Re: GCC3 and Solaris

Jerry James <james(a)xemacs.org&gt; writes: > Vin Shelton <acs(a)xemacs.org&gt; wrote: >> Frank Jensen <Frank.Jensen(a)hugin.com&gt; writes: > > [snip] > >> IIRC, this option is no longer needed. We fixed the aliasing problems >> some time ago in the 21.4 code base. > > Errrrr.... Did we? There are still several aliasing problems in > 21.5. There could still be lingering problems, but I think we had to fix all the aliasing problems when we moved from gcc-2.95. I don't believe there are any aliasing problems in the 21.4 code base and my proof (admittedly somewhat lame) is that I build without the -fno-strict-aliasing flag. (What makes this extremely lame, is that I don't use gcc builds very often.) >> Nope. Jerry put the ability to check compiler version in awhile ago. >> My build script specifies a compiler of CC=gcc; I wonder if that makes a >> difference? > > Who, moi? I contributed the checker for icc and icpc last April, but > the general framework was put together by Valdis Kletnieks, was it not? Sorry Valdis. In my 1-deep mental stack, the last person to touch something must have invented it (or at least own it). :-) > In any case, the info docs for gcc 3.4 say that the -V flag is to run a > specific version of gcc. To get the version, you're supposed to use > --version. In fact, that's what configure.in *is* using for gcc. It > looks like the logic starting at the line that says: > > AC_MSG_CHECKING(for compiler version information) > > must be slightly awry for Frank's case. The test: > > if test "$GCC" = "yes"; then > > must be failing for Frank, dropping him into the machine-specific code, > which results in this code being executed: > > *-*-solaris*) > compiler_version=`$XEMACS_CC -V 2>&1 | head -1` Actually, I think you're looking at 21.5 sources, Jerry. configure on 21.4 does not use XEMACS_CC and looks like this: line 16122: *-*-solaris*) ccvers=`$CC -V 2>&1 | head -1` if test ! -z "$ccvers" ; then echo " Compiler version: $ccvers" fi ;; I just checked, and, on one of the 5.8 boxes, if I run configure with no arguments, and do not pass CC=gcc in the enviroment, here is what I end up with in Installation: Compiler version: gcc (GCC) 3.4.3 Frank, is your gcc named something other than "gcc" or something that would match the shell pattern "gcc*"?