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
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
|
if get_option('native-arch-optimization')
if host_machine.cpu_family() == 'x86' or host_machine.cpu_family() == 'x86_64'
native_header = 'immintrin.h'
elif host_machine.cpu_family() == 'arm'
native_header = 'arm_neon.h'
elif host_machine.cpu_family() == 'aarch64'
native_header = 'arm_neon.h'
elif host_machine.cpu_family() == 'ppc' or host_machine.cpu_family() == 'ppc64'
native_header = 'altivec.h'
endif
if cc.has_header(native_header) == false
error('Error, header '+native_header+' is required')
endif
config_h.set10('HAVE_'+native_header.underscorify().to_upper(), true)
endif
header_checks = [
'alloca.h',
'asm/hwcap.h',
'bsd/string.h',
'dirent.h',
'execinfo.h',
'mcheck.h',
'netinet/in.h',
'netinet/ssl.h',
'netinet/tcp.h',
'netinet/udp.h',
'net/if.h',
'stdlib.h',
'mman.h',
'sys/auxv.h',
'sys/inotify.h',
'sys/ioctl.h',
'sys/mman.h',
'sys/types.h',
'sys/socket.h',
'sys/filio.h',
'arpa/inet.h',
'sys/epoll.h',
'sys/un.h',
'sys/wait.h',
'sys/resource.h',
'sys/times.h',
'dirent.h',
'longinfo.h',
'exotic.h',
'ieeefp.h',
'node/uv.h',
'sys/timerfd.h',
'features.h',
'langinfo.h',
'locale.h',
'uv.h',
'ws2tcpip.h'
]
function_checks = [
# function name | headers that are needed | libraries to include | Defines that are needed
['alloca', ['alloca.h']],
['backtrace', ['execinfo.h']],
['backtrace_symbols', ['execinfo.h']],
['clock_gettime', ['time.h']],
['dirfd', ['dirent.h sys/types.h']],
['fchmod', ['sys/stat.h']],
['fcntl', ['fcntl.h']],
['fork', ['unistd.h']],
['fpathconf', ['unistd.h']],
['geteuid', ['unistd.h']],
['getpagesize', ['unistd.h']],
['getpwent', ['sys/types.h', 'pwd.h']],
['getuid', ['unistd.h']],
['getxattr', ['sys/types.h', 'sys/xattr.h']],
['iconv', ['iconv.h']],
['listxattr', ['sys/types.h', 'sys/xattr.h']],
['mallinfo', ['malloc.h']],
['malloc_info', ['malloc.h']],
['malloc_usable_size', ['malloc.h']],
['mkdirat', ['sys/stat.h']],
['mmap', ['sys/mman.h']],
['mtrace', ['mcheck.h']],
['prctl', ['sys/prctl.h']],
['realpath', ['stdlib.h']],
['setxattr', ['sys/types.h', 'sys/xattr.h']],
['siglongjmp', ['setjmp.h']],
['strerror_r', ['string.h']],
['gettimeofday', ['sys/time.h']],
['execvp', ['unistd.h']],
['pause', ['unistd.h']],
['isfinite', ['math.h']],
#FIXME strlcpy is detected by meson but drops at compilation time
# ['strlcpy', ['string.h']],
['siginfo_t', ['signal.h']],
['strerror_r', ['string.h']],
['pthread_getcpuclockid', ['pthread.h', 'time.h']],
['timerfd_create', ['sys/timerfd.h']],
['kevent', ['sys/types.h', 'sys/event.h', 'sys/time.h']],
#from here on we specify the dependencies
['dlopen', ['dlfcn.h'], ['dl']],
['dlsym', ['dlfcn.h'], ['dl']],
['lround', ['math.h'], ['m']],
['shm_open', ['sys/mman.h', 'sys/stat.h', 'fcntl.h'], ['rt']],
#from here on we specify arguments
['splice', ['fcntl.h'], [], '-D_GNU_SOURCE=1'],
['sched_getcpu', ['sched.h'], [], '-D_GNU_SOURCE=1'],
['dladdr', ['dlfcn.h'], ['dl'], '-D_GNU_SOURCE=1']
]
strerror_r_char_p = cc.compiles('''#define _GNU_SOURCE
#include <string.h>
int func (void)
{
char error_string[256];
char *ptr = strerror_r (-2, error_string, 256);
char c = *strerror_r (-2, error_string, 256);
return c != 0 && ptr != (void*) 0L;
}
''',
name : 'strerror_r() returns char *')
if strerror_r_char_p
config_h.set('STRERROR_R_CHAR_P', '1')
endif
#for later use, a bunch of librarie findings
m = cc.find_library('m')
#just keep this here as required false, if it is not inplace the library rt will just be linked as NOP
dl = cc.find_library('dl', required: false)
rt = cc.find_library('rt', required: false)
thread_dep = dependency('threads')
#check for the headers
foreach header : header_checks
if cc.has_header(header)
config_h.set10('HAVE_'+header.underscorify().to_upper(), true)
endif
endforeach
foreach function : function_checks
function_name = function[0]
headers_to_search = function[1]
dependencies = []
args = []
# if there is a library, make sure they exist
if function.length() > 2
foreach library : function[2]
lib = cc.find_library(library, required : false)
if lib.found() == true
dependencies += lib
endif
endforeach
endif
#check if there are args
if function.length() > 3
args = function[3]
endif
# Only check the header if the dependencies are ready
foreach header : headers_to_search
if cc.has_header_symbol(header, function_name,
dependencies : dependencies,
args : args)
config_h.set10('HAVE_'+function_name.to_upper(), true)
endif
endforeach
endforeach
# The next checks are manually for now due to the fact that some names are not within the default pattern
if (cc.has_header_symbol('sys/stat.h', 'fstatat'))
config_h.set10('HAVE_ATFILE_SOURCE', true)
endif
if (cc.has_header('sys/mman.h'))
config_h.set10('HAVE_MMAN_H', true)
endif
config_h.set('VMAJ', version_major)
config_h.set('VMIN', version_minor)
config_h.set('VMIC', version_micro)
config_h.set('VREV', '0')
#jpeg detection ... life is a bit more complex there
jpeg = dependency('libjpeg', required: false)
if jpeg.found() == false
jpeg = cc.find_library('jpeg')
endif
if config_h.has('HAVE_KEVENT')
config_h.set('HAVE_NOTIFY_KEVENT', '1')
endif
config_h.set('SIZEOF_INT', cc.sizeof('int'))
config_h.set('SIZEOF_LONG', cc.sizeof('long'))
if sys_windows == true
config_h.set('HAVE_DLSYM', '1')
config_h.set('HAVE_NOTIFY_WIN32', '1')
endif
|
