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#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
# SPDX-License-Identifier: curl
#
###########################################################################
include(CheckCSourceCompiles)
include(CheckCSourceRuns)
include(CheckTypeSize)
macro(add_header_include check header)
if(${check})
set(_source_epilogue "${_source_epilogue}
#include <${header}>")
endif()
endmacro()
set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
if(NOT DEFINED HAVE_STRUCT_SOCKADDR_STORAGE)
set(CMAKE_EXTRA_INCLUDE_FILES)
if(WIN32)
set(CMAKE_EXTRA_INCLUDE_FILES "winsock2.h")
set(CMAKE_REQUIRED_DEFINITIONS "-DWIN32_LEAN_AND_MEAN")
set(CMAKE_REQUIRED_LIBRARIES "ws2_32")
elseif(HAVE_SYS_SOCKET_H)
set(CMAKE_EXTRA_INCLUDE_FILES "sys/socket.h")
endif()
check_type_size("struct sockaddr_storage" SIZEOF_STRUCT_SOCKADDR_STORAGE)
set(HAVE_STRUCT_SOCKADDR_STORAGE ${HAVE_SIZEOF_STRUCT_SOCKADDR_STORAGE})
endif()
if(NOT WIN32)
set(_source_epilogue "#undef inline")
add_header_include(HAVE_SYS_TYPES_H "sys/types.h")
add_header_include(HAVE_SYS_SOCKET_H "sys/socket.h")
check_c_source_compiles("${_source_epilogue}
int main(void)
{
int flag = MSG_NOSIGNAL;
(void)flag;
return 0;
}" HAVE_MSG_NOSIGNAL)
endif()
set(_source_epilogue "#undef inline")
add_header_include(HAVE_SYS_TIME_H "sys/time.h")
check_c_source_compiles("${_source_epilogue}
#include <time.h>
int main(void)
{
struct timeval ts;
ts.tv_sec = 0;
ts.tv_usec = 0;
(void)ts;
return 0;
}" HAVE_STRUCT_TIMEVAL)
unset(CMAKE_TRY_COMPILE_TARGET_TYPE)
if(NOT CMAKE_CROSSCOMPILING AND NOT APPLE)
set(_source_epilogue "#undef inline")
add_header_include(HAVE_SYS_POLL_H "sys/poll.h")
add_header_include(HAVE_POLL_H "poll.h")
check_c_source_runs("${_source_epilogue}
#include <stdlib.h>
#include <sys/time.h>
int main(void)
{
if(0 != poll(0, 0, 10)) {
return 1; /* fail */
}
else {
/* detect the 10.12 poll() breakage */
struct timeval before, after;
int rc;
size_t us;
gettimeofday(&before, NULL);
rc = poll(NULL, 0, 500);
gettimeofday(&after, NULL);
us = (after.tv_sec - before.tv_sec) * 1000000 +
(after.tv_usec - before.tv_usec);
if(us < 400000) {
return 1;
}
}
return 0;
}" HAVE_POLL_FINE)
endif()
# Detect HAVE_GETADDRINFO_THREADSAFE
if(WIN32)
set(HAVE_GETADDRINFO_THREADSAFE ${HAVE_GETADDRINFO})
elseif(NOT HAVE_GETADDRINFO)
set(HAVE_GETADDRINFO_THREADSAFE FALSE)
elseif(APPLE OR
CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR
CMAKE_SYSTEM_NAME STREQUAL "HP-UX" OR
CMAKE_SYSTEM_NAME STREQUAL "MidnightBSD" OR
CMAKE_SYSTEM_NAME STREQUAL "NetBSD" OR
CMAKE_SYSTEM_NAME STREQUAL "SunOS")
set(HAVE_GETADDRINFO_THREADSAFE TRUE)
elseif(CMAKE_SYSTEM_NAME MATCHES "BSD")
set(HAVE_GETADDRINFO_THREADSAFE FALSE)
endif()
if(NOT DEFINED HAVE_GETADDRINFO_THREADSAFE)
set(_source_epilogue "#undef inline")
add_header_include(HAVE_SYS_SOCKET_H "sys/socket.h")
add_header_include(HAVE_SYS_TIME_H "sys/time.h")
add_header_include(HAVE_NETDB_H "netdb.h")
check_c_source_compiles("${_source_epilogue}
int main(void)
{
#ifdef h_errno
return 0;
#else
force compilation error
#endif
}" HAVE_H_ERRNO)
if(NOT HAVE_H_ERRNO)
check_c_source_compiles("${_source_epilogue}
int main(void)
{
h_errno = 2;
return h_errno != 0 ? 1 : 0;
}" HAVE_H_ERRNO_ASSIGNABLE)
if(NOT HAVE_H_ERRNO_ASSIGNABLE)
check_c_source_compiles("${_source_epilogue}
int main(void)
{
#if defined(_POSIX_C_SOURCE) && (_POSIX_C_SOURCE >= 200809L)
return 0;
#elif defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 700)
return 0;
#else
force compilation error
#endif
}" HAVE_H_ERRNO_SBS_ISSUE_7)
endif()
endif()
if(HAVE_H_ERRNO OR HAVE_H_ERRNO_ASSIGNABLE OR HAVE_H_ERRNO_SBS_ISSUE_7)
set(HAVE_GETADDRINFO_THREADSAFE TRUE)
endif()
endif()
if(NOT WIN32 AND NOT DEFINED HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
set(_source_epilogue "#undef inline")
add_header_include(HAVE_SYS_TYPES_H "sys/types.h")
add_header_include(HAVE_SYS_TIME_H "sys/time.h")
check_c_source_compiles("${_source_epilogue}
#include <time.h>
int main(void)
{
struct timespec ts;
(void)clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
return 0;
}" HAVE_CLOCK_GETTIME_MONOTONIC_RAW)
endif()
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