CMakeLists.txt: mingw: Simplify by using Boost_THREADAPI.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 93021a644da7a7e0420388251d59d2785bdc27f7..a66a95bd871e9ecb3e06e495ce0e16826e1fefbd 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -47,6 +47,10 @@ if(WIN32)
        set(Boost_USE_STATIC_LIBS ON)
        add_definitions(-DBOOST_THREAD_USE_LIB)
 
+       # On Windows/MinGW we need to use 'thread_win32' instead of 'thread'.
+       # The library is named libboost_thread_win32* (not libboost_thread*).
+       set(Boost_THREADAPI win32)
+
        # Windows does not support UNIX signals.
        set(ENABLE_SIGNALS FALSE)
 endif()
@@ -94,21 +98,11 @@ else()
        find_package(Qt4 REQUIRED QtCore QtGui QtSvg)
 endif()
 
-if(WIN32)
-if(ENABLE_TESTS)
-       # On Windows/MinGW we need to use 'thread_win32' instead of 'thread'.
-       # The library is named libboost_thread_win32* (not libboost_thread*).
-       find_package(Boost 1.42 COMPONENTS filesystem system thread_win32 unit_test_framework REQUIRED)
-else()
-       find_package(Boost 1.42 COMPONENTS filesystem system thread_win32 REQUIRED)
-endif()
-else()
 if(ENABLE_TESTS)
        find_package(Boost 1.42 COMPONENTS filesystem system thread unit_test_framework REQUIRED)
 else()
        find_package(Boost 1.42 COMPONENTS filesystem system thread REQUIRED)
 endif()
-endif()
 
 # Find the platform's thread library (needed for C++11 threads).
 # This will set ${CMAKE_THREAD_LIBS_INIT} to the correct, OS-specific value.