超級簡單直接上步驟
1 下載
wget https://downloads.sourceforge.net/lame/lame-3.100.tar.gz –no-check-certificat

2 解壓
tar xvf lame-3.100.tar.gz

3 建立交叉編譯環境

$NDK/build/tools/make-standalone-toolchain.sh –arch=x86_64 –platform=android-21 –install-dir=/tmp/x86_64-android-toolchain

4 在lame根目錄建立編譯指令碼build_x86.sh

export
 
 PATH=/tmp/x86_64-android-toolchain/bin:$PATH
export CC=x86_64-linux-android-gcc   # or export CC=clang
export CXX=x86_64-linux-android-g++  # or export CXX=clang++
export RANLIB="x86_64-linux-android-ranlib"
export STRIP="x86_64-linux-android-strip"
export AS=x86_64-linux-android-ar
export LD=x86_64-linux-android-ld
export
 
 NM=x86_64-linux-android-NM
export AR=x86_64-linux-android-ar


export CFLAGS="-D__ANDROID_API__=21"
export CXXFLAGS="-D__ANDROID_API__=21"
MYPATH=`pwd`

./configure --host=x86_64 \
--disable-shared \
--disable-frontend \
--enable-static \
--prefix=$MYPATH/x86_64

make clean
make -j8
make install

5 執行指令碼

交叉環境編譯參考:
https://developer.android.com/ndk/guides/standalone_toolchain?hl=zh-cn