gcc/c-pragma.h

   1 /* Pragma related interfaces.
   2    Copyright (C) 1995, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
   3
   4 This file is part of GCC.
   5
   6 GCC is free software; you can redistribute it and/or modify it under
   7 the terms of the GNU General Public License as published by the Free
   8 Software Foundation; either version 2, or (at your option) any later
   9 version.
  10
  11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GCC; see the file COPYING.  If not, write to the Free
  18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  19 02111-1307, USA.  */
  20
  21 #ifndef GCC_C_PRAGMA_H
  22 #define GCC_C_PRAGMA_H
  23
  24 #ifdef HANDLE_SYSV_PRAGMA
  25 /* Support #pragma weak iff ASM_WEAKEN_LABEL and ASM_OUTPUT_WEAK_ALIAS are
  26    defined.  */
  27 #if defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_WEAK_ALIAS)
  28 #define HANDLE_PRAGMA_WEAK SUPPORTS_WEAK
  29 #endif
  30
  31 /* We always support #pragma pack for SYSV pragmas.  */
  32 #ifndef HANDLE_PRAGMA_PACK
  33 #define HANDLE_PRAGMA_PACK 1
  34 #endif
  35 #endif /* HANDLE_SYSV_PRAGMA */
  36
  37
  38 #ifdef HANDLE_PRAGMA_PACK_PUSH_POP
  39 /* If we are supporting #pragma pack(push... then we automatically
  40    support #pragma pack(<n>)  */
  41 #define HANDLE_PRAGMA_PACK 1
  42 #endif /* HANDLE_PRAGMA_PACK_PUSH_POP */
  43
  44
  45 #ifdef HANDLE_PRAGMA_WEAK
  46 extern int add_weak PARAMS ((const char *, const char *));
  47 #endif /* HANDLE_PRAGMA_WEAK */
  48
  49 extern void init_pragma PARAMS ((void));
  50
  51 /* Duplicate prototypes for the register_pragma stuff and the typedef for
  52    cpp_reader, to avoid dragging cpplib.h in almost everywhere... */
  53 #ifndef GCC_CPPLIB_H
  54 typedef struct cpp_reader cpp_reader;
  55
  56 extern void cpp_register_pragma PARAMS ((cpp_reader *,
  57                                          const char *, const char *,
  58                                          void (*) PARAMS ((cpp_reader *))));
  59 extern void cpp_register_pragma_space PARAMS ((cpp_reader *, const char *));
  60 #endif
  61
  62 #endif /* GCC_C_PRAGMA_H */