Fix build

src/openrct2-ui/drawing/engines/opengl/OpenGLShaderProgram.cpp

@@ -90,7 +90,7 @@ std::string OpenGLShader::ReadSourceCode(const std::string &path)
     }
 
     auto fileData = std::string((size_t)fileLength + 1, '\0');
-    fs.Read(fileData.data(), fileLength);
+    fs.Read((void *)fileData.data(), fileLength);
     return fileData;
 }
 

src/openrct2-ui/windows/Changelog.cpp

@@ -240,7 +240,8 @@ static bool window_changelog_read_file()
         return false;
     }
 
-    auto * start = _changelogText.data();
+    // Non-const cast required until C++17 is enabled
+    auto * start = (char *)_changelogText.data();
     if (_changelogText.size() >= 3 && utf8_is_bom(start))
     {
         start += 3;

src/openrct2-ui/windows/EditorObjectSelection.cpp

@@ -1201,7 +1201,7 @@ static void window_editor_object_selection_set_pressed_tab(rct_window *w)
 static sint32 get_object_from_object_selection(uint8 object_type, sint32 y)
 {
     sint32 listItemIndex = y / 12;
-    if (listItemIndex < 0 || listItemIndex >= _listItems.size())
+    if (listItemIndex < 0 || (size_t)listItemIndex >= _listItems.size())
         return -1;
 
     return listItemIndex;