Introduce x87 port

Makefile.android

Index: Makefile.android
diff --git a/Makefile.android b/Makefile.android
index 396b58d7444d974330511f1f4afe7ad30612788f..d3ed1f43f9780133e8b9cdf19e52abbe0d25d361 100644
--- a/Makefile.android
+++ b/Makefile.android
@@ -26,7 +26,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 # Those definitions should be consistent with the main Makefile
-ANDROID_ARCHES = android_ia32 android_arm android_arm64 android_mipsel
+ANDROID_ARCHES = android_ia32 android_arm android_arm64 android_mipsel android_x87
 MODES = release debug
 
 # Generates all combinations of ANDROID ARCHES and MODES,
@@ -73,7 +73,14 @@ else
         TOOLCHAIN_PREFIX = i686-linux-android
         TOOLCHAIN_VER = 4.6
       else
-        $(error Target architecture "${ARCH}" is not supported)
+        ifeq ($(ARCH), android_x87)
+          DEFINES = target_arch=x87 v8_target_arch=x87 android_target_arch=x86 android_target_platform=14
+          TOOLCHAIN_ARCH = x86
+          TOOLCHAIN_PREFIX = i686-linux-android
+          TOOLCHAIN_VER = 4.6
+	else
+          $(error Target architecture "${ARCH}" is not supported)
+        endif
       endif
     endif
   endif