我从 build_android.sh 得到这个错误：
./build_android.sh
configure: WARNING: If you wanted to set the --build type, don't use --host.
If a cross compiler is detected then cross compile mode will be used.
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for arm-linux-androideabi-strip... no
checking for strip... strip
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for arm-linux-androideabi-gcc... /home/kkho/home/kkho/adt-bundle-linux-x86-20130917/android-ndk-9/toolchains/arm-linux-androideabi-4.6/prebuilt/linux-x86/bin/arm-linux-androideabi-gcc --sysroot=/home/kkho/home/kkho/adt-bundle-linux-x86-20130917/android-ndk-9/platforms/android-8/arch-arm/
checking whether the C compiler works... no
配置：错误：在`/cygdrive/c/Android_Native_Development_Kit_Cookbook/1505OT_CodeBundle/Chapter_8/PortingWithBuildSystem/jni/libbmp-0.1.3'中：配置：错误：C编译器无法创建可执行文件
我正在使用 cygwin 在 Windows 上运行脚本，请帮助我！
build_android.sh
#!/bin/bash
NDK=/cygdrive/c/android-ndk-r9
SYSROOT=$NDK/platforms/android-18/arch-arm/
export CFLAGS="-mthumb"
export LDFLAGS="-Wl,--fix-cortex-a8"
export CC="$NDK/toolchains/arm-linux-androideabi-4.8/prebuilt/windows-x86_64/bin/arm-linux-androideabi-gcc --sysroot=$SYSROOT"
./configure \
--host=arm-linux-androideabi \
--prefix=$(pwd) \
--exec-prefix=$(pwd)
#--libdir=$(pwd) \
#--includedir=$(pwd)/include \
#--oldincludedir=$(pwd)/include \
make clean
make
make install
#$PREBUILT/bin/arm-linux-androideabi-ld -rpath-link=$PLATFORM/usr/lib -L$PLATFORM/usr/lib -soname libffmpeg.so -shared -nostdlib -z,noexecstack -Bsymbolic --whole-archive --no-undefined -o $PREFIX/libffmpeg.so ../x264/libx264.a libavcodec/libavcodec.a libavformat/libavformat.a libavutil/libavutil.a libswscale/libswscale.a libavfilter/libavfilter.a libswresample/libswresample.a -lc -lm -lz -ldl -llog --warn-once --dynamic-linker=/system/bin/linker $PREBUILT/lib/gcc/arm-linux-androideabi/4.4.3/libgcc.a