FIX: issues ShiqiYu#222

README.md

@@ -21,6 +21,7 @@ It should be compiled at any platform which support C/C++.
 
 Some tips:
 
+  * Please add -DFACEDETECTION_EXPORT to gcc/g++ flags or add /DFACEDETECTION_EXPORT to Microsoft Visual Studio(cl). See: issues #222
   * Please add -O3 to turn on optimizations when you compile the source code using g++.
   * Please choose 'Maximize Speed/-O2' when you compile the source code using Microsoft Visual Studio.
   * You can enable OpenMP to speedup. But the best solution is to call the detection function in different threads.

build_android.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+if [ -n "$1" ]; then
+    ANDROID_NDK=$1
+fi
+if [ -z "${ANDROID_NDK}" ]; then
+    echo "$0 ANDROID_NDK"
+    exit -1
+fi
+
+if [ -z "${ANDROID_STL}" ]; then
+   ANDROID_STL=c++_static
+fi
+
+if [ ! -d build_android ]; then
+    mkdir -p build_android
+fi
+cd build_android
+
+cmake .. -G"Unix Makefiles" -DCMAKE_INSTALL_PREFIX=install \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_VERBOSE_MAKEFILE=TRUE \
+    -DANDROID_ABI="arm64-v8a" \
+    -DANDROID_ARM_NEON=ON \
+    -DANDROID_PLATFORM=android-24 \
+    -DCMAKE_TOOLCHAIN_FILE=${ANDROID_NDK}/build/cmake/android.toolchain.cmake \
+    -DANDROID_STL=${ANDROID_STL} \
+    -DUSE_OPENMP=OFF \
+    -DENABLE_NEON=ON \
+    -DENABLE_AVX2=OFF \
+    -DDEMO=OFF
+
+cmake --build . --config Release -- -j`cat /proc/cpuinfo |grep 'cpu cores' |wc -l`
+
+cmake --build . --config Release --target install/strip -- -j`cat /proc/cpuinfo |grep 'cpu cores' |wc -l`
+
+cd ..