LuaJIT build script also builds for x86 and added the binary. First step to optional support of x86 android devices

jni/LuaJIT-2.1/buildandroid.sh

@@ -8,7 +8,8 @@ host_os=`uname -s | tr "[:upper:]" "[:lower:]"`
 host_arch=`uname -m`
 
 if [ -f android/armeabi/libluajit.a ] &&
-    [ -f android/armeabi-v7a/libluajit.a ]; then
+        [ -f android/armeabi-v7a/libluajit.a ] &&
+        [ -f android/x86/libluajit.a ]; then
     echo "LuaJIT Already built"
     exit 0
 fi
@@ -27,20 +28,37 @@ if [[ x$NDK = "x" ]]; then
 fi
 
 NDKABI=9
-NDKVER=$NDK/toolchains/arm-linux-androideabi-4.8
-NDKP=$NDKVER/prebuilt/${host_os}-${host_arch}/bin/arm-linux-androideabi-
-NDKF="--sysroot $NDK/platforms/android-$NDKABI/arch-arm"
-CFLAGS=""
+
+# Since OSX still has bash 3, we don't have associative arrays, fake them instead
+armeabi=0
+armeabiv7a=1
+x86=2
+
+NDKVER[$armeabi]="$NDK/toolchains/arm-linux-androideabi-4.8"
+NDKP[$armeabi]="${NDKVER[$armeabi]}/prebuilt/${host_os}-${host_arch}/bin/arm-linux-androideabi-"
+NDKF[$armeabi]="--sysroot \"$NDK/platforms/android-$NDKABI/arch-arm\""
+CFLAGS[$armeabi]=""
+
+NDKVER[$armeabiv7a]="${NDKVER[$armeabi]}"
+NDKP[$armeabiv7a]="${NDKP[$armeabi]}"
+NDKF[$armeabiv7a]="${NDKF[$armeabi]}"
+CFLAGS[$armeabiv7a]="${CFLAGS[$armeabi]}"
+
+NDKVER[$x86]="$NDK/toolchains/x86-4.8"
+NDKP[$x86]="${NDKVER[$x86]}/prebuilt/${host_os}-${host_arch}/bin/i686-linux-android-"
+NDKF[$x86]="--sysroot \"$NDK/platforms/android-$NDKABI/arch-x86\""
+CFLAGS[$x86]="-DLUAJIT_NO_LOG2"
 
 buildLuaJIT()
 {
-    arch="$1"
-    ndkarch="$2"
+    archkey="$1"
+    arch="$2"
+    ndkarch="$3"
     DESTDIR=../android/$arch
     mkdir -p $DESTDIR 2>/dev/null
     rm "$DESTDIR"/*.a 2>/dev/null
     make clean
-    make HOST_CC="gcc -m32" CROSS=$NDKP TARGET_SYS=Linux TARGET_FLAGS="$NDKF $ndkarch" TARGET_CFLAGS="$CFLAGS" libluajit.a
+    make HOST_CC="gcc -m32" CROSS="${NDKP[$archkey]}" TARGET_SYS=Linux TARGET_FLAGS="${NDKF[$archkey]} $ndkarch" TARGET_CFLAGS="${CFLAGS[$archkey]}" libluajit.a
 
     if [ -f libluajit.a ]; then
         mv libluajit.a $DESTDIR/libluajit.a
@@ -50,9 +68,12 @@ buildLuaJIT()
 cd src
 
 # Android/ARM, armeabi (ARMv5TE soft-float), Android 2.2+ (Froyo)
-buildLuaJIT armeabi
+buildLuaJIT $armeabi armeabi
 
 # Android/ARM, armeabi-v7a (ARMv7 VFP), Android 4.0+ (ICS)
-buildLuaJIT armeabi-v7a "-march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -Wl,--fix-cortex-a8"
+buildLuaJIT $armeabiv7a armeabi-v7a "-march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -Wl,--fix-cortex-a8"
+
+# Android/x86
+buildLuaJIT $x86 x86
 
 make clean