AC_CHECK_PROG([PERL],[perl],[perl],[AC_MSG_ERROR([*** perl not found])])
# Checks for libraries.
AC_CHECK_LIB([crypto], [ENGINE_new], [], [AC_MSG_ERROR([*** libcrypto not found])])
AC_CHECK_PROG([PERL],[perl],[perl],[AC_MSG_ERROR([*** perl not found])])
# Checks for libraries.
AC_CHECK_LIB([crypto], [ENGINE_new], [], [AC_MSG_ERROR([*** libcrypto not found])])