Hello,
after reading the article "GNU Compiler Collection: Performance under Linux" in the actual c't magazine http://www.heise.de/ct/
I decided to recompile my 32bit Fedora firefox 1.0.1 with better CFLAGS like in the big GCC test read. And -Os was very slow there...
They have better performance results with FC3 GCC 3.4.3 and e.g LAME with the SSE extensions on 32bit. About 3 min. faster LAME encoding 17 wavs with SSE activated....
So I have installed all needed i386 pkgs (i think) from X11, glibc to required gnome things on my up2date x86_64 FC4 rawhide. But I get always errors compiling firefox or building the rpm about the ld complaining an uncompatible 64bit obj or not finding the X11 extensions.
Why is the GCC 3.4.3-20 not using the 32bit libs, I see he use the 64bit gnome ones while compiling, when I give him -m32 in mozconfig and or tried in the firefox spec file:
[...]
ac_add_options --enable-optimize="-O2 -m32 -msse2 -mtune=athlon64 -march=athlon-xp"
...
ac_add_options --x-libraries=/usr/X11R6/lib
ac_add_options --libdir=/usr/lib
ac_add_options --x-includes=/usr/X11R6/include
What is here wrong? Or which switch is needed for GCC building and searching 32bit libs/apps? Why is it searching in ../lib64?
Greetings, Marcus
