/[libtool]/libtool/pdemo/foo.h
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revision 1.1 by rboehne, Tue Apr 3 21:47:48 2001 UTC revision 1.2 by rboehne, Wed Jun 6 14:53:29 2001 UTC
# Line 0  Line 1 
1    /* foo.h -- interface to the libfoo library
2       Copyright (C) 1996-1999 Free Software Foundation, Inc.
3       Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
4       This file is part of GNU Libtool.
5    
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 2 of the License, or
9    (at your option) any later version.
10    
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15    
16    You should have received a copy of the GNU General Public License
17    along with this program; if not, write to the Free Software
18    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19    USA. */
20    
21    /* Only include this header file once. */
22    #ifndef _FOO_H_
23    #define _FOO_H_ 1
24    
25    /* At some point, cygwin will stop defining __CYGWIN32__, but b19 and
26     * earlier do not define __CYGWIN__.  This snippit allows us to check
27     * for __CYGWIN32__ reliably for both old and (probable) future releases.
28     */
29    #ifdef __CYGWIN__
30    #  ifndef __CYGWIN32__
31    #    define __CYGWIN32__
32    #  endif
33    #endif
34    
35    /* __BEGIN_DECLS should be used at the beginning of your declarations,
36       so that C++ compilers don't mangle their names.  Use __END_DECLS at
37       the end of C declarations. */
38    #undef __BEGIN_DECLS
39    #undef __END_DECLS
40    #ifdef __cplusplus
41    # define __BEGIN_DECLS extern "C" {
42    # define __END_DECLS }
43    #else
44    # define __BEGIN_DECLS /* empty */
45    # define __END_DECLS /* empty */
46    #endif
47    
48    /* LTDL_PARAMS is a macro used to wrap function prototypes, so that compilers
49       that don't understand ANSI C prototypes still work, and ANSI C
50       compilers can issue warnings about type mismatches. */
51    #undef LTDL_PARAMS
52    #if defined (__STDC__) || defined (_AIX) || (defined (__mips) && defined (_SYSTYPE_SVR4)) || defined(__CYGWIN32__) || defined(__cplusplus)
53    # define LT_PARAMS(protos) protos
54    # define lt_ptr_t     void*
55    #else
56    # define LT_PARAMS(protos) ()
57    # define lt_ptr_t     char*
58    #endif
59    
60    #ifdef __CYGWIN32__
61    #  ifdef LIBFOO_DLL
62         /* need some (as yet non-existant) automake magic to tell
63          * the object whether the libfoo it will be linked with is
64          * a dll or not, ie whether LIBFOO_DLL is defined or not.
65          */
66    #    ifdef _LIBFOO_COMPILATION_
67    #      define EXTERN __declspec(dllexport)
68    #    else
69    #      define EXTERN extern __declspec(dllimport)
70    #    endif
71    #  else
72    #    define EXTERN extern
73    #  endif
74    #else
75    #  define EXTERN extern
76    #endif
77    
78    /* Silly constants that the functions return. */
79    #define HELLO_RET 0xe110
80    #define FOO_RET 0xf00
81    
82    
83    /* Declarations.  Note the wonderful use of the above macros. */
84    __BEGIN_DECLS
85    int foo LT_PARAMS((void));
86    int hello LT_PARAMS((void));
87    EXTERN int nothing;
88    __END_DECLS
89    
90    #endif /* !_FOO_H_ */

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