Fixed compilation error on Windows

6813ca57 · peastman · 766f480f · 6813ca57
Commit 6813ca57 authored Feb 23, 2017 by peastman
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plugins/amoeba/platforms/reference/src/SimTKReference/AmoebaReferenceWcaDispersionForce.cpp .../src/SimTKReference/AmoebaReferenceWcaDispersionForce.cpp +3 -0

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--- a/plugins/amoeba/platforms/reference/src/SimTKReference/AmoebaReferenceWcaDispersionForce.cpp
+++ b/plugins/amoeba/platforms/reference/src/SimTKReference/AmoebaReferenceWcaDispersionForce.cpp
@@ -22,6 +22,9 @@
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

+#ifdef WIN32
+  #define _USE_MATH_DEFINES // Needed to get M_PI
+#endif
 #include "AmoebaReferenceForce.h"
 #include "AmoebaReferenceWcaDispersionForce.h"
 #include <cmath>