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cmake: detect HAVE_GETADDRINFO_THREADSAFE #11979

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cmake: detect HAVE_GETADDRINFO_THREADSAFE #11979

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e741d32
cmake: detect `HAVE_GETADDRINFO_THREADSAFE`
vszakats Sep 29, 2023
cd3b3c4
tweak 1
vszakats Sep 29, 2023
cc794fc
tweak 2
vszakats Sep 29, 2023
3b04573
need HAVE_GETADDRINFO
vszakats Sep 29, 2023
134be9f
formatting
vszakats Sep 29, 2023
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69 changes: 68 additions & 1 deletion CMake/OtherTests.cmake
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Expand Up @@ -22,6 +22,8 @@
#
###########################################################################
include(CheckCSourceCompiles)
include(CheckCSourceRuns)

# The begin of the sources (macros and includes)
set(_source_epilogue "#undef inline")

Expand Down Expand Up @@ -89,7 +91,6 @@ if(NOT CMAKE_CROSSCOMPILING)
# only try this on non-apple platforms

# if not cross-compilation...
include(CheckCSourceRuns)
set(CMAKE_REQUIRED_FLAGS "")
if(HAVE_SYS_POLL_H)
set(CMAKE_REQUIRED_FLAGS "-DHAVE_SYS_POLL_H")
Expand Down Expand Up @@ -132,3 +133,69 @@ if(NOT CMAKE_CROSSCOMPILING)
}" HAVE_POLL_FINE)
endif()
endif()

# Detect HAVE_GETADDRINFO_THREADSAFE

if(WIN32)
set(HAVE_GETADDRINFO_THREADSAFE ${HAVE_GETADDRINFO})
elseif(CMAKE_SYSTEM_NAME STREQUAL "AIX" OR
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CMAKE_SYSTEM_NAME STREQUAL "Darwin" 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(save_epilogue "${_source_epilogue}")
unset(_source_epilogue)

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_runs("${_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()

set(_source_epilogue "${save_epilogue}")
endif()
3 changes: 0 additions & 3 deletions CMakeLists.txt
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Expand Up @@ -1141,9 +1141,6 @@ check_symbol_exists(strerror_r "${CURL_INCLUDES};stdlib.h;string.h" HAVE_STR
check_symbol_exists(siginterrupt "${CURL_INCLUDES}" HAVE_SIGINTERRUPT)
check_symbol_exists(getaddrinfo "${CURL_INCLUDES};stdlib.h;string.h" HAVE_GETADDRINFO)
check_symbol_exists(getifaddrs "${CURL_INCLUDES};stdlib.h" HAVE_GETIFADDRS)
if(WIN32)
set(HAVE_GETADDRINFO_THREADSAFE ${HAVE_GETADDRINFO})
endif()
check_symbol_exists(freeaddrinfo "${CURL_INCLUDES}" HAVE_FREEADDRINFO)
check_symbol_exists(pipe "${CURL_INCLUDES}" HAVE_PIPE)
check_symbol_exists(ftruncate "${CURL_INCLUDES}" HAVE_FTRUNCATE)
Expand Down