Remove use of obsolescent Autoconf macros

От:

Peter Eisentraut <peter_e@gmx.net>

Дата:

19 ноября 2013 г. в 02:52:45

According to the Autoconf documentation, the following macros are
obsolescent because no reasonably current system has the defect that
they are testing for.

- AC_C_CONST
- AC_C_STRINGIZE
- AC_C_VOLATILE
- AC_FUNC_MEMCMP

Therefore, I propose to remove their use, with the attached patch.