[qt5] Add check for long path.

microsoft · Jun 6, 2017 · 7b4d83c · 7b4d83c
1 parent 79fcaaf
commit 7b4d83c
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/ports/qt5/portfile.cmake b/ports/qt5/portfile.cmake
@@ -1,6 +1,12 @@
-include(${CMAKE_TRIPLET_FILE})
 include(vcpkg_common_functions)
 
+string(LENGTH "${CURRENT_BUILDTREES_DIR}" BUILDTREES_PATH_LENGTH)
+if(BUILDTREES_PATH_LENGTH GREATER 27)
+    message(WARNING "Qt5's buildsystem uses very long paths and may fail on your system.\n"
+        "We recommend moving vcpkg to a short path such as 'C:\\src\\vcpkg' or using the subst command."
+    )
+endif()
+
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR})
 include(configure_qt)
 include(install_qt)