cmake: fix Windows lib build directories

CMakeLists.txt

@@ -70,6 +70,20 @@ PROJECT(${PROJECT_NAME} ${PROJECT_ARGS})
 
 OPTION(BUILD_PYTHON_INTERFACE "Build the python bindings" ON)
 CMAKE_DEPENDENT_OPTION(GENERATE_PYTHON_STUBS "Generate the Python stubs associated to the Python library" OFF BUILD_PYTHON_INTERFACE OFF)
+
+IF(WIN32)
+  # Set default Windows build paths
+  SET(CMAKE_LIBRARY_OUTPUT_DIRECTORY
+    ${PROJECT_BINARY_DIR}/Bin
+    CACHE PATH "Single directory for all libraries")
+  SET(CMAKE_RUNTIME_OUTPUT_DIRECTORY
+    ${PROJECT_BINARY_DIR}/Bin
+    CACHE PATH "Single directory for all executables")
+  SET(CMAKE_ARCHIVE_OUTPUT_DIRECTORY
+    ${PROJECT_BINARY_DIR}/Bin
+    CACHE PATH "Sing$le directory for all archives")
+ENDIF(WIN32)
+
 ADD_PROJECT_DEPENDENCY(Eigen3 REQUIRED PKG_CONFIG_REQUIRES "eigen3 >= 3.0.0")
 
 if(BUILD_PYTHON_INTERFACE)