Log Message:
Pullup ticket #3856 - requested by bsiegert
audio/libaudiofile: build fix

Revisions pulled up:
- audio/libaudiofile/hacks.mk                                   1.1

---
   Module Name:    pkgsrc
   Committed By:   bsiegert
   Date:           Mon Jul  9 16:42:37 UTC 2012

   Added Files:
           pkgsrc/audio/libaudiofile: hacks.mk

   Log Message:
   The build system uses -fvisibility=hidden and -fvisibility-inlines-hidden
   without checking if they are supported. Disable them via BUILDLINK_TRANSFORM
   for MirBSD. Unbreaks the build.