c-pragma.h revision 117395 
1/* Pragma related interfaces.
2   Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002
3   Free Software Foundation, Inc.
4
5This file is part of GCC.
6
7GCC is free software; you can redistribute it and/or modify it under
8the terms of the GNU General Public License as published by the Free
9Software Foundation; either version 2, or (at your option) any later
10version.
11
12GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13WARRANTY; without even the implied warranty of MERCHANTABILITY or
14FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15for more details.
16
17You should have received a copy of the GNU General Public License
18along with GCC; see the file COPYING.  If not, write to the Free
19Software Foundation, 59 Temple Place - Suite 330, Boston, MA
2002111-1307, USA.  */
21
22#ifndef GCC_C_PRAGMA_H
23#define GCC_C_PRAGMA_H
24
25/* Cause the `yydebug' variable to be defined.  */
26#define YYDEBUG 1
27extern int yydebug;
28
29struct cpp_reader;
30extern struct cpp_reader* parse_in;
31
32#ifdef HANDLE_SYSV_PRAGMA
33#if ((defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_WEAK_ALIAS)) \
34     || defined (ASM_WEAKEN_DECL))
35#define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK
36#endif
37
38/* We always support #pragma pack for SYSV pragmas.  */
39#ifndef HANDLE_PRAGMA_PACK
40#define HANDLE_PRAGMA_PACK 1
41#endif
42#endif /* HANDLE_SYSV_PRAGMA */
43
44
45#ifdef HANDLE_PRAGMA_PACK_PUSH_POP
46/* If we are supporting #pragma pack(push... then we automatically
47   support #pragma pack(<n>)  */
48#define HANDLE_PRAGMA_PACK 1
49#endif /* HANDLE_PRAGMA_PACK_PUSH_POP */
50
51extern void init_pragma PARAMS ((void));
52
53/* Duplicate prototypes for the register_pragma stuff and the typedef for
54   cpp_reader, to avoid dragging cpplib.h in almost everywhere...  */
55#ifndef GCC_CPPLIB_H
56typedef struct cpp_reader cpp_reader;
57
58extern void cpp_register_pragma PARAMS ((cpp_reader *,
59					 const char *, const char *,
60					 void (*) PARAMS ((cpp_reader *))));
61#endif
62
63extern void maybe_apply_pragma_weak PARAMS ((tree));
64extern tree maybe_apply_renaming_pragma PARAMS ((tree, tree));
65extern void add_to_renaming_pragma_list PARAMS ((tree, tree));
66
67extern int c_lex PARAMS ((tree *));
68
69#endif /* GCC_C_PRAGMA_H */
70