轉 configure: error: *** libmcrypt was not found解決方案

安裝到mcrypt的時候出現了問題
./configure
提示出錯，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
找了相關資料，得出解決方法明明我安裝了libmcrypt 2.5.8 ，可是竟然提示沒有發現！然后在/usr/local/bin/找到了LIBMCRYPT_CONFIG ，這一步明確了是PATH變量的問題 ！
方法是ln -s   /usr/local/bin/libmcrypt_config   /usr/bin/libmcrypt_config
之后繼續進行./configure
仍然報錯：
*** Could not run libmcrypt test program, checking why…
*** The test program compiled, but did not run. This usually means
*** that the run-time linker is not finding LIBMCRYPT or finding the wrong
*** version of LIBMCRYPT. If it is not finding LIBMCRYPT, you’ll need to set your
*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point
*** to the installed location   Also, make sure you have run ldconfig if that
*** is required on your system
***
*** If you have an old version installed, it is best to remove it, although
*** you may also be able to get things to work by modifying LD_LIBRARY_PATH
***
configure: error: *** libmcrypt was not found

繼續查找，還是變量的問題
解決方法如下：運行 export LD_LIBRARY_PATH=/usr/local/lib: LD_LIBRARY_PATH
然后make ； make install
完成