Update libvpx snapshot to v0.9.7-p1 (Cayuga).

source/libvpx/build/make/configure.sh

Index: source/libvpx/build/make/configure.sh
===================================================================
--- source/libvpx/build/make/configure.sh	(revision 96967)
+++ source/libvpx/build/make/configure.sh	(working copy)
@@ -412,11 +412,14 @@
 write_common_target_config_h() {
     cat > ${TMP_H} << EOF
 /* This file automatically generated by configure. Do not edit! */
+#ifndef VPX_CONFIG_H
+#define VPX_CONFIG_H
 #define RESTRICT    ${RESTRICT}
 EOF
     print_config_h ARCH   "${TMP_H}" ${ARCH_LIST}
     print_config_h HAVE   "${TMP_H}" ${HAVE_LIST}
     print_config_h CONFIG "${TMP_H}" ${CONFIG_LIST}
+    echo "#endif /* VPX_CONFIG_H */" >> ${TMP_H}
     mkdir -p `dirname "$1"`
     cmp "$1" ${TMP_H} >/dev/null 2>&1 || mv ${TMP_H} "$1"
 }
@@ -626,7 +629,7 @@
     case ${toolchain} in
         sparc-solaris-*)
             add_extralibs -lposix4
-            add_cflags "-DMUST_BE_ALIGNED"
+            disable fast_unaligned
             ;;
         *-solaris-*)
             add_extralibs -lposix4
@@ -639,8 +642,8 @@
     # on arm, isa versions are supersets
     enabled armv7a && soft_enable armv7 ### DEBUG
     enabled armv7 && soft_enable armv6
-    enabled armv6 && soft_enable armv5te
-    enabled armv6 && soft_enable fast_unaligned
+    enabled armv7 || enabled armv6 && soft_enable armv5te
+    enabled armv7 || enabled armv6 && soft_enable fast_unaligned
     enabled iwmmxt2 && soft_enable iwmmxt
     enabled iwmmxt && soft_enable armv5te
 
@@ -689,7 +692,7 @@
             if enabled armv7
                 then
                     check_add_cflags --cpu=Cortex-A8 --fpu=softvfp+vfpv3
-                    check_add_asflags --cpu=Cortex-A8 --fpu=none
+                    check_add_asflags --cpu=Cortex-A8 --fpu=softvfp+vfpv3
                 else
                     check_add_cflags --cpu=${tgt_isa##armv}
                     check_add_asflags --cpu=${tgt_isa##armv}
@@ -729,19 +732,18 @@
             add_cflags -arch ${tgt_isa}
             add_ldflags -arch_only ${tgt_isa}
 
-            add_cflags  "-isysroot /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS4.2.sdk"
+            add_cflags  "-isysroot ${SDK_PATH}/SDKs/iPhoneOS4.3.sdk"
 
             # This should be overridable
-            alt_libc=${SDK_PATH}/SDKs/iPhoneOS4.2.sdk
+            alt_libc=${SDK_PATH}/SDKs/iPhoneOS4.3.sdk
 
             # Add the paths for the alternate libc
-#            for d in usr/include usr/include/gcc/darwin/4.0/; do
-            for d in usr/include usr/include/gcc/darwin/4.0/ usr/lib/gcc/arm-apple-darwin10/4.2.1/include/; do
+            for d in usr/include usr/include/gcc/darwin/4.2/ usr/lib/gcc/arm-apple-darwin10/4.2.1/include/; do
                 try_dir="${alt_libc}/${d}"
                 [ -d "${try_dir}" ] && add_cflags -I"${try_dir}"
             done
 
-            for d in lib usr/lib; do
+            for d in lib usr/lib usr/lib/system; do
                 try_dir="${alt_libc}/${d}"
                 [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
             done
@@ -752,41 +754,24 @@
         linux*)
             enable linux
             if enabled rvct; then
-                # Compiling with RVCT requires an alternate libc (glibc) when
-                # targetting linux.
-                disabled builtin_libc \
-                    || die "Must supply --libc when targetting *-linux-rvct"
+                # Check if we have CodeSourcery GCC in PATH. Needed for
+                # libraries
+                hash arm-none-linux-gnueabi-gcc 2>&- || \
+                  die "Couldn't find CodeSourcery GCC from PATH"
 
