abi-versions is not generated with --disable-versioning

[Andreas Jaeger]

Trying to build glibc with --disable-versioning, I got a failure
because abi-versions.h didn't exist.  We should either create a dummy
file in this case or protect the inclusion in shlib-compat.h by an
#ifdef DO_VERSIONING.

Roland, which way do you prefer?

For now I just changed the include in shlib-compat.h to:
#ifdef DO_VERSIONING
#include <abi-versions.h>	/* header generated by abi-versions.awk */
#endif

Andreas
-- 
 Andreas Jaeger
  SuSE Labs aj@suse.de
   private aj@arthur.rhein-neckar.de