[CMake] Fix compilation without Python bindings

src/CMakeLists.txt

@@ -52,10 +52,11 @@ SET(${PROJECT_NAME}_MULTIBODY_PARSER_PYTHON_SOURCES
   multibody/parser/python.cpp
   )
 
-SET(${PROJECT_NAME}_SOURCES
-  ${${PROJECT_NAME}_MULTIBODY_SOURCES}
-  ${${PROJECT_NAME}_MULTIBODY_PARSER_PYTHON_SOURCES}
-  )
+SET(${PROJECT_NAME}_SOURCES ${${PROJECT_NAME}_MULTIBODY_SOURCES})
+
+IF(BUILD_PYTHON_INTERFACE)
+  LIST(APPEND ${PROJECT_NAME}_SOURCES ${${PROJECT_NAME}_MULTIBODY_PARSER_PYTHON_SOURCES})
+ENDIF(BUILD_PYTHON_INTERFACE)
 
 IF(LUA5_1_FOUND)
   SET(${PROJECT_NAME}_MULTIBODY_PARSER_LUA_SOURCES 
@@ -71,7 +72,10 @@ IF(UNIX)
     SET_TARGET_PROPERTIES( ${PROJECT_NAME} PROPERTIES LINKER_LANGUAGE CXX)
     PKG_CONFIG_USE_DEPENDENCY(${PROJECT_NAME} eigen3)
     TARGET_LINK_LIBRARIES(${PROJECT_NAME} ${Boost_LIBRARIES})
-    TARGET_LINK_BOOST_PYTHON(${PROJECT_NAME})
+
+    IF(BUILD_PYTHON_INTERFACE)
+      TARGET_LINK_BOOST_PYTHON(${PROJECT_NAME})
+    ENDIF(BUILD_PYTHON_INTERFACE)
 
     IF(URDFDOM_FOUND)
       PKG_CONFIG_USE_DEPENDENCY(${PROJECT_NAME} urdfdom)

utils/CMakeLists.txt

@@ -29,8 +29,8 @@ MACRO(ADD_UTIL NAME UTIL_SRC PKGS)
     PKG_CONFIG_USE_DEPENDENCY(${NAME} ${PKG})
   ENDFOREACH(PKG)
   TARGET_LINK_LIBRARIES (${NAME} ${Boost_LIBRARIES} ${PROJECT_NAME})
-  TARGET_LINK_BOOST_PYTHON(${NAME})
   IF(BUILD_PYTHON_INTERFACE)
+    TARGET_LINK_BOOST_PYTHON(${NAME})
     TARGET_LINK_LIBRARIES(${NAME} ${PYTHON_LIBRARIES})
   ENDIF(BUILD_PYTHON_INTERFACE)