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
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
include(CheckIncludeFile)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckLibraryExists)
include(CheckTypeSize)
include(CheckStructHasMember)
include(CheckPrototypeDefinition)
include(TestBigEndian)
set(PACKAGE ${APPLICATION_NAME})
set(VERSION ${APPLICATION_VERSION})
set(DATADIR ${DATA_INSTALL_DIR})
set(LIBDIR ${LIB_INSTALL_DIR})
set(PLUGINDIR "${PLUGIN_INSTALL_DIR}-${LIBRARY_SOVERSION}")
set(SYSCONFDIR ${SYSCONF_INSTALL_DIR})
set(BINARYDIR ${CMAKE_BINARY_DIR})
set(SOURCEDIR ${CMAKE_SOURCE_DIR})
function(COMPILER_DUMPVERSION _OUTPUT_VERSION)
# Remove whitespaces from the argument.
# This is needed for CC="ccache gcc" cmake ..
string(REPLACE " " "" _C_COMPILER_ARG "${CMAKE_C_COMPILER_ARG1}")
execute_process(
COMMAND
${CMAKE_C_COMPILER} ${_C_COMPILER_ARG} -dumpversion
OUTPUT_VARIABLE _COMPILER_VERSION
)
string(REGEX REPLACE "([0-9])\\.([0-9])(\\.[0-9])?" "\\1\\2"
_COMPILER_VERSION "${_COMPILER_VERSION}")
set(${_OUTPUT_VERSION} ${_COMPILER_VERSION} PARENT_SCOPE)
endfunction()
if(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
compiler_dumpversion(GNUCC_VERSION)
if (NOT GNUCC_VERSION EQUAL 34)
set(CMAKE_REQUIRED_FLAGS "-fvisibility=hidden")
check_c_source_compiles(
"void __attribute__((visibility(\"default\"))) test() {}
int main(void){ return 0; }
" WITH_VISIBILITY_HIDDEN)
set(CMAKE_REQUIRED_FLAGS "")
endif (NOT GNUCC_VERSION EQUAL 34)
endif(CMAKE_COMPILER_IS_GNUCC AND NOT MINGW AND NOT OS2)
# HEADERS
check_include_file(sys/filio.h HAVE_SYS_FILIO_H)
check_include_file(sys/signalfd.h HAVE_SYS_SIGNALFD_H)
check_include_file(sys/eventfd.h HAVE_SYS_EVENTFD_H)
check_include_file(sys/timerfd.h HAVE_SYS_TIMERFD_H)
check_include_file(gnu/lib-names.h HAVE_GNU_LIB_NAMES_H)
check_include_file(rpc/rpc.h HAVE_RPC_RPC_H)
# FUNCTIONS
check_function_exists(strncpy HAVE_STRNCPY)
check_function_exists(vsnprintf HAVE_VSNPRINTF)
check_function_exists(snprintf HAVE_SNPRINTF)
check_function_exists(signalfd HAVE_SIGNALFD)
check_function_exists(eventfd HAVE_EVENTFD)
check_function_exists(timerfd_create HAVE_TIMERFD_CREATE)
check_function_exists(bindresvport HAVE_BINDRESVPORT)
check_function_exists(accept4 HAVE_ACCEPT4)
check_function_exists(pledge HAVE_PLEDGE)
if (UNIX)
if (NOT LINUX)
# libsocket (Solaris)
check_library_exists(socket getaddrinfo "" HAVE_LIBSOCKET)
if (HAVE_LIBSOCKET)
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} socket)
endif (HAVE_LIBSOCKET)
# libnsl/inet_pton (Solaris)
check_library_exists(nsl inet_pton "" HAVE_LIBNSL)
if (HAVE_LIBNSL)
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} nsl)
endif (HAVE_LIBNSL)
endif (NOT LINUX)
check_function_exists(getaddrinfo HAVE_GETADDRINFO)
endif (UNIX)
set(SWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "socket_wrapper required system libraries")
# STRUCTS
check_struct_has_member("struct in_pktinfo" ipi_addr "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_IN_PKTINFO)
set(CMAKE_REQUIRED_FLAGS -D_GNU_SOURCE)
check_struct_has_member("struct in6_pktinfo" ipi6_addr "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_IN6_PKTINFO)
set(CMAKE_REQUIRED_FLAGS)
# STRUCT MEMBERS
check_struct_has_member("struct sockaddr" sa_len "sys/types.h;sys/socket.h;netinet/in.h" HAVE_STRUCT_SOCKADDR_SA_LEN)
check_struct_has_member("struct msghdr" msg_control "sys/types.h;sys/socket.h" HAVE_STRUCT_MSGHDR_MSG_CONTROL)
# PROTOTYPES
check_prototype_definition(gettimeofday
"int gettimeofday(struct timeval *tv, struct timezone *tz)"
"-1"
"sys/time.h"
HAVE_GETTIMEOFDAY_TZ)
check_prototype_definition(gettimeofday
"int gettimeofday(struct timeval *tv, void *tzp)"
"-1"
"sys/time.h"
HAVE_GETTIMEOFDAY_TZ_VOID)
check_prototype_definition(accept
"int accept(int s, struct sockaddr *addr, Psocklen_t addrlen)"
"-1"
"sys/types.h;sys/socket.h"
HAVE_ACCEPT_PSOCKLEN_T)
check_prototype_definition(ioctl
"int ioctl(int s, int r, ...)"
