MACOSXPPC: Update libvpx and don't let it use pthread_setname_np()

That API only appeared on OSX 10.6+.

Author: dwatteau

toolchains/macosx-ppc/packages/libvpx/build.sh

@@ -1,6 +1,7 @@
 #! /bin/sh
 
-LIBVPX_VERSION=1.13.0
+LIBVPX_VERSION=1.15.0
+#LIBVPX_VERSION=1.14.1
 #LIBVPX_SHA256=30f93e9c63ee627d1a2cedcf59ac34d45bf30240982f99e44c6e015466b4e73d
 
 PACKAGE_DIR=$(CDPATH= cd -- "$(dirname -- "$0")" && pwd)

toolchains/macosx-ppc/packages/libvpx/patches/disable-pthread_setname_np-on-older-osx.patch

@@ -0,0 +1,24 @@
+pthread_setname_np() doesn't exist before OSX 10.6
+
+--- a/vpx_util/vpx_thread.c
++++ b/vpx_util/vpx_thread.c
+@@ -27,6 +27,10 @@
+ 
+ #if CONFIG_MULTITHREAD
+ 
++#ifdef __APPLE__
++#include <AvailabilityMacros.h>
++#endif
++
+ struct VPxWorkerImpl {
+   pthread_mutex_t mutex_;
+   pthread_cond_t condition_;
+@@ -39,7 +43,7 @@ static void execute(VPxWorker *const worker);  // Forward declaration.
+ 
+ static THREADFN thread_loop(void *ptr) {
+   VPxWorker *const worker = (VPxWorker *)ptr;
+-#ifdef __APPLE__
++#if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
+   if (worker->thread_name != NULL) {
+     // Apple's version of pthread_setname_np takes one argument and operates on
+     // the current thread only. The maximum size of the thread_name buffer was

toolchains/macosx-ppc/packages/libvpx/patches/wrong-ppc-vpx-ports-type.patch

@@ -28,13 +28,3 @@ From MacPorts.
  #include "vpx_ports/ppc.h"
  #elif VPX_ARCH_MIPS
  #include "vpx_ports/mips.h"
-@@ -96,7 +96,7 @@
-   ctx->cpu_caps = arm_cpu_caps();
- #elif VPX_ARCH_X86 || VPX_ARCH_X86_64
-   ctx->cpu_caps = x86_simd_caps();
--#elif VPX_ARCH_PPC
-+#elif VPX_ARCH_PPC64LE
-   ctx->cpu_caps = ppc_simd_caps();
- #elif VPX_ARCH_MIPS
-   ctx->cpu_caps = mips_cpu_caps();
-