configure: error: *** libmcrypt was not found解决方案
./configure
提示出错，首先提示
*** Could not run libmcrypt test program, checking why…
*** The test program failed to compile or link. See the file config.log for the
*** exact error that occured. This usually means LIBMCRYPT was incorrectly installed
*** or that you have moved LIBMCRYPT since it was installed. In the latter case, you
*** may want to edit the libmcrypt-config script: no
configure: error: *** libmcrypt was not found
方法是：ln -s /usr/local/bin/libmcrypt_config /usr/bin/libmcrypt_config
export LD_LIBRARY_PATH=/usr/local/lib: LD_LIBRARY_PATH