gcc/c-pragma.h

   1 /* Pragma related interfaces.
   2    Copyright (C) 1995, 1998, 1999, 2000, 2001, 2002, 2003
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, 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
  27 extern int yydebug;
  28
  29 struct cpp_reader;
  30 extern 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
  51 extern void init_pragma PARAMS ((void));
  52
  53 /* Front-end wrapper for pragma registration to avoid dragging
  54    cpplib.h in almost everywhere.  */
  55 extern void c_register_pragma
  56         PARAMS ((const char *, const char *,
  57                  void (*) PARAMS ((struct cpp_reader *))));
  58 extern void maybe_apply_pragma_weak PARAMS ((tree));
  59 extern tree maybe_apply_renaming_pragma PARAMS ((tree, tree));
  60 extern void add_to_renaming_pragma_list PARAMS ((tree, tree));
  61
  62 extern int c_lex PARAMS ((tree *));
  63
  64 #endif /* GCC_C_PRAGMA_H */