[gentoo-user-fr] conseil pour CFLAGS

Bonsoir,

J'aurais besoin de conseils pour optimiser mes compilations, en
particulier le CFLAGS.
En effet, j'ai fait pas mal de config différentes, mais je ne suis pas =
du
tout sûr de moi, et comme mplayer ne tourne toujours pas, c'est bien qu=
e
j'ai quelque chose qui coince.

$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 11
model name : Intel(R) Celeron(TM) CPU 1300MHz
stepping : 1
cpu MHz : 1303.397
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmo=
v pat pse36 mmx fxsr sse
bogomips : 2580.48

pour l'instant, j'ai :
CFLAGS="-march=pentium3 -O3 -pipe -fomit-frame-pointer -mfpmath=sse=
-msse -mmmx"

En plus, j'avais jusqu'à maintenant 3dnow dans le USE, que je viens
d'enlever parce que je pense qu'il ne le faut pas.

J'ai une carte nvidia, et pour mplayer, j'ai donc :
# equery uses mplayer
[ Colour Code : set unset ]
[ Legend : (U) Col 1 - Current USE flags ]
[ : (I) Col 2 - Installed With USE flags ]

U I [ Found these USE variables in : media-video/mplayer-1.0_pre5-r4 ]
- - 3dfx : Adds support for 3dfx video cards to XFree86. See: vood=
oo3
- + 3dnow : Adds support for 3dnow multimedia processor instruction=
s
- - 3dnowex : Enables 3dnow extensions in mplayer
- - aalib : Adds support for media-libs/aalib (ASCII-Graphics Libra=
ry)
+ + alsa : Adds support for media-libs/alsa-lib (Advanced Linux So=
und Architecture)
- - altivec : Adds support for optimizations for G4 and G5/ppc970 pro=
cessors
- - arts : Adds support for aRts: the KDE sound daemon
- - bidi : Enables bidirectional language support
- - debug : Tells configure and the makefiles to build for debuggin=
g. Effects vary across packages, but generally it will at least add -g to=
CFLAGS. Remember to set FEATURES=nostrip too
+ + divx4linux : Adds support for divx.com's DivX(tm) mpeg4 libary
- - doc : Adds extra documentation (API, Javadoc, etc)
- - dvb : Adds support for DVB (Digital Video Broadcasting)
- - cdparanoia : Enables cdparanoia support
- - directfb : Adds support for DirectFB layer (library for FB devices=
)
+ + dvd : Adds support for DVDs
+ - dvdread : Enables usage of Ogle's libdvdread rather than mpdvdkit=
for DVD playback
- - edl : Enables usage of Edit Decision Lists
+ + encode : Adds support for MEncoder or LaME encoder, wherever app=
licable
+ + esd : Adds support for media-sound/esound (Enlightened Sound =
Daemon)
+ - fbcon : Adds framebuffer support for the console, via the kerne=
l
+ + gif : Adds GIF image support
- - ggi : Adds support for media-libs/libggi (non-X video api/dri=
vers)
+ + gtk : Adds support for x11-libs/gtk+ (The GIMP Toolkit)
- - i8x0 : Enables support for the i8x0 xvmc video driver
- - ipv6 : Adds support for IP version 6
- - jack : Adds support for the JACK Audio Connection Kit
+ - joystick : Add support for joysticks in all packages
+ + jpeg : Adds JPEG image support
- - libcaca : Enables libcaca support, colored ASCII-art graphics
- - lirc : Adds support for lirc (Linux's Infra-Red Remote Control=
)
- - live : Enables live.com streaming media support
- - lzo : Enables support for lzo compression
+ + mad : Adds support for mad (high-quality mp3 decoder library =
and cli frontend)
- - matroska : Use external libmatroska, rather then bundled version
- - matrox : Adds Matrox MGA support to mplayer
+ + mpeg : Adds libmpeg3 support to various packages.
- - mmx : Adds support for optimizations for Pentium MMX and Athl=
on class processors
- - mmx2 : enables mmx2 support
- - mythtv : Enables mythtv support in mplayer
- - nas : Adds support for network audio sound
+ - network : Enables network streaming support
+ + nls : unknown
+ - nvidia : Enables support for the nvidia xvmc video driver
+ + oggvorbis : Adds support for the OggVorbis audio encoding
+ + opengl : Adds support for OpenGL
+ + oss : Adds support for OSS (Open Sound System)
+ + png : Adds support for libpng (PNG images)
+ - real : Adds real video support to real through win32codecs
+ - rtc : Enables usage of the linux real time clock. The altern=
ative is software emulation of rtc.
+ + samba : Adds support for SAMBA
+ + sdl : Adds support for Simple Direct Layer (media library)
+ + sse : fast floating point optimization for PentiumIII+ class =
chips
+ + svga : Adds support for SVGAlib (graphics library)
- - tga : Enables tga output support
- - theora : Adds support for the Theora Video Compression Codec
+ + truetype : Adds support for FreeType and/or FreeType2 fonts
+ - v4l : Enables video4linux support
+ - v4l2 : Enables video4linux2 support
+ + X : Adds support for X11
- - xanim : Enables support for xanim based codecs
+ + xinerama : Add support for the xinerama X11 extension, which allow=
s you to stretch your display across multiple monitors
+ + xmms : Check/Support for XMMS (X MultiMedia System) player.
+ + xv : Adds in optional support for the Xvideo extension (an X=
API for video playback)
+ + xvid : Adds support for xvid.org's open-source mpeg-4 codec
+ - xvmc : Enables X-Video Motion Compensation support
- - debug : Tells configure and the makefiles to build for debuggin=
g. Effects vary across packages, but generally it will at least add -g to=
CFLAGS. Remember to set FEATURES=nostrip too

Mais, dès que je tente de le recompiler, j'ai un problème à cause d=
e
real (que j'aimerais bien avoir) :
* Real libs not found! Install win32codecs
* And ensure that real USE flag is enabled!

pourtant :
# qpkg -i -I win32codecs
media-libs/win32codecs-20040916-r1 *
Win32 binary codecs for video and audio playback support [ http:/=
/www.mplayerhq.hu/ ]

Donc, vu tout ça, je voudrais bien mettre tout mon système d'aplomb,
quitte à en recompiler un max, mais pour ça, faut que cette fois je s=
ois
un peu plus sûr de l'optimisation.

Merci grandement, d'avance.

--
Christophe PEREZ

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