implement configure test for whether ndbm.h prototypes are broken -------------------- ChangeLog entries follow: -------------------- ChangeLog addition: 2010-02-06 Ben Wing <ben@xemacs.org> * configure: * configure.ac (AC_LANG): * configure.ac (TAB): Add AC_LANG(C++) defs in a way very similar to AC_LANG(C), inserting our own flags, compiler, etc. When using g++, if we found ndbm, check whether we can compile a file using g++ and ndbm.h, calling some DBM routines. Currently, this fails because the prototypes in ndbm.h are incomplete, omitting the arguments, which doesn't work with g++. When ndbm.h is bad, we don't include it and instead provide our own prototypes; otherwise, we define TRUST_NDBM_H_PROTOTYPES, which signals to use the ones in ndbm.h. src/ChangeLog addition: 2010-02-06 Ben Wing <ben@xemacs.org> * config.h.in: Add undef for TRUST_NDBM_H_PROTOTYPES. * database.c: * database.c (struct): Use TRUST_NDBM_H_PROTOTYPES to determine whether to include ndbm.h or to specify our own prototypes, in place of CYGWIN_HEADERS (or more generally, any random list of systems). * depend: Regenerate.

--- a/src/config.h.in	Fri Feb 05 11:53:57 2010 -0600
+++ b/src/config.h.in	Sat Feb 06 03:26:34 2010 -0600
@@ -1,6 +1,6 @@
 /* XEmacs site configuration template file.  -*- C -*-
    Copyright (C) 1986, 1991-1994, 1998, 1999 Free Software Foundation, Inc.
-   Copyright (C) 2000, 2001, 2002, 2004, 2005 Ben Wing.
+   Copyright (C) 2000, 2001, 2002, 2004, 2005, 2010 Ben Wing.
 
 This file is part of XEmacs.
 
@@ -534,6 +534,8 @@
 #undef HAVE_DBM
 /* Full #include file path for GDBM's or platforms ndbm.h */
 #undef NDBM_H_FILE
+/* Can we trust the prototypes in ndbm.h?  If not, we need to declare our own */
+#undef TRUST_NDBM_H_PROTOTYPES
 
 /* Define to 1 if the system has the type `u_int8_t'. */
 #undef HAVE_U_INT8_T