0:        http://freedesktop.org/software/pulseaudio/webrtc-audio-processing/%{name}-%{version}.tar.xz
 Patch0:		webrtc-fix-typedefs-on-other-arches.patch
-# can't use sse2 on %%ix86 in fedora
+Patch1:         webrtc-audio-processing-0.2-no_undefined.patch
-Patch1:         webrtc-audio-processing-0.2-no_sse2_x86.patch
+Patch2:         webrtc-audio-processing-0.2-x86_msse2.patch
-# match for patch1 when autoreconf'ing (unused, so far)
+Patch3:         webrtc-audio-processing-0.2-x86_sse2_runtime_detection.patch
-Patch10:         webrtc-audio-processing-0.2-no_sse2_x86-ac.patch
-
-Patch2:          webrtc-audio-processing-0.2-no_undefined.patch
 
 BuildRequires: automake libtool
 
@@ -37,15 +30,27 @@ files for developing applications that use %{name}.
 %prep
 %setup -q
 %patch0 -p1 -b .typedef
-%patch1 -p1 -b .no_sse2_x86
+%patch1 -p1 -b .no_undefined
-%patch10 -p1 -b .no_sse2_x86_ac
+%patch2 -p1 -b .x86_msse2
-%patch2 -p1 -b .no_undefined
+%ifarch %{ix86}
+%patch3 -p1 -b .x86_sse2_runtime_detection
+%endif
 
-# for patch10/patch2
+# for patch1/patch2
 autoreconf -fi
 
 
 %build
+
+%ifarch %{arm}
+# disable neon support
+# can't unconditionally enable neon, and --enable-neon=runtime is broken (WebRtc_GetCPUFeaturesARM is unimplemented)
+%global neon --enable-neon=no
+## hack to ensure -mfpu=neon flag appears last when using --enable-neon=yes|runtime
+#export CFLAGS="%{optflags} -mfpu=neon"
+#export CXXFLAGS="%{optflags} -mfpu=neon"
+%endif
+
 %configure \
   %{?neon} \
   --disable-silent-rules \
@@ -76,6 +81,7 @@ rm -fv %{buildroot}%{_libdir}/lib*.la
 %changelog
 * Mon May 16 2016 Rex Dieter <rdieter@fedoraproject.org> - 0.2-2
 - link w/ --no-undefined
+- fix x86 sse2 runtime detection
 
 * Thu May 12 2016 Rex Dieter <rdieter@fedoraproject.org> - 0.2-1
 - webrtc-audio-processing-0.2 (#1335536)