错误代码：
[root@localhost libevent-2.0.21-stable]# ./configure && make && make install
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking build system type... x86_64-unknown-linux-gnu
checking host system type... x86_64-unknown-linux-gnu
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking whether gcc and cc understand -c and -o together... yes
checking for a sed that does not truncate output... /bin/sed
checking whether ln -s works... yes
checking how to run the C preprocessor... /lib/cpp
configure: error: in `/usr/local/src/libevent-2.0.21-stable':
configure: error: C preprocessor "/lib/cpp" fails sanity check
See `config.log' for more details
[root@localhost libevent-2.0.21-stable]#解决办法:
原因是缺少内核头文件
解决方法：
安装好了yum就能够安装kernel header，用如下命令安装：
yum install kernel-headers