Bugzilla Bug 176155

hehe this one is very nice : 

Making all in x11
make[5]: Entering directory
`/usr/var/tmp/portage/app-emulation/vice-1.21/work/vice-1.21/src/arch/unix/x11'
Makefile:377: *** multiple target patterns.  Stop.
make[5]: Leaving directory
`/usr/var/tmp/portage/app-emulation/vice-1.21/work/vice-1.21/src/arch/unix/x11'


having a closer look at it : 
src/arch/unix/x11/Makefile:377

libx11ui.a: $(libx11ui_a_OBJECTS) $(libx11ui_a_DEPENDENCIES)


and then : 

libx11ui_a_DEPENDENCIES =  vidmode.o dga1.o dga2.o xrandr.o openGL_sync.o
rsync://rsync.europe.gentoo.org/gentoo-portage

in Makefile.am now : 
libx11ui_a_DEPENDENCIES = @FULLSCREEN_DRIVERS@ @SYNC@

hmm I think I know the cause...

in configure.in : 

SYNC="openGL_sync.o $SYNC";

hey, it takes the SYNC variable from environment !


SYNC is defined only here, so changing that line to : 
SYNC="openGL_sync.o";
allowed me to compile

thanks...