> Is it necessary to use the local native compiler - xlc in this case, to > compile gcc ? I have a gcc-4.2.3 installed on AIX and would now like to No. In my experience it's better to stick to an all-GCC environment. > install gcc 4.3.2. However if I compile with existing gcc then the > compiles is extremly slow and almost does not do much. It took about a > day to just finish stage-1. I tried to check for any load etc but could As someone else noted, it's not GCC's fault--it's an issue with the shell you're using (I'll bet it's not bash...). This is documented somewhere (I don't recall exactly, I think it's actually on the Apache httpd site...) Google up something like 'slow configure AIX' and you'll find it. The fix, as previously stated, is to set the CONFIG_SHELL environment variable to point to your bash install (there's almost always a link like /usr/bin/bash pointing to somewhere in /opt/freeware if you use the IBM-provided distro; otherwise it's wherever you put it). FYI this will trip you up in a number of software builds, including Apache's httpd, and some of the larger GNU packages. > "./config.h", line 435.9: 1506-213 (S) Macro name inline cannot be > redefined. [errors snipped] If you want to stick with the IBM compiler, it's time for either a source dive, or hitting up someone who really knows the IBM compiler environment (the former being both more educational, and less expensive in many ways, IMHO). Rob