Does a test already exist that checks for if the >> operator in C does arithmetic shift? Section 5.5.1 "Portability of C Functions" of the manual mentions the problem, but lists nothing about a way of determining actual behavior. Seems that it would simple enough that I thought I would ask before I dive in and write something myself. Mike Gibson _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf