参考别人的话题，我这样做：
export ANDROID_ROOT=/home/jean/android-ndk-r8e
export PATH=$PATH:$ANDROID_ROOT/toolchains/arm-linux-androideabi-4.7/prebuilt/linux-x86/bin/
./configure --host=arm-linux-androideabi CC=arm-linux-androideabi-gcc CPPFLAGS="-I$ANDROID_ROOT/platforms/android-9/arch-arm/usr/include/ -I$ANDROID_ROOT/sources/cxx-stl/gnu-libstdc++/4.7/include" CFLAGS="-nostdlib" LDFLAGS="-Wl,-rpath-link=$ANDROID_ROOT/platforms/android-9/arch-arm/usr/lib/ -L$ANDROID_ROOT/platforms/android-9/arch-arm/usr/lib/" LIBS="-lc"
配置成功，但是报错，提示cannot find bits/c++config.h in include path，我搜索这个文件，发现它位于android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/ 4.7/libs/armeabi/include/bits，所以我将它复制到 android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.7/include 并再次制作，另一个错误：
/bin/bash ../libtool --tag=CXX --mode=compile arm-linux-androideabi-g++ -DHAVE_CONFIG_H -I. -I.. -I/home/jean/android-ndk-r8e/platforms/android-9/arch-arm/usr/include/ -I/home/jean/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.7/include -Wall -Wwrite-strings -Woverloaded-virtual -Wno-sign-compare -O2 -g -DNDEBUG -MT common.lo -MD -MP -MF .deps/common.Tpo -c -o common.lo `test -f 'google/protobuf/stubs/common.cc' || echo './'`google/protobuf/stubs/common.cc
libtool: compile: arm-linux-androideabi-g++ -DHAVE_CONFIG_H -I. -I.. -I/home/jean/android-ndk-r8e/platforms/android-9/arch-arm/usr/include/ -I/home/jean/android-ndk-r8e/sources/cxx-stl/gnu-libstdc++/4.7/include -Wall -Wwrite-strings -Woverloaded-virtual -Wno-sign-compare -O2 -g -DNDEBUG -MT common.lo -MD -MP -MF .deps/common.Tpo -c google/protobuf/stubs/common.cc -fPIC -DPIC -o .libs/common.o
../libtool: line 1125: arm-linux-androideabi-g++: command not found
make[2]: *** [common.lo] Error 1
这很奇怪，我已将 arm-linux-androideabi-g++ 路径添加到 PATH 并输入“arm-linux-androideabi-g++ --version”它有效，为什么 make 找不到它？
顺便说一句，如果我使用 sudo 执行配置或更改为超级用户，配置将报告错误。错误是：
checking for arm-linux-androideabi-gcc... arm-linux-androideabi-gcc
checking whether the C compiler works... no
configure: error: in `/home/jean/Dev/cpplibs/protobuf-2.5.0':
configure: error: C compiler cannot create executables