1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
# The MIT License
#
# Copyright (C) 2018 Alexander Saprykin <saprykin.spb@gmail.com>
#
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# 'Software'), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
function (plibsys_detect_visibility cflags ldflags)
if (WIN32 OR CYGWIN OR MSYS)
set (${cflags} "" PARENT_SCOPE)
set (${ldflags} "" PARENT_SCOPE)
return()
endif()
# Check GCC
check_c_source_compiles ("int main () {
#if (__GNUC__ >= 4) && !defined(_CRAYC) && \\\\
!defined(__sun) && !defined(sun) && \\\\
!defined(__hpux) && !defined(hpux) && \\\\
!defined(__sgi) && !defined(sgi) && \\\\
!defined(__osf__) && !defined(__osf) && \\\\
!defined(__OS2__) \\\\
!defined(_AIX) && !defined(__CYGWIN__) && !defined(__MSYS__)
return 0;
#else
stop_compile_here
#endif
}"
PLIBSYS_HAS_GCC_VISIBILITY
)
if (PLIBSYS_HAS_GCC_VISIBILITY)
set (${cflags} "-fvisibility=hidden" PARENT_SCOPE)
set (${ldflags} "" PARENT_SCOPE)
return()
endif()
# Check Sun Studio
check_c_source_compiles ("int main () {
#if (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x550)) || \\\\
(defined(__SUNPRO_CC) && (__SUNPRO_CC >= 0x5110))
return 0;
#else
stop_compile_here
#endif
}"
PLIBSYS_HAS_SUN_VISIBILITY
)
if (PLIBSYS_HAS_SUN_VISIBILITY)
set (${cflags} "" PARENT_SCOPE)
set (${ldlags} "-xldscope=__hidden" PARENT_SCOPE)
return()
endif()
# Check IBM XL C
check_c_source_compiles ("int main () {
#if (defined(__xlC__) && (__xlC__ >= 0x0D01))
return 0;
#else
stop_compile_here
#endif
}"
PLIBSYS_HAS_XLC_VISIBILITY
)
if (PLIBSYS_HAS_XLC_VISIBILITY)
set (${cflags} "-qvisibility=hidden" PARENT_SCOPE)
set (${ldflags} "" PARENT_SCOPE)
return()
endif()
# Check HP C/aC++
check_c_source_compiles ("int main () {
#if (defined(__HP_cc) && (__HP_cc >= 0x061500)) || \\\\
(defined(__HP_aCC) && (__HP_aCC >= 0x061500))
return 0;
#else
stop_compile_here
#endif
}"
PLIBSYS_HAS_HP_VISIBILITY
)
if (PLIBSYS_HAS_HP_VISIBILITY)
set (${cflags} "-Bhidden" PARENT_SCOPE)
set (${ldflags} "" PARENT_SCOPE)
return()
endif()
# Check Clang
check_c_source_compiles ("int main () {
#if defined(__has_attribute) && __has_attribute(visibility)
return 0;
#else
stop_compile_here
#endif
}"
PLIBSYS_HAS_CLANG_VISIBILITY
)
if (PLIBSYS_HAS_CLANG_VISIBILITY)
set (${cflags} "-fvisibility=hidden" PARENT_SCOPE)
set (${ldflags} "" PARENT_SCOPE)
return()
endif()
# Empty result
set (${cflags} "" PARENT_SCOPE)
set (${ldflags} "" PARENT_SCOPE)
endfunction (plibsys_detect_visibility)
|
