From ed7620ad48aee84ea9235902089d87a92516736c Mon Sep 17 00:00:00 2001
From: Wenbo Yang <solrex@gmail.com>
Date: Tue, 7 Feb 2017 09:48:40 +0800
Subject: [PATCH] Build scripts use NDK_HOME env var.

---
 third_party/build-openblas.sh       | 25 +++++++++++++++----------
 third_party/build-protobuf-3.1.0.sh | 13 +++++++++++--
 2 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/third_party/build-openblas.sh b/third_party/build-openblas.sh
index 4790005..03b3f11 100755
--- a/third_party/build-openblas.sh
+++ b/third_party/build-openblas.sh
@@ -8,10 +8,9 @@ MAKE_FLAGS="$MAKE_FLAGS -j 4"
 BUILD_DIR=".cbuild"
 
 # Options for Android
-ANDROID_NDK=/opt/android-ndk-r13b
 ANDROID_NATIVE_API_LEVEL=21
+# Options: "arm64-v8a" "armeabi-v7a with NEON"
 ANDROID_ABI="armeabi-v7a with NEON"
-ANDROID_ABI="arm64-v8a"
 
 # Build Environment
 if [ "$(uname)" = "Darwin" ]; then
@@ -61,14 +60,24 @@ function build-Android {
     echo "#####################"
     echo "$(tput sgr0)"
 
+    # Test ENV NDK_HOME
+    if [ ! -d "$NDK_HOME" ]; then
+        echo "$(tput setaf 2)"
+        echo "###########################################################"
+        echo " ERROR: Invalid NDK_HOME=\"$NDK_HOME\" env variable, exit. "
+        echo "###########################################################"
+        echo "$(tput sgr0)"
+        exit 1
+    fi
+
     if [ "${ANDROID_ABI}" = "armeabi-v7a with NEON" ]; then
-        CROSS_SUFFIX=$ANDROID_NDK/toolchains/arm-linux-androideabi-4.9/prebuilt/${OS}-${BIT}/bin/arm-linux-androideabi-
-        SYSROOT=$ANDROID_NDK/platforms/android-$ANDROID_NATIVE_API_LEVEL/arch-arm
+        CROSS_SUFFIX=$NDK_HOME/toolchains/arm-linux-androideabi-4.9/prebuilt/${OS}-${BIT}/bin/arm-linux-androideabi-
+        SYSROOT=$NDK_HOME/platforms/android-$ANDROID_NATIVE_API_LEVEL/arch-arm
         TARGET=ARMV7
         BINARY=32
     elif [ "${ANDROID_ABI}" = "arm64-v8a" ]; then
-        CROSS_SUFFIX=$ANDROID_NDK/toolchains/aarch64-linux-android-4.9/prebuilt/${OS}-${BIT}/bin/aarch64-linux-android-
-        SYSROOT=$ANDROID_NDK/platforms/android-$ANDROID_NATIVE_API_LEVEL/arch-arm64
+        CROSS_SUFFIX=$NDK_HOME/toolchains/aarch64-linux-android-4.9/prebuilt/${OS}-${BIT}/bin/aarch64-linux-android-
+        SYSROOT=$NDK_HOME/platforms/android-$ANDROID_NATIVE_API_LEVEL/arch-arm64
         TARGET=ARMV8
         BINARY=64
     else
@@ -106,9 +115,5 @@ function build-Android {
     cd ..
 }
 
-ANDROID_ABI="armeabi-v7a with NEON"
 fetch-OpenBLAS
 build-$PLATFORM
-#ANDROID_ABI="arm64-v8a"
-#fetch-OpenBLAS
-#build-$PLATFORM
diff --git a/third_party/build-protobuf-3.1.0.sh b/third_party/build-protobuf-3.1.0.sh
index fa53a90..caf9a84 100755
--- a/third_party/build-protobuf-3.1.0.sh
+++ b/third_party/build-protobuf-3.1.0.sh
@@ -13,7 +13,6 @@ MAKE_FLAGS="$MAKE_FLAGS -j 4"
 BUILD_DIR=".cbuild"
 
 # Options for Android
-ANDROID_NDK=/opt/android-ndk-r13b
 ANDROID_ABI="armeabi-v7a with NEON"
 ANDROID_NATIVE_API_LEVEL=21
 BUILD_PROTOC=OFF
@@ -76,6 +75,16 @@ function build-Android {
     echo "#####################"
     echo "$(tput sgr0)"
 
+    # Test ENV NDK_HOME
+    if [ ! -d "$NDK_HOME" ]; then
+        echo "$(tput setaf 2)"
+        echo "###########################################################"
+        echo " ERROR: Invalid NDK_HOME=\"$NDK_HOME\" env variable, exit. "
+        echo "###########################################################"
+        echo "$(tput sgr0)"
+        exit 1
+    fi
+
     mkdir -p protobuf-$PB_VERSION/$BUILD_DIR
     rm -rf protobuf-$PB_VERSION/$BUILD_DIR/*
     cd protobuf-$PB_VERSION/$BUILD_DIR
@@ -86,7 +95,7 @@ function build-Android {
     # fi
     cmake ../cmake -DCMAKE_INSTALL_PREFIX=../../protobuf-$TARGET\
         -DCMAKE_TOOLCHAIN_FILE="../../android-cmake/android.toolchain.cmake" \
-        -DANDROID_NDK="$ANDROID_NDK" \
+        -DANDROID_NDK="$NDK_HOME" \
         -DANDROID_ABI="$ANDROID_ABI" \
         -DANDROID_NATIVE_API_LEVEL="$ANDROID_NATIVE_API_LEVEL" \
         -Dprotobuf_BUILD_TESTS=OFF \