In order to install GCC from sources, you need to have a compiler installed on your system (in order to build GCC). You either don't have one, or it is not in your path before /usr/ucb, so the configure script is not finding it. Thanks, Lyle -----Original Message----- From: gcc-help-owner@xxxxxxxxxxx [mailto:gcc-help-owner@xxxxxxxxxxx] On Behalf Of McGregor, Van Sent: Thursday, July 01, 2004 2:06 PM To: gcc-help@xxxxxxxxxxx Subject: Error message running configure on Sun Solaris 8 Help, Never having installed gcc on a Sun box. How do I interpret the following message? What needs to be done to configure. Thanks for your help. Van Configuring for a sparc-sun-solaris2.8 host. Created "Makefile" in /u01/gccobj using "mh-frag" /usr/ucb/cc: language optional software package not installed *** The command '/usr/ucb/cc -o conftest -g conftest.c' failed. *** You must set the environment variable CC to a working compiler.