当我执行完./configure之后：checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking target system type... x86_64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for gcc... gcc
checking for C compiler default output file name... configure: error: C compiler cannot create executables
See `config.log' for more details.
gcc版本信息为：
gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4)
Copyright (C) 2010 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
http://blog.csdn.net/tyyhong/article/details/4266749
楼主可以参考这个文章看看，大致意思就是：
1、gcc是不是安装好了，自己写一个hello的Demo编译一下就知道。
2、是不是环境变量被修改了，改回来，
sh export LIBS=
sh export CFLAGS=