gnu: webrtc-audio-processing: Fix build on i686 and powerpc64le.

* gnu/packages/audio.scm (webrtc-audio-processing)[arguments]: New field.
* gnu/packages/patches/webrtc-audio-processing-byte-order-pointer-size.patch,
gnu/packages/patches/webrtc-audio-processing-x86-no-sse.patch: New files.
* gnu/local.mk (dist_patch_DATA): Add them.

Change-Id: I3a95e5e2794df0d51e005672b5d3e2d98f27b767
Co-authored-by: Ludovic Courtès <ludo@gnu.org>

4 files changed, 69 insertions, 0 deletions

diff --git a/gnu/local.mk b/gnu/local.mk
index aba33c131d..4998db682c 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -2283,6 +2283,8 @@ dist_patch_DATA =						\
   %D%/packages/patches/wcstools-extend-makefiles.patch	\
   %D%/packages/patches/wdl-link-libs-and-fix-jnetlib.patch	\
   %D%/packages/patches/webkitgtk-adjust-bubblewrap-paths.patch	\
+  %D%/packages/patches/webrtc-audio-processing-byte-order-pointer-size.patch \
+  %D%/packages/patches/webrtc-audio-processing-x86-no-sse.patch	\
   %D%/packages/patches/webrtc-for-telegram-desktop-unbundle-libsrtp.patch \
   %D%/packages/patches/websocketpp-fix-for-cmake-3.15.patch	\
   %D%/packages/patches/wlroots-hwdata-fallback.patch		\
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index 52033c46ab..6be49f7768 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -315,6 +315,28 @@ displays a histogram of the roundtrip time jitter.")
        (sha256
         (base32 "0xfvq5lxg612vfzk3zk6896zcb4cgrrb7fq76w9h40magz0jymcm"))))
     (build-system meson-build-system)
+    (arguments
+     (list #:configure-flags (if (target-x86-32?)
+                                 #~(list "-Dc_args=-DPFFFT_SIMD_DISABLE")
+                                 #~'())
+           #:phases
+           (if (or (target-x86-32?) (target-powerpc?))
+               #~(modify-phases %standard-phases
+                   (add-after 'unpack 'apply-patches
+                     (lambda _
+                       (define (patch file)
+                         (invoke "patch" "-p1" "--force" "-i" file))
+
+                       ;; https://gitlab.freedesktop.org/pulseaudio/webrtc-audio-processing/-/issues/5
+                       ;; TODO: Move to the 'patches' field of the origin on
+                       ;; the next rebuild.
+                       (patch #$(local-file
+                                 (search-patch
+                                  "webrtc-audio-processing-byte-order-pointer-size.patch")))
+                       (patch #$(local-file
+                                 (search-patch
+                                  "webrtc-audio-processing-x86-no-sse.patch"))))))
+               #~%standard-phases)))
     (native-inputs (list pkg-config))
     (inputs (list abseil-cpp))
     (synopsis "WebRTC's Audio Processing Library")
diff --git a/gnu/packages/patches/webrtc-audio-processing-byte-order-pointer-size.patch b/gnu/packages/patches/webrtc-audio-processing-byte-order-pointer-size.patch
new file mode 100644
index 0000000000..e2d974afd9
--- /dev/null
+++ b/gnu/packages/patches/webrtc-audio-processing-byte-order-pointer-size.patch
@@ -0,0 +1,32 @@
+https://bugs.gentoo.org/917493
+https://sources.debian.org/src/webrtc-audio-processing/1.0-0.2/debian/patches/Add-generic-byte-order-and-pointer-size-detection.patch/
+
+Description: Add generic byte order and pointer size detection
+Author: Than <than@redhat.com>
+Origin: https://bugs.freedesktop.org/show_bug.cgi?id=95738#c4
+Last-Update: 2022-02-01
+---
+This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
+--- a/webrtc/rtc_base/system/arch.h
++++ b/webrtc/rtc_base/system/arch.h
+@@ -58,7 +58,19 @@
+ #define WEBRTC_ARCH_32_BITS
+ #define WEBRTC_ARCH_LITTLE_ENDIAN
+ #else
+-#error Please add support for your architecture in rtc_base/system/arch.h
++/* instead of failing, use typical unix defines... */
++#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
++#define WEBRTC_ARCH_LITTLE_ENDIAN
++#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
++#define WEBRTC_ARCH_BIG_ENDIAN
++#else
++#error __BYTE_ORDER__ is not defined
++#endif
++#if defined(__LP64__)
++#define WEBRTC_ARCH_64_BITS
++#else
++#define WEBRTC_ARCH_32_BITS
++#endif
+ #endif
+ 
+ #if !(defined(WEBRTC_ARCH_LITTLE_ENDIAN) ^ defined(WEBRTC_ARCH_BIG_ENDIAN))
diff --git a/gnu/packages/patches/webrtc-audio-processing-x86-no-sse.patch b/gnu/packages/patches/webrtc-audio-processing-x86-no-sse.patch
new file mode 100644
index 0000000000..c194dd9244
--- /dev/null
+++ b/gnu/packages/patches/webrtc-audio-processing-x86-no-sse.patch
@@ -0,0 +1,13 @@
+https://bugs.gentoo.org/921140
+https://gitlab.freedesktop.org/pulseaudio/webrtc-audio-processing/-/issues/5
+--- a/webrtc/rtc_base/system/arch.h
++++ b/webrtc/rtc_base/system/arch.h
+@@ -34,7 +34,7 @@
+ #else
+ #define WEBRTC_ARCH_32_BITS
+ #endif
+-#elif defined(_M_IX86) || defined(__i386__)
++#elif defined(__SSE__) && (defined(_M_IX86) || defined(__i386__))
+ #define WEBRTC_ARCH_X86_FAMILY
+ #define WEBRTC_ARCH_X86
+ #define WEBRTC_ARCH_32_BITS