Add macosx Sierra (v10.12) support to configure.

Change-Id: Ib90be26f69c658a6be6e133097c41845db58b6e1
diff --git a/README b/README
index ed9eb2b..83e57fe 100644
--- a/README
+++ b/README
@@ -72,6 +72,8 @@
     x86-darwin12-gcc
     x86-darwin13-gcc
     x86-darwin14-gcc
+    x86-darwin15-gcc
+    x86-darwin16-gcc
     x86-iphonesimulator-gcc
     x86-linux-gcc
     x86-linux-icc
@@ -87,6 +89,8 @@
     x86_64-darwin12-gcc
     x86_64-darwin13-gcc
     x86_64-darwin14-gcc
+    x86_64-darwin15-gcc
+    x86_64-darwin16-gcc
     x86_64-iphonesimulator-gcc
     x86_64-linux-gcc
     x86_64-linux-icc
diff --git a/build/make/configure.sh b/build/make/configure.sh
index bc9cff8..c6a011b 100644
--- a/build/make/configure.sh
+++ b/build/make/configure.sh
@@ -733,6 +733,10 @@
         tgt_isa=x86_64
         tgt_os=darwin15
         ;;
+       *darwin16*)
+        tgt_isa=x86_64
+        tgt_os=darwin16
+        ;;
       x86_64*mingw32*)
         tgt_os=win64
         ;;
@@ -851,6 +855,10 @@
       add_cflags  "-mmacosx-version-min=10.11"
       add_ldflags "-mmacosx-version-min=10.11"
       ;;
+    *-darwin16-*)
+      add_cflags  "-mmacosx-version-min=10.12"
+      add_ldflags "-mmacosx-version-min=10.12"
+      ;;
     *-iphonesimulator-*)
       add_cflags  "-miphoneos-version-min=${IOS_VERSION_MIN}"
       add_ldflags "-miphoneos-version-min=${IOS_VERSION_MIN}"
diff --git a/build/make/iosbuild.sh b/build/make/iosbuild.sh
index ed25607..ca8214b 100755
--- a/build/make/iosbuild.sh
+++ b/build/make/iosbuild.sh
@@ -34,8 +34,8 @@
              armv7s-darwin-gcc"
 SIM_TARGETS="x86-iphonesimulator-gcc
              x86_64-iphonesimulator-gcc"
-OSX_TARGETS="x86-darwin15-gcc
-             x86_64-darwin15-gcc"
+OSX_TARGETS="x86-darwin16-gcc
+             x86_64-darwin16-gcc"
 TARGETS="${ARM_TARGETS} ${SIM_TARGETS}"
 
 # Configures for the target specified by $1, and invokes make with the dist
@@ -271,7 +271,7 @@
     --help: Display this message and exit.
     --enable-shared: Build a dynamic framework for use on iOS 8 or later.
     --extra-configure-args <args>: Extra args to pass when configuring libaom.
-    --macosx: Uses darwin15 targets instead of iphonesimulator targets for x86
+    --macosx: Uses darwin16 targets instead of iphonesimulator targets for x86
               and x86_64. Allows linking to framework when builds target MacOSX
               instead of iOS.
     --preserve-build-output: Do not delete the build directory.
diff --git a/configure b/configure
index c583dc6..6a86f05 100755
--- a/configure
+++ b/configure
@@ -125,6 +125,7 @@
 all_platforms="${all_platforms} x86-darwin13-gcc"
 all_platforms="${all_platforms} x86-darwin14-gcc"
 all_platforms="${all_platforms} x86-darwin15-gcc"
+all_platforms="${all_platforms} x86-darwin16-gcc"
 all_platforms="${all_platforms} x86-iphonesimulator-gcc"
 all_platforms="${all_platforms} x86-linux-gcc"
 all_platforms="${all_platforms} x86-linux-icc"
@@ -141,6 +142,7 @@
 all_platforms="${all_platforms} x86_64-darwin13-gcc"
 all_platforms="${all_platforms} x86_64-darwin14-gcc"
 all_platforms="${all_platforms} x86_64-darwin15-gcc"
+all_platforms="${all_platforms} x86_64-darwin16-gcc"
 all_platforms="${all_platforms} x86_64-iphonesimulator-gcc"
 all_platforms="${all_platforms} x86_64-linux-gcc"
 all_platforms="${all_platforms} x86_64-linux-icc"