Bug 14363

Summary:	GCC 3.2.1 compiling errors
Product:	Gentoo Linux	Reporter:	Marcel Karras <toka>
Component:	[OLD] GCC Porting	Assignee:	Martin Schlemmer (RETIRED) <azarah>
Status:	RESOLVED INVALID
Severity:	major	CC:	mgorny
Priority:	High
Version:	1.4_rc1
Hardware:	All
OS:	Linux
URL:	http://freebits.de/errors.txt
Whiteboard:
Package list:		Runtime testing required:	---

Description Marcel Karras 2003-01-22 07:34:17 UTC

I run gcc 3.2.1 r7 and installed the r8 version of 2.95.3 parallel to it in
order to be able to switch between gcc 2.9x and 3.2.x. After having done the job
I desired to switch back to gcc 3.2.x with gcc-config --use-old but the result
was a mess. You can see a compile output of a gtkmm project which worked fine
_before_ I installed the 2.9x gcc. I didn't compile any libs with the old
compiler - I just installed it i.o. to use it for one goal. Look at
http://freebits.de/errors.txt - I'm quite helpless on how to cope with the problem.

Comment 1 Marcel Karras 2003-01-22 08:05:35 UTC

bash-2.05b# emerge info
Portage 2.0.46-r9 (default-x86-1.4, gcc-3.2.1, glibc-2.3.1-r3)
=================================================================
System uname: 2.4.19-gentoo-r5 i686 AMD Athlon(tm) Processor
GENTOO_MIRRORS="http://www.ibiblio.org/pub/Linux/distributions/gentoo"
CONFIG_PROTECT="/etc /var/qmail/control /usr/share/config
/usr/kde/2/share/config /usr/kde/3/share/config
/usr/kde/3.1/share/config:/usr/kde/3/share/config:/usr/share/config"
CONFIG_PROTECT_MASK="/etc/gconf /etc/env.d"
PORTDIR="/usr/portage"
DISTDIR="/usr/portage/distfiles"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR_OVERLAY=""
USE="tetex tcltk perl x86 3dnow aalib bonobo apm arts alsa avi berkdb cdr dga
dvd esd gd crypt cups encode gdbm gif gpm gtk imlib gtk2 gtkhtml guile java jpeg
kde gnome libg++ libwww mikmod mmx mozilla mysql motif mpeg ncurses nls
oggvorbis oss slang tiff xml opengl pam pdflib png python qt qtmt quicktime
readline sdl lang spell ssl svga tcpd truetype X xml2 xmms xv zlib"
COMPILER="gcc3"
CHOST="i686-pc-linux-gnu"
CFLAGS="-O2 -mcpu=i686 -pipe"
CXXFLAGS=""
ACCEPT_KEYWORDS="x86 ~x86"
MAKEOPTS="-j2"
AUTOCLEAN="yes"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
FEATURES="sandbox ccache"

Comment 2 Martin Schlemmer (RETIRED) gentoo-dev

2003-01-22 17:50:40 UTC

I am not sure that this is the problem, but you should not use --use-old.  That
is basically a switch for portage, that if you have say 3.2.1 as default, and
then install 2.95.3, that when it runs gcc-config, it should not change the
profile if already set ....

You should rather just do:

  # gcc-config i686-pc-linux-gnu-3.2.1

Also, please check, you do not have CXXFLAGS set ....

Comment 3 Marcel Karras 2003-01-23 02:26:21 UTC

I played around with some things and have covered that Anjuta 1.0.1 was the
problem. I think that some Flags where not set correctly so that the project
didn't compile any more. It's strange that switching influences Anjuta but if
you say that that switching shouldn't be done manually...
Nevertheless the problem is solved and all works fine now.

Comment 4 Martin Schlemmer (RETIRED) gentoo-dev

2003-01-23 04:02:39 UTC

Well, if its a C++ project, you are going to run into problems if you link say
a gcc2 libs against gcc3 ones ...