On Sun, 3 Oct 2010 12:11:31 +0100 Simon Wilkinson <[email protected]> wrote:
> AIX is the only platform on which we use a different C compiler binary > to build against pthreads - xlc_r, rather than cc. > > Is there any reason that we couldn't just use xlc_r to build both LWP > and pthread targets? I wouldn't be the one to know about this, but... I thought the only difference between xlc_r and xlc is that certain flags have different defaults. While I assume just using xlc_r everywhere would work (unless LWP's specialness somehow screws something up), I would think that using xlc everywhere and altering MT_CFLAGS/MT_LIBS (or the equivalent in the new system, if you're changing those) would be the way to go. I have no idea how consistent those flags are across AIX versions, though. Doing this may be against common AIX practices and user expectations, too, since (for example) AIX compiler tools have a configuration file that provide default flags and libs and such depending on whether you run xlc, xlc_r, xlc128, etc. It's possible using only one compiler may be confusing when the user expects some locally-configured defaults to be used for multithreaded stuff, but we just use 'xlc' instead of 'xlc_r' so it doesn't happen. I don't know if that really affects anyone, though... and I'm assuming it would be easy to just specify CC=xlc_r anyway. -- Andrew Deason [email protected] _______________________________________________ OpenAFS-devel mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-devel
