3 files changed, 9 insertions, 0 deletions
diff --git a/src/particle/imageparticle.cpp b/src/particle/imageparticle.cpp
index 5dde7a622..cf2411e9a 100644
--- a/src/particle/imageparticle.cpp
+++ b/src/particle/imageparticle.cpp
@@ -27,6 +27,8 @@
 
 #include "resources/image/image.h"
 
+#include "utils/performance.h"
+
 #include "debug.h"
 
 StringIntMap ImageParticle::imageParticleCountByName;
diff --git a/src/particle/particleemitterprop.h b/src/particle/particleemitterprop.h
index d82f188ac..0d1f9e5cb 100644
--- a/src/particle/particleemitterprop.h
+++ b/src/particle/particleemitterprop.h
@@ -30,6 +30,11 @@
 
 #include "localconsts.h"
 
+// required by MSYS2 / Windows
+#ifndef M_PI
+#define M_PI    3.1415926535897932384626433832795
+#endif
+
 template <typename T> struct ParticleEmitterProp final
 {
     ParticleEmitterProp() :
diff --git a/src/particle/textparticle.cpp b/src/particle/textparticle.cpp
index 1d699cc0f..15517e018 100644
--- a/src/particle/textparticle.cpp
+++ b/src/particle/textparticle.cpp
@@ -29,6 +29,8 @@
 
 #include "render/graphics.h"
 
+#include "utils/performance.h"
+
 #include "debug.h"
 
 TextParticle::TextParticle(const std::string &restrict text,