make GLUT optional in cmake

fix for btMultiBody to avoid extreme energy gain

src/Bullet3Common/CMakeLists.txt

@@ -0,0 +1,63 @@
+
+INCLUDE_DIRECTORIES(
+	${BULLET_PHYSICS_SOURCE_DIR}/src
+)
+
+SET(Bullet3Common_SRCS
+	b3AlignedAllocator.cpp
+	b3Vector3.cpp
+	b3Logging.cpp
+)
+
+SET(Bullet3Common_HDRS
+	b3AlignedAllocator.h
+	b3AlignedObjectArray.h
+	b3CommandLineArgs.h
+	b3HashMap.h
+	b3Logging.h
+	b3Matrix3x3.h
+	b3MinMax.h
+	b3PoolAllocator.h
+	b3QuadWord.h
+	b3Quaternion.h
+	b3Random.h
+	b3Scalar.h
+	b3StackAlloc.h
+	b3Transform.h
+	b3TransformUtil.h
+	b3Vector3.h
+	shared/b3Float4
+	shared/b3Int2.h
+	shared/b3Int4.h
+	shared/b3Mat3x3.h
+	shared/b3PlatformDefinitions
+	shared/b3Quat.h
+)
+
+ADD_LIBRARY(Bullet3Common ${Bullet3Common_SRCS} ${Bullet3Common_HDRS})
+SET_TARGET_PROPERTIES(Bullet3Common PROPERTIES VERSION ${BULLET_VERSION})
+SET_TARGET_PROPERTIES(Bullet3Common PROPERTIES SOVERSION ${BULLET_VERSION})
+
+IF (INSTALL_LIBS)
+	IF (NOT INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES)
+		#FILES_MATCHING requires CMake 2.6
+		IF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.5)
+			IF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK)
+				INSTALL(TARGETS Bullet3Common DESTINATION .)
+			ELSE (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK)
+				INSTALL(TARGETS Bullet3Common 
+					RUNTIME DESTINATION bin
+					LIBRARY DESTINATION lib${LIB_SUFFIX}
+					ARCHIVE DESTINATION lib${LIB_SUFFIX})
+				INSTALL(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+DESTINATION ${INCLUDE_INSTALL_DIR} FILES_MATCHING PATTERN "*.h"  PATTERN
+".svn" EXCLUDE PATTERN "CMakeFiles" EXCLUDE)
+			ENDIF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK)
+		ENDIF (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 2.5)
+
+		IF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK)
+			SET_TARGET_PROPERTIES(Bullet3Common PROPERTIES FRAMEWORK true)
+			SET_TARGET_PROPERTIES(Bullet3Common PROPERTIES PUBLIC_HEADER "${Bullet3Common_HDRS}")
+		ENDIF (APPLE AND BUILD_SHARED_LIBS AND FRAMEWORK)
+	ENDIF (NOT INTERNAL_CREATE_DISTRIBUTABLE_MSVC_PROJECTFILES)
+ENDIF (INSTALL_LIBS)