glcore gets linked with -ldl, -lpthread for s3tc and glapi
xserver needs
DLOPEN_LIBS - to dlopen the glcore dso
LD_EXPORT_SYMBOLS_FLAG - to export symbols for glcore to use
the ld flag is added to kdrive only when GLX is enabled, the net overhead for
Xephyr is ~155KB, could be reduced with --dynamic-list.
(cherry picked from commit efb723e166)
Conflicts:
configure.ac
the ATI driver. It suffers from hw/sw synchronization problems, it
looks like, but may be good enough to work on Render acceleration
experiments. Committing it as-is so I don't lose it again.
