cmake: Allow to build with MinGW POSIX threads.

Win32 threads are still preferable, but MPOSIX threads seems to be getting more prevalent among some Linux distros. Fixes apitrace#750
per-mathisen-arm · Jul 8, 2021 · cb3a85c · cb3a85c
1 parent 0001ff6
commit cb3a85c
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diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -338,7 +338,7 @@ if (MINGW)
         ERROR_QUIET
     )
     if (NOT STATUS_CXX11_THREADS EQUAL 0)
-        message (SEND_ERROR "MinGW builds require WIN32 threads.")
+        message (WARNING "MinGW with POSIX threads detected; Win32 threads recommended.")
     else ()
         # TODO: Consider https://github.com/meganz/mingw-std-threads
         include_directories (${CMAKE_CURRENT_SOURCE_DIR}/compat/cxx11-threads)

diff --git a/compat/winsdk_compat.h b/compat/winsdk_compat.h
@@ -42,6 +42,7 @@
 #include <iostream>
 #include <memory>
 #include <vector>
+#include <thread>
 #endif