[gentoo-user-fr] probleme emerge rsync

Bonjour.

Depuis que j'ai remis à jour un vieux PC (avec plus d'un an entre deux
emerge world), j'arrive plus à recompiler rsync.

A chaque tentative, l'emerge se plante avec ce message :
<message>
i686-pc-linux-gnu-gcc -O2 -march=athlon-xp -mfpmath=sse -msse
-fomit-frame-pointer -pipe -DHAVE_CONFIG_H -Wall -W -o rsync rsync.o
generator.o receiver.o cleanup.o sender.o exclude.o util.o main.o
checksum.o match.o syscall.o log.o backup.o options.o flist.o io.o
compat.o hlink.o token.o uidlist.o socket.o fileio.o batch.o
clientname.o sysacls.o acls.o progress.o pipe.o params.o loadparm.o
clientserver.o access.o connection.o authenticate.o lib/wildmatch.o
lib/compat.o lib/snprintf.o lib/mdfour.o lib/permstring.o
zlib/deflate.o zlib/infblock.o zlib/infcodes.o zlib/inffast.o
zlib/inflate.o zlib/inftrees.o zlib/infutil.o zlib/trees.o zlib/zutil.o
zlib/adler32.o -lacl -lpopt -lresolv
rsync.o: In function `crLaunchThread':
rsync.c:(.text+0x3f): undefined reference to `pthread_create'
generator.o: In function `crLaunchThread':
generator.c:(.text+0x3f): undefined reference to `pthread_create'
receiver.o: In function `crLaunchThread':
receiver.c:(.text+0x3f): undefined reference to `pthread_create'
cleanup.o: In function `crLaunchThread':
cleanup.c:(.text+0x3f): undefined reference to `pthread_create'
sender.o: In function `crLaunchThread':
sender.c:(.text+0x3f): undefined reference to `pthread_create'
exclude.o:exclude.c:(.text+0x3f): more undefined references to
`pthread_create' follow
collect2: ld returned 1 exit status
make: *** [rsync] Error 1
</message>

Quelqu'un sait d'où ça vient?

Comment le corriger ?
Notez que j'ai bien la libpthread :
<message>
TuxFamily portage # ls -hl /lib/libpthread*
-rwxr-xr-x 1 root root 156K Jan 22 17:24 /lib/libpthread-2.3.5.so
lrwxrwxrwx 1 root root 19 Jan 22 17:24 /lib/libpthread.so.0 ->
libpthread-2.3.5.so
</message>

Merci.

Cordialement,

--
Laurent ARTAUD (laurent.artaud@free.fr)
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