From 56bb116305f349018a7bd05c77b3beb724983c57 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Tue, 23 Jul 2013 12:28:53 +0200
Subject: [PATCH] Fix loud linker error on mingw32.

Mingw for some reasons instantiates depending template before dependent
one, causing the dependent one to be instantiated twice.
---
 src/Math/instantiation.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/Math/instantiation.cpp b/src/Math/instantiation.cpp
index 99a20d760..dcaaaa601 100644
--- a/src/Math/instantiation.cpp
+++ b/src/Math/instantiation.cpp
@@ -52,21 +52,33 @@ template struct ConfigurationValue<Magnum::Math::RectangularMatrix<3, 4, Magnum:
 template struct ConfigurationValue<Magnum::Math::RectangularMatrix<4, 3, Magnum::Double>>;
 #endif
 
+/* For some reason mingw's GCC instantiates ConfigurationValue<Magnum::Math::Geometry::Rectangle<...>>
+   (which depends on ConfigurationValue<Magnum::Math::Vector<4, ...>) before
+   these and then loudly complains about multiple definitions. WTF. */
+
 template struct ConfigurationValue<Magnum::Math::Vector<2, Magnum::Float>>;
 template struct ConfigurationValue<Magnum::Math::Vector<3, Magnum::Float>>;
+#ifndef _WIN32
 template struct ConfigurationValue<Magnum::Math::Vector<4, Magnum::Float>>;
+#endif
 template struct ConfigurationValue<Magnum::Math::Vector<2, Magnum::Int>>;
 template struct ConfigurationValue<Magnum::Math::Vector<3, Magnum::Int>>;
+#ifndef _WIN32
 template struct ConfigurationValue<Magnum::Math::Vector<4, Magnum::Int>>;
+#endif
 template struct ConfigurationValue<Magnum::Math::Vector<2, Magnum::UnsignedInt>>;
 template struct ConfigurationValue<Magnum::Math::Vector<3, Magnum::UnsignedInt>>;
+#ifndef _WIN32
 template struct ConfigurationValue<Magnum::Math::Vector<4, Magnum::UnsignedInt>>;
+#endif
 #ifndef MAGNUM_TARGET_GLES
 template struct ConfigurationValue<Magnum::Math::Vector<2, Magnum::Double>>;
 template struct ConfigurationValue<Magnum::Math::Vector<3, Magnum::Double>>;
+#ifndef _WIN32
 template struct ConfigurationValue<Magnum::Math::Vector<4, Magnum::Double>>;
 #endif
 #endif
+#endif
 
 }}