“No licenses available. Contact your program supplier to add additional users. Compilation will proceed shortly.”

In AIX, the IBM c/c++ compiler xlc_r which gives the following licensing warning

“No licenses available. Contact your program supplier to add additional users. Compilation will proceed shortly.”

which considerably slows down the build process. This can be avoided by modifying /etc/vac.cfg file. Since license manager is optional, check out for "options", near the end, in DEFLT for xlc_r. Then add -qnolm option if it is not already exist, which means "no license manager".