On Mon, Jun 10, 2002 at 04:53:36PM +0100, [EMAIL PROTECTED] wrote:
> I've picked up the snapshot. There is a problem with the new code.
>
> GCCVER=`(gcc --version) 2>/dev/null | head -1`
> if [ "$GCCVER" != "" ]; then
> CC=gcc
> # then strip off whatever prefix Cygnus as well as GCC 3.1 prepends
> # the number with... Hopefully, this will work for any future prefixes
> # as well.
> GCCVER=`echo $GCCVER | sed 's/^[a-zA-Z ()]*\-//'`
> # peak single digit before and after first dot, e.g. 2.95.1 gives 29
> GCCVER=`echo $GCCVER | sed 's/\([0-9]\)\.\([0-9]\).*/\1\2/'`
> else
> CC=cc
> fi
> GCCVER=${GCCVER:-0}
>
> The problem is with
>
> GCCVER=`echo $GCCVER | sed 's/^[a-zA-Z ()]*\-//'`
>
> The \- doesn't work with gcc 3.1 which outputs
>
> gcc (GCC) 3.1.
Hmm. From "cvs log config":
revision 1.101
date: 2002/06/05 05:00:51; author: levitte; state: Exp; lines: +5 -3
Update the recognision of GCC version numbers to handle the prefix text
that GCC 3.1 adds to the --version output
Maybe the change for 1.101 (or similar fo the BRANCHes) was not sufficient.
I have CC'ed Richard Levitte.
> I can fix the regex but I like know the reasoning behind it. I tried
>
> ^[a-zA-Z ()]*\-?
>
> but this doesn't work with sed because it an extended regex and not
> supported by
> HP or GNU sed.
>
> As for detecting 64bit GCC, that looks fairly easy. GCC passes a define
> -D__LP64__
> to cpp. Otherwise it would something like
>
> int main()
> {
> if ((sizeof(long) == 8) && (sizeof(void*) == 8)) return 1; /* LP64 */
> or ((sizeof(long == 8) || (sizeof(void*) == 8)) return -1; /* error, this
> should never happen on hpux */
> or return 0;
> }
>
> would work.
__LP__64 should work for the scheme used for other platforms, so we
probably don't need to test-compile a file.
Best regards,
Lutz
--
Lutz Jaenicke [EMAIL PROTECTED]
http://www.aet.TU-Cottbus.DE/personen/jaenicke/
BTU Cottbus, Allgemeine Elektrotechnik
Universitaetsplatz 3-4, D-03044 Cottbus
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