#

#

# IDENTIFICATION

# $Header: /cvsroot/pgsql/src/Makefile.global.in,v 1.67 2000/03/08 01:58:15 momjian Exp $

# $Header: /cvsroot/pgsql/src/Makefile.global.in,v 1.68 2000/03/30 05:29:20 tgl Exp $

#

# NOTES

# Essentially all Postgres make files include this file and use the

# (that is, prepend '#', don't set it to "0" or "no").

# Compile libpq++

@HAVECXX@

HAVE_Cplusplus=@HAVECXX@

# Comment out ENFORCE_ALIGNMENT if you do NOT want unaligned access to

# multi-byte types to generate a bus error.

AC_SUBST(MULTIBYTE)

dnl Check for C++ support (allow override if needed)

HAVECXX='HAVE_Cplusplus=true'

HAVECXX='true'

AC_ARG_WITH(CXX,

[ --with-CXX=compiler use specific C++ compiler

--without-CXX prevent building C++ code ],

AC_MSG_ERROR([*** You must supply an argument to the --with-CC option.])

;;

n | no)

HAVECXX='HAVE_Cplusplus=false'

HAVECXX='false'

;;

esac

CXX="$withval"

],

[ AC_PROG_CXX])

AC_SUBST(HAVECXX)

if test "$HAVECXX" = 'true' ; then

AC_LANG_CPLUSPLUS

dnl check whether "using namespace std" works on this C++ compiler

AC_MSG_CHECKING([for namespace std in C++])

AC_TRY_COMPILE([#include <stdio.h>

#include <stdlib.h>

using namespace std;

], [],

[AC_DEFINE(HAVE_NAMESPACE_STD) AC_MSG_RESULT(yes)],

[AC_MSG_RESULT(no)])

dnl check whether "#include <string>" works on this C++ compiler

AC_MSG_CHECKING([for include <string> in C++])

AC_TRY_COMPILE([#include <stdio.h>

#include <stdlib.h>

#include <string>

], [],

[AC_DEFINE(HAVE_CXX_STRING_HEADER) AC_MSG_RESULT(yes)],

[AC_MSG_RESULT(no)])

fi

dnl make sure we revert to C compiler, not C++, for subsequent tests

AC_LANG_C

#undef USE_POSIX_SIGNALS

#undef HAVE_NAMESPACE_STD

#undef HAVE_CXX_STRING_HEADER