libdrizzle Developer Documentation

visibility.h
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1 /*
2  * Drizzle Client & Protocol Library
3  *
4  * Copyright (C) 2008 Eric Day (eday@oddments.org)
5  * All rights reserved.
6  *
7  * Use and distribution licensed under the BSD license. See
8  * the COPYING file in this directory for full text.
9  *
10  * Implementation drawn from visibility.texi in gnulib.
11  */
12 
18 #ifndef __DRIZZLE_VISIBILITY_H
19 #define __DRIZZLE_VISIBILITY_H
20 
29 #if defined(BUILDING_LIBDRIZZLE)
30 # if defined(HAVE_VISIBILITY)
31 # define DRIZZLE_API __attribute__ ((visibility("default")))
32 # define DRIZZLE_LOCAL __attribute__ ((visibility("hidden")))
33 # elif defined (__SUNPRO_C) && (__SUNPRO_C >= 0x550)
34 # define DRIZZLE_API __global
35 # define DRIZZLE_API __hidden
36 # elif defined(_MSC_VER)
37 # define DRIZZLE_API extern __declspec(dllexport)
38 # define DRIZZLE_LOCAL
39 # endif /* defined(HAVE_VISIBILITY) */
40 #else /* defined(BUILDING_LIBDRIZZLE) */
41 # if defined(_MSC_VER)
42 # define DRIZZLE_API extern __declspec(dllimport)
43 # define DRIZZLE_LOCAL
44 # else
45 # define DRIZZLE_API
46 # define DRIZZLE_LOCAL
47 # endif /* defined(_MSC_VER) */
48 #endif /* defined(BUILDING_LIBDRIZZLE) */
49 
50 #endif /* __DRIZZLE_VISIBILITY_H */