CMake: make most of DebugTools dependencies conditional.

MeshTools and Shaders dependencies are needed only if either the Shapes
or SceneGraph library is compiled, Primitives are needed only if the
Shapes library is compiled.

CMakeLists.txt

@@ -79,11 +79,11 @@ cmake_dependent_option(WITH_TGAIMPORTER "Build TgaImporter plugin" OFF "NOT WITH
 # Parts of the library
 cmake_dependent_option(WITH_AUDIO "Build Audio library" OFF "NOT WITH_WAVAUDIOIMPORTER" ON)
 option(WITH_DEBUGTOOLS "Build DebugTools library" ON)
-cmake_dependent_option(WITH_MESHTOOLS "Build MeshTools library" ON "NOT WITH_DEBUGTOOLS;NOT WITH_OBJIMPORTER" ON)
-cmake_dependent_option(WITH_PRIMITIVES "Builf Primitives library" ON "NOT WITH_DEBUGTOOLS" ON)
+cmake_dependent_option(WITH_MESHTOOLS "Build MeshTools library" ON "( NOT WITH_DEBUGTOOLS OR ( NOT WITH_SHAPES AND NOT WITH_SCENEGRAPH ) ) AND NOT WITH_OBJIMPORTER" ON)
+cmake_dependent_option(WITH_PRIMITIVES "Builf Primitives library" ON "NOT WITH_DEBUGTOOLS OR NOT WITH_SHAPES" ON)
 option(WITH_SHAPES "Build Shapes library" ON)
 cmake_dependent_option(WITH_SCENEGRAPH "Build SceneGraph library" ON "NOT WITH_SHAPES" ON)
-cmake_dependent_option(WITH_SHADERS "Build Shaders library" ON "NOT WITH_DEBUGTOOLS" ON)
+cmake_dependent_option(WITH_SHADERS "Build Shaders library" ON "NOT WITH_DEBUGTOOLS OR ( NOT WITH_SHAPES AND NOT WITH_SCENEGRAPH )" ON)
 cmake_dependent_option(WITH_TEXT "Build Text library" ON "NOT WITH_MAGNUMFONT;NOT WITH_MAGNUMFONTCONVERTER" ON)
 cmake_dependent_option(WITH_TEXTURETOOLS "Build TextureTools library" ON "NOT WITH_TEXT;NOT WITH_DISTANCEFIELDCONVERTER" ON)
 

src/Magnum/DebugTools/CMakeLists.txt

@@ -106,16 +106,17 @@ if(BUILD_STATIC_PIC)
     set_target_properties(MagnumDebugTools PROPERTIES POSITION_INDEPENDENT_CODE ON)
 endif()
 
-target_link_libraries(MagnumDebugTools
-    Magnum
-    MagnumMeshTools
-    MagnumPrimitives
-    MagnumShaders)
+target_link_libraries(MagnumDebugTools Magnum)
 if(WITH_SCENEGRAPH)
     target_link_libraries(MagnumDebugTools MagnumSceneGraph)
 endif()
 if(WITH_SHAPES)
-    target_link_libraries(MagnumDebugTools MagnumShapes)
+    target_link_libraries(MagnumDebugTools MagnumShapes MagnumPrimitives)
+endif()
+if(WITH_SCENEGRAPH OR WITH_SHAPES)
+    target_link_libraries(MagnumDebugTools
+        MagnumMeshTools
+        MagnumShaders)
 endif()
 
 install(TARGETS MagnumDebugTools