关于arm-eabi-gcc和交叉编译

Question

我有一个复杂的开源库,需要移植到Android NDK.首先,我需要配置(./ Configure).我理解:我必须用/ home/user/android-ndk/build/prebuilt/linux-x86/arm-eabi-4.4.0/bin/arm-eabi-gcc进行交叉编译我认为对吗？该实用程序将正确配置库？如果是,那么问题2:

我正在尝试编译这样一个库:libao.使用这些命令:

PREBUILT = / home/user/android-ndk/build/prebuilt/linux-x86/arm- 
eabi-4.4.0 
PLATFORM = / home/user/android-ndk/build/platforms/android-3/arch-arm 
INSTALL = / home/user/sox-14.3.2/com 

export CC = "/ home/user/android-ndk/build/prebuilt/linux-x86/arm- 
eabi-4.4.0/bin/arm-eabi-gcc" 
export CFLAGS = "-fPIC-DANDROID" 
export LDFLAGS = "-Wl,-T, $ PREBUILT / arm-eabi / lib / ldscripts / 
armelf.x-Wl,-rpath-link = $ PLATFORM / usr / lib-L $ PLATFORM / usr / 
lib-nostdlib $ PREBUILT / lib/gcc/arm-eabi/4.4.0/crtbegin.o $ PREBUILT/ 
lib/gcc/arm-eabi/4.4.0/crtend.o-lc-lm-ldl " 

. / Configure - host = arm - with-gnu-ld - enable-shared \ 

在程序集结束时收到以下内容:configure:error:在此平台上找不到16位类型!

这意味着什么？如何修复和正确配置库？也许我可以更容易地配置库？

Answer 1

我认为使用./configure脚本为Android构建库很困难(甚至不可能).Android有自己的构建系统Android.mk用于本机代码,我认为这将是最简单的方法.您必须手动准备这样的makefile,然后使用NDK附带的ndk-build脚本.与NDK示例一起安装,您可以检查这些文件的外观.

如果您只想运行configure来生成config.h,请点击此链接http://warpedtimes.wordpress.com/2010/02/03/building-open-source-libraries-with-android-ndk/.它包含以下信息:./configure的以下参数集可能有效

./configure –host=arm-eabi CC=arm-eabi-gcc CPPFLAGS=”-I$ANDROID_ROOT/build/platforms/android-3/arch-arm/usr/include/” CFLAGS=”-nostdlib” LDFLAGS=”-Wl,-rpath-link=$ANDROID_ROOT/build/platforms/android-3/arch-arm/usr/lib/ -L$ANDROID_ROOT/build/platforms/android-3/arch-arm/usr/lib/” LIBS=”-lc “