libvpx: Pull from upstream

source/libvpx/build/make/configure.sh

 #!/bin/sh
 ##
 ##  configure.sh
 ##
 ##  This script is sourced by the main configure script and contains
 ##  utility functions and other common bits that aren't strictly libvpx
 ##  related.
 ##
 ##  This build system is based in part on the FFmpeg configure script.
 ##
@@ skipping 907 matching lines @@
             soft_enable realtime_only
             if [ ${tgt_isa} = "armv7" ]; then
                 soft_enable runtime_cpu_detect
             fi
             if enabled runtime_cpu_detect; then
                 add_cflags "-I${SDK_PATH}/sources/android/cpufeatures"
             fi
           ;;
 
         darwin*)
-            if [ -z "${sdk_path}" ]; then
-                SDK_PATH=`xcode-select -print-path 2> /dev/null`
-                SDK_PATH=${SDK_PATH}/Platforms/iPhoneOS.platform/Developer
-            else
-                SDK_PATH=${sdk_path}
-            fi
-            TOOLCHAIN_PATH=${SDK_PATH}/usr/bin
-            CXX=${TOOLCHAIN_PATH}/g++
-            CC=${TOOLCHAIN_PATH}/gcc
-            AR=${TOOLCHAIN_PATH}/ar
-            LD=${TOOLCHAIN_PATH}/arm-apple-darwin10-llvm-gcc-4.2
-            AS=${TOOLCHAIN_PATH}/as
-            STRIP=${TOOLCHAIN_PATH}/strip
-            NM=${TOOLCHAIN_PATH}/nm
+
+            XCRUN_FIND="xcrun --sdk iphoneos -find"
+            CXX="$(${XCRUN_FIND} clang++)"
+            CC="$(${XCRUN_FIND} clang)"
+            AR="$(${XCRUN_FIND} ar)"
+            LD="$(${XCRUN_FIND} ld)"
+            AS="$(${XCRUN_FIND} as)"
+            STRIP="$(${XCRUN_FIND} strip)"
+            NM="$(${XCRUN_FIND} nm)"
+            RANLIB="$(${XCRUN_FIND} ranlib)"
             AS_SFX=.s
 
             # ASFLAGS is written here instead of using check_add_asflags
             # because we need to overwrite all of ASFLAGS and purge the
             # options that were put in above
-            ASFLAGS="-version -arch ${tgt_isa} -g"
+            ASFLAGS="-arch ${tgt_isa} -g"
 
-            add_cflags -arch ${tgt_isa}
-            add_ldflags -arch_only ${tgt_isa}
-
-            if [ -z "${alt_libc}" ]; then
-                alt_libc=${SDK_PATH}/SDKs/iPhoneOS6.0.sdk
-            fi
-
-            add_cflags  "-isysroot ${alt_libc}"
-
-            # Add the paths for the alternate libc
-            for d in usr/include; do
-                try_dir="${alt_libc}/${d}"
-                [ -d "${try_dir}" ] && add_cflags -I"${try_dir}"
-            done
+            alt_libc="$(xcrun --sdk iphoneos --show-sdk-path)"
+            add_cflags -arch ${tgt_isa} -isysroot ${alt_libc}
+            add_ldflags -arch ${tgt_isa} -ios_version_min 7.0
 
             for d in lib usr/lib usr/lib/system; do
                 try_dir="${alt_libc}/${d}"
                 [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
             done
 
             asm_conversion_cmd="${source_path}/build/make/ads2gas_apple.pl"
          ;;
 
         linux*)
@@ skipping 111 matching lines @@
                 setup_gnu_toolchain
                 #for 32 bit x86 builds, -O3 did not turn on this flag
                 enabled optimizations && disabled gprof && check_add_cflags -fomit-frame-pointer
             ;;
             vs*)
                 # When building with Microsoft Visual Studio the assembler is
                 # invoked directly. Checking at configure time is unnecessary.
                 # Skip the check by setting AS arbitrarily
                 AS=msvs
                 msvs_arch_dir=x86-msvs
+                vc_version=${tgt_cc##vs}
+                case $vc_version in
+                    7|8|9|10)
+                         echo "${tgt_cc} does not support avx/avx2, disabling....."
+                         RTCD_OPTIONS="${RTCD_OPTIONS}--disable-avx --disable-avx2 "
+                         soft_disable avx
+                         soft_disable avx2
+                    ;;
+                esac
             ;;
         esac
 
         soft_enable runtime_cpu_detect
         soft_enable mmx
         soft_enable sse
         soft_enable sse2
         soft_enable sse3
         soft_enable ssse3
         # We can't use 'check_cflags' until the compiler is configured and CC is
@@ skipping 242 matching lines @@
     # Prepare the PWD for building.
     for f in ${OOT_INSTALLS}; do
             install -D ${source_path}/$f $f
     done
     fi
     cp ${source_path}/build/make/Makefile .
 
     clean_temp_files
     true
 }