From 71c38479bed3cf54eee821cb08f0560ecf769b7e Mon Sep 17 00:00:00 2001
From: Patrick von Reth <vonreth@kde.org>
Date: Sun, 7 Sep 2014 14:30:18 +0200
Subject: [PATCH] fix windows build

---
 kstyle/CMakeLists.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/kstyle/CMakeLists.txt b/kstyle/CMakeLists.txt
index f0b1562b..0ad9d7ce 100644
--- a/kstyle/CMakeLists.txt
+++ b/kstyle/CMakeLists.txt
@@ -126,6 +126,12 @@ else()
   add_library(breeze MODULE ${breeze_PART_SRCS})
   target_link_libraries(breeze Qt5::Core Qt5::Gui Qt5::Widgets Qt5::DBus)
   target_link_libraries(breeze KF5::ConfigCore KF5::ConfigWidgets KF5::GuiAddons KF5::Style KF5::WindowSystem)
+  
+  if (WIN32)
+    # As stated in http://msdn.microsoft.com/en-us/library/4hwaceh6.aspx M_PI only gets defined
+    # when if _USE_MATH_DEFINES is defined
+    target_compile_definitions(breeze PRIVATE _USE_MATH_DEFINES _BSD_SOURCE)
+    endif()
 
   if(XCB_XCB_FOUND)
     target_link_libraries(breeze ${XCB_LIBRARIES})