Use Ant compile demo and UT projects when NDK version lower than r18 (#3690)

* android-ndk-r18b and below use Ant to compile demo and unit_test projects

* give the ndk-version-check.sh executable permissions

Author: BenzhengZhang

Makefile

@@ -35,6 +35,8 @@ CCASFLAGS=$(CFLAGS)
 STATIC_LDFLAGS=-lstdc++
 STRIP ?= strip
 USE_STACK_PROTECTOR = Yes
+USE_LOW_VERSION_NDK=No
+USE_ANT=No
 
 SHAREDLIB_MAJORVERSION=7
 FULL_VERSION := 2.3.0
@@ -80,10 +82,16 @@ endif
 # Make sure the all target is the first one
 all: libraries binaries
 
-ifeq ($(findstring android-ndk-r18, $(NDKROOT)), android-ndk-r18)
-    include $(SRC_PATH)build/platform-android-r18b.mk
+ifeq (android, $(OS))
+USE_LOW_VERSION_NDK = $(shell $(SRC_PATH)build/ndk-version-check.sh $(NDKROOT))
+ifeq (Yes, $(USE_LOW_VERSION_NDK))
+USE_ANT = Yes
+include $(SRC_PATH)build/platform-android-r18b.mk
 else
-    include $(SRC_PATH)build/platform-$(OS).mk
+include $(SRC_PATH)build/platform-android.mk
+endif
+else
+include $(SRC_PATH)build/platform-$(OS).mk
 endif
 
 MODULE := $(LIBPREFIX)$(MODULE_NAME).$(SHAREDLIBSUFFIX)
@@ -368,14 +376,23 @@ endif
 ifeq (android,$(OS))
 ifeq (./,$(SRC_PATH))
 codec_unittest$(EXEEXT):
+ifeq ($(USE_ANT), Yes)
+	cd ./test/build/android && $(NDKROOT)/ndk-build -B APP_ABI=$(APP_ABI) && android update project -t $(TARGET) -p . && ant debug
+else
 	$(NDK_BUILD) -C test/build/android -B
 	./gradlew unittest:assembleDebug
+endif
 
 clean_Android: clean_Android_ut
 clean_Android_ut:
+ifeq ($(USE_ANT), Yes)
+	-cd ./test/build/android && $(NDKROOT)/ndk-build APP_ABI=$(APP_ABI) clean && ant clean
+else
 	-$(NDK_BUILD) -C test/build/android -B clean
 	-./gradlew unittest:clean
 endif
+
+endif
 endif
 
 endif

build/ndk-version-check.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+#**********************************************************************************
+#    This script is using in Makefile to check the ndk version:
+#
+#   --usage:
+#             ./ndk-version-check.sh ndkroot
+#
+# date:  10/20/2023 Created
+#**********************************************************************************
+
+NDK_PATH=$1
+if [ ! -n "$NDK_PATH" ]
+then
+    exit 1
+fi
+NDK_VERSION=${NDK_PATH##*/}
+NDK_VERSION_NUM=`echo $NDK_VERSION | tr -cd "[0-9]"`
+
+if [ $NDK_VERSION_NUM -le 18 ]
+then
+    echo "Yes"
+fi