Updated AM_CONFIG_HEADER to AC_CONFIG_HEADER. The AM_ macro is obsolete and triggers an error in recent autotools.
set _POSIX_SOURCE for Mac OS X 10.5 (to find EAI_OVERFLOW, see issue https://github.com/italiangrid/voms/issues/2)
fix typo: AC_CONFIG_HEADER -> AC_CONFIG_HEADERS
Add a dummy function to replib so it won't be empty if $LTLIBOBJS turns out to be empty.
This happens on Mac OS X 10.8 and Mac can't handle empty libraries.
Merge branch 'italiangrid-2.x' into 2.x
Merge pull request #5 from dvandok/2.x

please include these changes