I got this message when trying installation CentOS Web Panel
configure: error: mcrypt.h not found. Please reinstall libmcrypt.
make: *** No targets specified and no makefile found. Stop.
make: *** No rule to make target `install'. Stop.
cp: cannot create regular file ‘/usr/local/php/php.ini’: No such file or directory
Compiler requires 512 MB RAM + SWAP
Installation FAILED at php