Bug 44276 – MPlayer: configure fails to identify which optimizations to use for my G3 CPU

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Simon Strandman 2004-03-10 11:55:39 UTC]

Configure fails to identify which flags to use for my PowerPC 750FX CPU (G3) and therefore does not set any optimizations for it to the CFLAGS.

Detected operating system: Linux
Detected host architecture: ppc
Checking for gcc version ... 3.3.3, ok
Checking for CPU type ... 750FX
Checking for GCC & CPU optimization abilities ... none

Reproducible: Always
Steps to Reproduce:
1. Install gentoo on a G3 macintosh with a 750FX CPU
2. Emerge mplayer

Actual Results:  
It compiles but without any CPU optimizations. 

Expected Results:  
It should have compiled with CPU optimizations :) 

Portage 2.0.50-r1 (default-ppc-2004.0, gcc-3.3.3, glibc-2.3.2-r9, 2.6.3-benh2) 
================================================================= 
System uname: 2.6.3-benh2 ppc 750FX 
Gentoo Base System version 1.4.3.13 
Autoconf: sys-devel/autoconf-2.58-r1 
Automake: sys-devel/automake-1.8.2 
ACCEPT_KEYWORDS="ppc" 
AUTOCLEAN="yes" 
CFLAGS="-O3 -pipe -mcpu=750 -mtune=750 -mpowerpc-gfxopt -fsigned-char 
-falign-functions=4 -fomit-frame-pointer -fforce-addr -frerun-loop-opt 
-fprefetch-loop-arrays -funroll-loops" 
CHOST="powerpc-unknown-linux-gnu" 
COMPILER="gcc3" 
CONFIG_PROTECT="/etc /usr/X11R6/lib/X11/xkb /usr/kde/2/share/config /usr/kde/3/share/config /usr/lib/mozilla/defaults/pref /usr/share/config /var/lib/pbbuttonsd /var/qmail/control" 
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" 
CXXFLAGS="-O3 -pipe -mcpu=750 -mtune=750 -mpowerpc-gfxopt -fsigned-char 
-falign-functions=4 -fomit-frame-pointer -fforce-addr -frerun-loop-opt 
-fprefetch-loop-arrays -funroll-loops" 
DISTDIR="/usr/portage/distfiles" 
FEATURES="ccache" 
GENTOO_MIRRORS="http://gentoo.oregonstate.edu 
http://www.ibiblio.org/pub/Linux/distributions/gentoo" 
MAKEOPTS="-j2" 
PKGDIR="/usr/portage/packages" 
PORTAGE_TMPDIR="/var/tmp" 
PORTDIR="/usr/portage" 
PORTDIR_OVERLAY="" 
SYNC="rsync://rsync.gentoo.org/gentoo-portage" 
USE="X aalib alsa apm berkdb cdr dga dvd esd fbconv foomaticdb gdbm gif gnome 
gphoto2 gpm gtk gtk2 imlib jpeg libwww linguas_sv mad mikmod mitshm mng mostif 
motif mozilla mpeg ncurses nls nptl offensive oggvorbis opengl oss pam pcmcia 
perl png pnp ppc python quicktime readline samba sdl slang ssl tcltk tcpd tiff 
truetype unicode usb video_cards_radeon xine xml2 xmms xv xvid"

[Comment 1 Simon Strandman 2004-03-10 12:04:14 UTC]

Created attachment 27167 [details, diff]
This patch fixes the problem.

This small patch makes configure set the correct optimizations when a G3 750FX
CPU is detected.

[Comment 2 Luca Barbato 2004-04-03 15:23:10 UTC]

looks nice, btw which compiler version are you using with such heavy cflags?

[Comment 3 Simon Strandman 2004-04-13 10:59:04 UTC]

I'm using gcc 3.3.3 20040217, from gcc-3.3.3.ebuild. I doesent have ppc in it's keywords but it's working just fine even with those optimizations.

[Comment 4 Luca Barbato 2004-04-13 19:13:30 UTC]

seems I forgot to close the bug, it should be fixed now