Make libpq++ safe again for older C++ compilers. Do 'using namespace std'

Tom Lane <tgl@sss.pgh.pa.us>

Commit: 95d4821b1cc56f834b1d901bb9f0bdaf43ff8cc0
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2001-09-30T22:30:37Z
Releases: 7.2.1
Make libpq++ safe again for older C++ compilers.  Do 'using namespace std'
only if configure found it was safe to do so; do not assume const_cast
is available.

Files