Thu Jan 18 00:32:43 1996 Roland McGrath <roland@churchy.gnu.ai.mit.edu>

[kopensolaris-gnu/glibc.git] / errno.h

diff --git a/errno.h b/errno.h
index 5968c85..0bcbc96 100644 (file)
--- a/errno.h
+++ b/errno.h
@@ -1,34 +1,53 @@
-/* Copyright (C) 1991 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
 This file is part of the GNU C Library.
 
-The GNU C Library is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
-any later version.
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
 
 The GNU C Library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
 
-You should have received a copy of the GNU General Public License
-along with the GNU C Library; see the file COPYING.  If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the, 1992 Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
 
-/* 
+/*
  *     ANSI Standard: 4.1.3 Errors     <errno.h>
  */
 
 #ifndef        _ERRNO_H
 
+/* The includer defined __need_Emath if he wants only the definitions
+   of EDOM and ERANGE, and not everything else.  */
+#ifndef        __need_Emath
 #define        _ERRNO_H        1
 #include <features.h>
+#endif
 
-/* Get the error number constants.  */
+__BEGIN_DECLS
+
+/* Get the error number constants from the system-specific file.
+   This file will test __need_Emath and _ERRNO_H.  */
 #include <errnos.h>
+#undef __need_Emath
 
+#ifdef _ERRNO_H
 /* Declare the `errno' variable.  */
-extern VOLATILE int errno;
+extern int errno;
+
+#ifdef __USE_GNU
+/* The full and simple forms of the name with which the program was
+   invoked.  These variables are set up automatically at startup based on
+   the value of ARGV[0] (this works only if you use GNU ld).  */
+extern char *program_invocation_name, *program_invocation_short_name;
+#endif
 
+__END_DECLS
+#endif
 
-#endif /* errno.h      */
+#endif /* errno.h      */