[build,android] only use CMake from SDK

* only use CMake from android SDK
* abort if CMake or ndk-build are not detected

scripts/android-build-common.sh

@@ -8,11 +8,11 @@ case "$(uname -s)" in
 
    Darwin)
 		 FIND_ARGS="-perm +111 $FIND_ARGS"
-     ;;
+	 ;;
 
    *)
 		 FIND_ARGS="-executable $FIND_ARGS"
-     ;;
+	 ;;
 esac
 
 if [ -z $BUILD_ARCH ]; then
@@ -96,10 +96,10 @@ function common_parse_arguments {
 	do
 		key="$1"
 		case $key in
-		    --conf)
-            source "$2" || exit 1
-            shift
-            ;;
+			--conf)
+		        source "$2" || exit 1
+		        shift
+		        ;;
 
 			--target)
 			NDK_TARGET="$2"
@@ -217,12 +217,20 @@ function common_check_requirements {
 	else
 		echo "ndk-build not found in NDK directory $ANDROID_NDK"
 		echo "assuming ndk-build is in path..."
-		NDK_BUILD=ndk-build
+		NDK_BUILD=$(which ndk-build)
+		if [ -z $NDK_BUILD ]; then
+			echo "ndk-build not found in $ANDROID_NDK and not in PATH"
+			exit 1
+		fi
 	fi
 
-    if [ -z $CMAKE_PROGRAM ]; then
-			CMAKE_PROGRAM=$(find $ANDROID_SDK/cmake -name cmake $FIND_ARGS)
-    fi
+	if [ -z $CMAKE_PROGRAM ]; then
+		CMAKE_PROGRAM=$(find $ANDROID_SDK/cmake -name cmake $FIND_ARGS)
+		if [ -z $CMAKE_PROGRAM ]; then
+			echo "CMake not found in $ANDROID_SDK, install CMake from the android SDK!"
+			exit 1
+		fi
+	fi
 
 	for CMD in make git $CMAKE_PROGRAM $NDK_BUILD
 	do

scripts/android-build-freerdp.sh

@@ -173,17 +173,17 @@ do
 	# Build and install the library.
 	if [ $DEPS_ONLY -eq 0 ];
 	then
-	common_run cd $BASE
-	common_run mkdir -p $BUILD_SRC/freerdp-build/$ARCH
-	common_run cd $BUILD_SRC/freerdp-build/$ARCH
-	common_run export ANDROID_NDK=$ANDROID_NDK
-	common_run $CMAKE_PROGRAM $CMAKE_CMD_ARGS \
-		-DANDROID_ABI=$ARCH \
-		-DCMAKE_INSTALL_PREFIX=$BUILD_DST/$ARCH \
-		-DCMAKE_INSTALL_LIBDIR=. \
-		$SRC_DIR
-	echo $(pwd)
-	common_run cmake --build . --target install
+		common_run cd $BASE
+		common_run mkdir -p $BUILD_SRC/freerdp-build/$ARCH
+		common_run cd $BUILD_SRC/freerdp-build/$ARCH
+		common_run export ANDROID_NDK=$ANDROID_NDK
+		common_run $CMAKE_PROGRAM $CMAKE_CMD_ARGS \
+			-DANDROID_ABI=$ARCH \
+			-DCMAKE_INSTALL_PREFIX=$BUILD_DST/$ARCH \
+			-DCMAKE_INSTALL_LIBDIR=. \
+			$SRC_DIR
+		echo $(pwd)
+		common_run $CMAKE_PROGRAM --build . --target install
 	fi
 done