temporary linker error fix for the viewer

Former-commit-id: d88f1d0a3774e2183e3605e62dac94c8c81777a0

include/igl/viewer/Viewer.cpp

@@ -84,7 +84,7 @@ static int global_KMod = 0;
 
 static void glfw_mouse_press(GLFWwindow* window, int button, int action, int modifier)
 {
-  bool tw_used = 
+  bool tw_used =
 #ifdef IGL_VIEWER_WITH_NANOGUI
     __viewer->screen->mouseButtonCallbackEvent(button,action,modifier);
 #else
@@ -283,7 +283,7 @@ namespace viewer
     std::cout<<"igl_with_nanogui_defined_at_compile: "<<  igl_with_nanogui_defined_at_compile()  <<std::endl;
     std::cout<<"igl_with_nanogui_defined_at_include: "<<  igl_with_nanogui_defined_at_include()  <<std::endl;
     // First try to first assert
-    assert(igl_with_nanogui_defined_consistently() && 
+    assert(igl_with_nanogui_defined_consistently() &&
       "Must compile and include with IGL_VIEWER_WITH_NANOGUI defined consistently");
 #ifdef NDEBUG
     // Second print warning since it's hopeless that this will run if wrong.
@@ -629,11 +629,11 @@ namespace viewer
       center = data.V.colwise().sum()/data.V.rows();
     }
 
-    Eigen::Vector3f coord = 
+    Eigen::Vector3f coord =
       igl::project(
-        Eigen::Vector3f(center(0),center(1),center(2)), 
-        (core.view * core.model).eval(), 
-        core.proj, 
+        Eigen::Vector3f(center(0),center(1),center(2)),
+        (core.view * core.model).eval(),
+        core.proj,
         core.viewport);
     down_mouse_z = coord[2];
     down_rotation = core.trackball_angle;
@@ -1044,20 +1044,5 @@ namespace viewer
     launch_shut();
     return EXIT_SUCCESS;
   }
-  IGL_INLINE bool Viewer::igl_with_nanogui_defined_at_compile()
-  {
-#ifdef IGL_VIEWER_WITH_NANOGUI
-    return true;
-#else
-    return false;
-#endif
-  }
-  IGL_INLINE bool Viewer::igl_with_nanogui_defined_consistently()
-  {
-    return 
-      igl_with_nanogui_defined_at_compile() == 
-      igl_with_nanogui_defined_at_include();
-  }
 } // end namespace
 }
-

include/igl/viewer/Viewer.h

@@ -153,28 +153,10 @@ namespace viewer
     void* callback_key_down_data;
     void* callback_key_up_data;
 
-  public:
-
-    static IGL_INLINE bool igl_with_nanogui_defined_at_compile();
-    static IGL_INLINE bool igl_with_nanogui_defined_consistently();
-
   public:
       EIGEN_MAKE_ALIGNED_OPERATOR_NEW
   };
 
-  bool igl_with_nanogui_defined_at_include();
-#ifndef IGL_VIEWER_VIEWER_CPP
-  bool igl_with_nanogui_defined_at_include()
-  {
-    // this must be inlined here.
-#ifdef IGL_VIEWER_WITH_NANOGUI
-    return true;
-#else
-    return false;
-#endif
-  }
-#endif
-
 } // end namespace
 } // end namespace