-                # Set up compiler
-                add_cflags --library_interface=aeabi_glibc
-                add_cflags --no_hide_all
-                add_cflags --dwarf2
+                # Use armcc as a linker to enable translation of
+                # some gcc specific options such as -lm and -lpthread.
+                LD="armcc --translate_gcc"
 
-                # Set up linker
-                add_ldflags --sysv --no_startup --no_ref_cpp_init
-                add_ldflags --entry=_start
-                add_ldflags --keep '"*(.init)"' --keep '"*(.fini)"'
-                add_ldflags --keep '"*(.init_array)"' --keep '"*(.fini_array)"'
-                add_ldflags --dynamiclinker=/lib/ld-linux.so.3
-                add_extralibs libc.so.6 -lc_nonshared crt1.o crti.o crtn.o
+                # create configuration file (uses path to CodeSourcery GCC)
+                armcc --arm_linux_configure --arm_linux_config_file=arm_linux.cfg
 
-                # Add the paths for the alternate libc
-                for d in usr/include; do
-                    try_dir="${alt_libc}/${d}"
-                    [ -d "${try_dir}" ] && add_cflags -J"${try_dir}"
-                done
-                add_cflags -J"${RVCT31INC}"
-                for d in lib usr/lib; do
-                    try_dir="${alt_libc}/${d}"
-                    [ -d "${try_dir}" ] && add_ldflags -L"${try_dir}"
-                done
-
-
-                # glibc has some struct members named __align, which is a
-                # storage modifier in RVCT. If we need to use this modifier,
-                # we'll have to #undef it in our code. Note that this must
-                # happen AFTER all libc inclues.
-                add_cflags -D__align=x_align_x
+                add_cflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
+                add_asflags --no_hide_all --apcs=/interwork
+                add_ldflags --arm_linux_paths --arm_linux_config_file=arm_linux.cfg
+                enabled pic && add_cflags --apcs=/fpic
+                enabled pic && add_asflags --apcs=/fpic
+                enabled shared && add_cflags --shared
             fi
         ;;
 
@@ -885,6 +870,8 @@
                 link_with_cc=gcc
                 tune_cflags="-march="
             setup_gnu_toolchain
+                #for 32 bit x86 builds, -O3 did not turn on this flag
+                enabled optimizations && check_add_cflags -fomit-frame-pointer
                 ;;
         esac
 
@@ -952,15 +939,23 @@
     enabled gcov &&
         check_add_cflags -fprofile-arcs -ftest-coverage &&
         check_add_ldflags -fprofile-arcs -ftest-coverage
+
     if enabled optimizations; then
-        enabled rvct && check_add_cflags -Otime
-        enabled small && check_add_cflags -O2 || check_add_cflags -O3
+        if enabled rvct; then
+            enabled small && check_add_cflags -Ospace || check_add_cflags -Otime
+        else
+            enabled small && check_add_cflags -O2 ||  check_add_cflags -O3
+        fi
     fi
 
     # Position Independent Code (PIC) support, for building relocatable
     # shared objects
     enabled gcc && enabled pic && check_add_cflags -fPIC
 
+    # Work around longjmp interception on glibc >= 2.11, to improve binary
+    # compatibility. See http://code.google.com/p/webm/issues/detail?id=166
+    enabled linux && check_add_cflags -D_FORTIFY_SOURCE=0
+
     # Check for strip utility variant
     ${STRIP} -V 2>/dev/null | grep GNU >/dev/null && enable gnu_strip
 
@@ -979,6 +974,9 @@
         esac
     fi
 
+    # for sysconf(3) and friends.
+    check_header unistd.h
+
     # glibc needs these
     if enabled linux; then
         add_cflags -D_LARGEFILE_SOURCE