Avoid hundreds of warnings about redefining macros now that APR has a version of the APR_ARRAY macros.
Avoid hundreds of warnings about redefining macros now that APR has a
version of the APR_ARRAY macros.

* subversion/include/svn_types.h
  (APR_ARRAY_IDX, APR_ARRAY_PUSH): undef these before defining our own
   version if they were already defined by someone else.

jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion,jmckaskill/subversion