fix for make.sh for android (capstone-engine#1523)

* fix for make.sh for android

* remove commented line

.gitignore

@@ -124,3 +124,6 @@ capstone_get_setup
 *.s
 
 cstool/cstool
+
+# android
+android-ndk-*

Makefile

@@ -22,6 +22,11 @@ endif
 
 ifeq ($(CROSS),)
 RANLIB ?= ranlib
+else ifeq ($(ANDROID), 1)
+CC = $(CROSS)/../../bin/clang
+AR = $(CROSS)/ar
+RANLIB = $(CROSS)/ranlib
+STRIP = $(CROSS)/strip
 else
 CC = $(CROSS)gcc
 AR = $(CROSS)ar
@@ -467,6 +472,7 @@ clean:
 	rm -f $(LIBOBJ)
 	rm -f $(BLDIR)/lib$(LIBNAME).* $(BLDIR)/$(LIBNAME).pc
 	rm -f $(PKGCFGF)
+	[ ${ANDROID} -eq 1 ] && rm -rf android-ndk-*
 	$(MAKE) -C cstool clean
 
 ifeq (,$(findstring yes,$(CAPSTONE_BUILD_CORE_ONLY)))

make.sh

@@ -13,6 +13,7 @@ build_android() {
     echo "ERROR! Please set \$NDK to point at your Android NDK directory."
     exit 1
   fi
+
   HOSTOS=$(uname -s | tr 'LD' 'ld')
   HOSTARCH=$(uname -m)
 
@@ -22,13 +23,11 @@ build_android() {
   case "$TARGARCH" in
     arm)
       [ -n "$APILEVEL" ] || APILEVEL="android-14"  # default to ICS
-      [ -n "$GCCVER" ] || GCCVER="4.8"
-      CROSS=arm-linux-androideabi-
+      CROSS=arm-linux-androideabi
       ;;
     arm64)
       [ -n "$APILEVEL" ] || APILEVEL="android-21"  # first with arm64
-      [ -n "$GCCVER" ] || GCCVER="4.9"
-      CROSS=aarch64-linux-android-
+      CROSS=aarch64-linux-android
       ;;
 
     *)
@@ -37,10 +36,16 @@ build_android() {
       ;;
   esac
 
-  TOOLCHAIN="$NDK/toolchains/$CROSS$GCCVER/prebuilt/$HOSTOS-$HOSTARCH"
-  PLATFORM="$NDK/platforms/$APILEVEL/arch-$TARGARCH"
+  STANDALONE=`realpath android-ndk-${TARGARCH}-${APILEVEL}`
+
+  [ -d $STANDALONE ] || {
+      python ${NDK}/build/tools/make_standalone_toolchain.py \
+             --arch ${TARGARCH} \
+             --api ${APILEVEL##*-} \
+             --install-dir ${STANDALONE}
+  }
 
-  CROSS="$TOOLCHAIN/bin/$CROSS" CFLAGS="--sysroot=$PLATFORM" LDFLAGS="--sysroot=$PLATFORM" ${MAKE} $*
+  ANDROID=1 CROSS="${STANDALONE}/${CROSS}/bin" CFLAGS="--sysroot=${STANDALONE}/sysroot" ${MAKE} $*
 }
 
 # build iOS lib for all iDevices, or only specific device