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Added a feature test to auto enable/disable CPPHTTPLIB_USE_NON_BLOCKI… (#2578)

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* Added a feature test to auto enable/disable CPPHTTPLIB_USE_NON_BLOCKING_GETADDRINFO

* turned status: WARNING 'GetAddrInfoExCancel is unavailable; disabling non-blocking getaddrinfo.' into a warning

* added ws2_32 for the GetAddrInfoExCancel. this catches previous false negatives

---------

Co-authored-by: Tobias Wallner <tobias.wallner@qtlabs.at>
This commit is contained in:
Tobias Wallner
2026-09-25 15:20:00 -04:00
committed by GitHub
co-authored by Tobias Wallner
parent 4f3f9ef19b
commit 5a202d3d5f
1 changed files with 21 additions and 3 deletions
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CMakeLists.txt
+21 -3
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@@ -15,7 +15,7 @@
* HTTPLIB_REQUIRE_BROTLI (default off)
* HTTPLIB_REQUIRE_ZSTD (default off)
* HTTPLIB_DISABLE_MACOSX_AUTOMATIC_ROOT_CERTIFICATES (default off)
* HTTPLIB_USE_NON_BLOCKING_GETADDRINFO (default on)
* HTTPLIB_USE_NON_BLOCKING_GETADDRINFO (default on when supported)
* HTTPLIB_COMPILE (default off)
* HTTPLIB_INSTALL (default on)
* HTTPLIB_SHARED (default off) builds as a shared library (if HTTPLIB_COMPILE is ON)
@@ -181,6 +181,24 @@ if(HTTPLIB_DISABLE_MACOSX_AUTOMATIC_ROOT_CERTIFICATES)
set(HTTPLIB_IS_USING_MACOSX_AUTOMATIC_ROOT_CERTIFICATES FALSE)
endif()
set(HTTPLIB_IS_USING_NON_BLOCKING_GETADDRINFO ${HTTPLIB_USE_NON_BLOCKING_GETADDRINFO})
if(HTTPLIB_IS_USING_NON_BLOCKING_GETADDRINFO AND WIN32)
include(CheckCXXSymbolExists)
set(_httplib_cmake_required_definitions ${CMAKE_REQUIRED_DEFINITIONS})
set(_httplib_cmake_required_libraries ${CMAKE_REQUIRED_LIBRARIES})
list(APPEND CMAKE_REQUIRED_DEFINITIONS -D_WIN32_WINNT=0x0A00)
list(APPEND CMAKE_REQUIRED_LIBRARIES ws2_32)
check_cxx_symbol_exists(GetAddrInfoExCancel "winsock2.h;ws2tcpip.h" HTTPLIB_HAVE_GETADDRINFOEXCANCEL)
set(CMAKE_REQUIRED_DEFINITIONS ${_httplib_cmake_required_definitions})
set(CMAKE_REQUIRED_LIBRARIES ${_httplib_cmake_required_libraries})
unset(_httplib_cmake_required_definitions)
unset(_httplib_cmake_required_libraries)
if(NOT HTTPLIB_HAVE_GETADDRINFOEXCANCEL)
set(HTTPLIB_IS_USING_NON_BLOCKING_GETADDRINFO FALSE)
message(WARNING "GetAddrInfoExCancel is unavailable; disabling non-blocking getaddrinfo.")
endif()
endif()
# Threads needed for <thread> on some systems, and for <pthread.h> on Linux
set(THREADS_PREFER_PTHREAD_FLAG TRUE)
@@ -367,7 +385,7 @@ target_link_libraries(${PROJECT_NAME} ${_INTERFACE_OR_PUBLIC}
# Needed for API from MacOS Security framework
"$<$<AND:$<PLATFORM_ID:Darwin>,$<BOOL:${HTTPLIB_IS_USING_OPENSSL}>,$<BOOL:${HTTPLIB_IS_USING_MACOSX_AUTOMATIC_ROOT_CERTIFICATES}>>:-framework CFNetwork -framework CoreFoundation -framework Security>"
# Needed for non-blocking getaddrinfo on MacOS
"$<$<AND:$<PLATFORM_ID:Darwin>,$<BOOL:${HTTPLIB_USE_NON_BLOCKING_GETADDRINFO}>>:-framework CFNetwork -framework CoreFoundation>"
"$<$<AND:$<PLATFORM_ID:Darwin>,$<BOOL:${HTTPLIB_IS_USING_NON_BLOCKING_GETADDRINFO}>>:-framework CFNetwork -framework CoreFoundation>"
# Can't put multiple targets in a single generator expression or it bugs out.
$<$<BOOL:${HTTPLIB_IS_USING_BROTLI}>:Brotli::common>
$<$<BOOL:${HTTPLIB_IS_USING_BROTLI}>:Brotli::encoder>
@@ -390,7 +408,7 @@ target_compile_definitions(${PROJECT_NAME} ${_INTERFACE_OR_PUBLIC}
$<$<BOOL:${HTTPLIB_IS_USING_WOLFSSL}>:CPPHTTPLIB_WOLFSSL_SUPPORT>
$<$<BOOL:${HTTPLIB_IS_USING_MBEDTLS}>:CPPHTTPLIB_MBEDTLS_SUPPORT>
$<$<AND:$<PLATFORM_ID:Darwin>,$<BOOL:${HTTPLIB_DISABLE_MACOSX_AUTOMATIC_ROOT_CERTIFICATES}>>:CPPHTTPLIB_DISABLE_MACOSX_AUTOMATIC_ROOT_CERTIFICATES>
$<$<BOOL:${HTTPLIB_USE_NON_BLOCKING_GETADDRINFO}>:CPPHTTPLIB_USE_NON_BLOCKING_GETADDRINFO>
$<$<BOOL:${HTTPLIB_IS_USING_NON_BLOCKING_GETADDRINFO}>:CPPHTTPLIB_USE_NON_BLOCKING_GETADDRINFO>
)
# CMake configuration files installation directory