"-1"
"unistd.h;sys/ioctl.h"
HAVE_IOCTL_INT)
if (HAVE_EVENTFD)
check_prototype_definition(eventfd
"int eventfd(unsigned int count, int flags)"
"-1"
"sys/eventfd.h"
HAVE_EVENTFD_UNSIGNED_INT)
endif (HAVE_EVENTFD)
# IPV6
check_c_source_compiles("
#include <stdlib.h>
#include <sys/socket.h>
#include <netdb.h>
#include <netinet/in.h>
#include <net/if.h>
int main(void) {
struct sockaddr_storage sa_store;
struct addrinfo *ai = NULL;
struct in6_addr in6addr;
int idx = if_nametoindex(\"iface1\");
int s = socket(AF_INET6, SOCK_STREAM, 0);
int ret = getaddrinfo(NULL, NULL, NULL, &ai);
if (ret != 0) {
const char *es = gai_strerror(ret);
}
freeaddrinfo(ai);
{
int val = 1;
#ifdef HAVE_LINUX_IPV6_V6ONLY_26
#define IPV6_V6ONLY 26
#endif
ret = setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
(const void *)&val, sizeof(val));
}
return 0;
}" HAVE_IPV6)
check_c_source_compiles("
#include <sys/socket.h>
int main(void) {
struct sockaddr_storage s;
return 0;
}" HAVE_SOCKADDR_STORAGE)
check_c_source_compiles("
void test_destructor_attribute(void) __attribute__ ((destructor));
void test_destructor_attribute(void)
{
return;
}
int main(void) {
return 0;
}" HAVE_DESTRUCTOR_ATTRIBUTE)
check_c_source_compiles("
__thread int tls;
int main(void) {
return 0;
}" HAVE_GCC_THREAD_LOCAL_STORAGE)
check_c_source_compiles("
void log_fn(const char *format, ...) __attribute__ ((format (printf, 1, 2)));
int main(void) {
return 0;
}" HAVE_FUNCTION_ATTRIBUTE_FORMAT)
# If this produces a warning treat it as error!
set(CMAKE_REQUIRED_FLAGS "-Werror")
check_c_source_compiles("
void test_address_sanitizer_attribute(void) __attribute__((no_sanitize_address));
void test_address_sanitizer_attribute(void)
{
return;
}
int main(void) {
return 0;
}" HAVE_ADDRESS_SANITIZER_ATTRIBUTE)
set(CMAKE_REQUIRED_FLAGS)
check_library_exists(dl dlopen "" HAVE_LIBDL)
if (HAVE_LIBDL)
find_library(DLFCN_LIBRARY dl)
set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${DLFCN_LIBRARY})
endif (HAVE_LIBDL)
if (OSX)
set(HAVE_APPLE 1)
endif (OSX)
# ENDIAN
if (NOT WIN32)
test_big_endian(WORDS_BIGENDIAN)
endif (NOT WIN32)
check_type_size(pid_t SIZEOF_PID_T)
set(SWRAP_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} CACHE INTERNAL "swrap required system libraries")
|
