Autotools

autoconf调试方法

autoconf发生错误时，查看ffbuild/config.log中的提示

提示缺少build-aux

dev@develop:~/workspaces/libnl$ autoreconf
configure.ac:51: error: required file 'build-aux/ar-lib' not found
configure.ac:51:   'automake --add-missing' can install 'ar-lib'
configure.ac:51: error: required file 'build-aux/compile' not found
configure.ac:51:   'automake --add-missing' can install 'compile'
configure.ac:73: error: required file 'build-aux/config.guess' not found
configure.ac:73:   'automake --add-missing' can install 'config.guess'
configure.ac:73: error: required file 'build-aux/config.sub' not found
configure.ac:73:   'automake --add-missing' can install 'config.sub'
configure.ac:49: error: required file 'build-aux/install-sh' not found
configure.ac:49:   'automake --add-missing' can install 'install-sh'
configure.ac:73: error: required file 'build-aux/ltmain.sh' not found
configure.ac:49: error: required file 'build-aux/missing' not found
configure.ac:49:   'automake --add-missing' can install 'missing'
lib/Makefile.am: error: required file 'build-aux/depcomp' not found
lib/Makefile.am:   'automake --add-missing' can install 'depcomp'
parallel-tests: error: required file 'build-aux/test-driver' not found
parallel-tests:   'automake --add-missing' can install 'test-driver'

解决方法：

automake --add-missing
autoreconf -i

autotools构建的项目 交叉编译到ARM

./configure --host=arm --with-sysroot=$SYSROOT CC=${TCHAIN}gcc

autotools构建的项目 编译debug目标

CFLAGS="-O0 -ggdb3" ./configure