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-rw-r--r--CMakeLists.txt27
1 files changed, 21 insertions, 6 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a325d1c1c..57575f4a2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -74,12 +74,17 @@ include_directories( ${CURL_SOURCE_DIR}/include )
option(BUILD_CURL_EXE "Set to ON to build cURL executable." ON)
option(BUILD_CURL_TESTS "Set to ON to build cURL tests." ON)
option(CURL_STATICLIB "Set to ON to build libcurl with static linking." OFF)
-option(CURL_USE_ARES "Set to ON to enable c-ares support" OFF)
+option(ENABLE_ARES "Set to ON to enable c-ares support" OFF)
+option(ENABLE_THREADED_RESOLVER "Set to ON to enable POSIX threaded DNS lookup" OFF)
# initialize CURL_LIBS
set(CURL_LIBS "")
-if(CURL_USE_ARES)
- set(USE_ARES ${CURL_USE_ARES})
+if(ENABLE_THREADED_RESOLVER AND ENABLE_ARES)
+ message(FATAL_ERROR "Options ENABLE_THREADED_RESOLVER and ENABLE_ARES are mutually exclusive")
+endif()
+
+if(ENABLE_ARES)
+ set(USE_ARES 1)
find_package(CARES REQUIRED)
list(APPEND CURL_LIBS ${CARES_LIBRARY} )
set(CURL_LIBS ${CURL_LIBS} ${CARES_LIBRARY})
@@ -236,6 +241,18 @@ if(WIN32)
include(${CMAKE_CURRENT_SOURCE_DIR}/CMake/Platforms/WindowsCache.cmake)
endif(WIN32)
+if(ENABLE_THREADED_RESOLVER)
+ check_include_file_concat("pthread.h" HAVE_PTHREAD_H)
+ if(HAVE_PTHREAD_H)
+ set(CMAKE_THREAD_PREFER_PTHREAD 1)
+ find_package(Threads)
+ if(CMAKE_USE_PTHREADS_INIT)
+ set(CURL_LIBS ${CURL_LIBS} ${CMAKE_THREAD_LIBS_INIT})
+ set(USE_THREADS_POSIX 1)
+ endif()
+ endif()
+endif()
+
# Check for all needed libraries
check_library_exists_concat("dl" dlopen HAVE_LIBDL)
check_library_exists_concat("socket" connect HAVE_LIBSOCKET)
@@ -1003,9 +1020,7 @@ _add_if("SSL" SSL_ENABLED)
_add_if("IPv6" ENABLE_IPV6)
_add_if("unix-sockets" USE_UNIX_SOCKETS)
_add_if("libz" HAVE_LIBZ)
-find_package(Threads)
-# AsynchDNS depends or USE_ARES or pthreads (mutually exclusive)
-_add_if("AsynchDNS" USE_ARES OR CMAKE_USE_PTHREADS_INIT)
+_add_if("AsynchDNS" USE_ARES OR USE_THREADS_POSIX)
_add_if("IDN" HAVE_LIBIDN)
# TODO SSP1 (WinSSL) check is missing
_add_if("SSPI" USE_WINDOWS_SSPI)