Fix building with Qt5 on MSVC by undefining min/max macros

The Windows stdlib.h header defines min/max macros, which interfer with
the Qt5 header files. Luckily, it also provides the define NOMINMAX which
suppresses these macros, and fix building.

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 26f967f..3033e60 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -447,6 +447,7 @@ endif(STATIC AND CMAKE_COMPILER_IS_GNUCXX)
 if(WIN32)
   link_libraries(imm32 winmm dbghelp Secur32)  # missing by default :/
   if(MSVC)
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /DNOMINMAX")
     set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBUGINFO "/debug /INCREMENTAL:YES /NODEFAULTLIB:libcmt /DEFAULTLIB:msvcrt")
     set(CMAKE_EXE_LINKER_FLAGS_DEBUG "/debug /INCREMENTAL:YES /NODEFAULTLIB:libcmt")
     set(CMAKE_EXE_LINKER_FLAGS_DEBUGFULL "${CMAKE_EXE_LINKER_FLAGS_DEBUG}")