本文记录了在使用特定配置进行交叉编译时遇到的警告与错误，包括不安全的包含路径及代码中不可实现的约束问题，并探讨了解决方案。
./configure --prefix=/home/acer/omap3530/rtp/share --host=arm-none-linux-gnueabi CC=/usr/local/arm/arm-2009q1/bin/arm-none-linux-gnueabi-gcc CXX=/usr/local/arm/arm-2009q1/bin/arm-none-linux-gnueabi-g++
make时有错误
cc1: warning: include location "/usr/include" is unsafe for cross-compilation
cc1: warning: include location "/usr/include/directfb" is unsafe for cross-compilation
./src/audio/dma/SDL_dmaaudio.c: In function 'DMA_WaitAudio':
./src/audio/dma/SDL_dmaaudio.c:166: error: impossible constraint in 'asm'
make: *** [build/SDL_dmaaudio.lo] 错误 1
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