Macports fait des caprices

[bfvww2]

Salut à tous!

Voila, je viens vous voir car j'ai de petits soucis. J'ai voulu installer macports (avec comme interface visuelle porticus) pour pouvoir facilement installer certaines librairies et programmes (comme ffmpeg etc).

[ Question subsidiaire: comment faire pour installer/désinstaller des librairies etc sans macports? Sous ubuntu on utilise apt ou dpkg, rpm sous d'autres distrib mais sous mac?? Y a t il un gestionnaire de paquets par défaut autre que ports? ]

Cependant, après avoir désinstallé depuis Porticus des paquets dont je n'avais plus besoin, j'ai des soucis...

Voilà ce que j'obtiens comme messages d'erreur:

Maj paquets périmés, port -v upgrade outdated:

Port command started with PID 1456
Warning: Skipping upgrade since ncursesw 5.7_0 >= ncursesw 5.7_0, even though installed variants "" do not match "+darwin_10". Use 'upgrade --enforce-variants' to switch to the requested variants.
Warning: Skipping upgrade since ncurses 5.7_0 >= ncurses 5.7_0, even though installed variants "" do not match "+darwin_10". Use 'upgrade --enforce-variants' to switch to the requested variants.
Computing dependencies for xorg-libX11.
Building xorg-libX11
Making all in include
make[1]: Nothing to be done for `all'.
Making all in modules
Making all in im
Making all in ximcp
make[3]: Nothing to be done for `all'.
make[3]: Nothing to be done for `all-am'.
Making all in lc
Making all in Utf8
make[3]: Nothing to be done for `all'.
Making all in def
make[3]: Nothing to be done for `all'.
Making all in gen
make[3]: Nothing to be done for `all'.
Making all in xlocale
make[3]: Nothing to be done for `all'.
make[3]: Nothing to be done for `all-am'.
Making all in om
Making all in generic
make[3]: Nothing to be done for `all'.
make[3]: Nothing to be done for `all-am'.
make[2]: Nothing to be done for `all-am'.
Making all in src
cd util && /usr/bin/make
make[2]: Nothing to be done for `all'.
/usr/bin/make  all-recursive
Making all in util
make[3]: Nothing to be done for `all'.
Making all in xcms
make[3]: Nothing to be done for `all'.
Making all in xlibi18n
make[3]: Nothing to be done for `all'.
Making all in xkb
make[3]: Nothing to be done for `all'.
cd util && /usr/bin/make
make[4]: Nothing to be done for `all'.
  CCLD   libX11.la
ld: warning: in /opt/local/lib/libXau.dylib, file is not of required architecture
Undefined symbols:
  "_XauGetBestAuthByAddr", referenced from:
      __X11TransConnectDisplay in ConnDis.o
  "_XauDisposeAuth", referenced from:
      __X11TransConnectDisplay in ConnDis.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[3]: *** [libX11.la] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all] Error 2
make: *** [all-recursive] Error 1
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_xorg-libX11/work/libX11-1.3" && /usr/bin/make -j2 all " returned error 2
Command output: make[3]: Nothing to be done for `all'.
make[3]: Nothing to be done for `all-am'.
make[2]: Nothing to be done for `all-am'.
Making all in src
cd util && /usr/bin/make
make[2]: Nothing to be done for `all'.
/usr/bin/make  all-recursive
Making all in util
make[3]: Nothing to be done for `all'.
Making all in xcms
make[3]: Nothing to be done for `all'.
Making all in xlibi18n
make[3]: Nothing to be done for `all'.
Making all in xkb
make[3]: Nothing to be done for `all'.
cd util && /usr/bin/make
make[4]: Nothing to be done for `all'.
  CCLD   libX11.la
ld: warning: in /opt/local/lib/libXau.dylib, file is not of required architecture
Undefined symbols:
  "_XauGetBestAuthByAddr", referenced from:
      __X11TransConnectDisplay in ConnDis.o
  "_XauDisposeAuth", referenced from:
      __X11TransConnectDisplay in ConnDis.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[3]: *** [libX11.la] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all] Error 2
make: *** [all-recursive] Error 1
Warning: the following items did not execute (for xorg-libX11): org.macports.destroot org.macports.build
Error: Unable to upgrade port: 1
Executing: /opt/local/bin/port -v upgrade outdated

Que faire pour réparer tout ça?

merci d'avance à vous pour votre aide!