qscintilla (#16182)

* qscintilla

* Revert "qscintilla"

This reverts commit 00bd00ea3c.

* Move logic to qt package.

* flake8

Co-authored-by: Elizabeth Fischer <elizabeth.fischer@alaska.edu>

var/spack/repos/builtin/packages/qt/package.py

@@ -222,6 +222,9 @@ def setup_run_environment(self, env):
 
     def setup_dependent_build_environment(self, env, dependent_spec):
         env.set('QTDIR', self.prefix)
+        # https://riverbankcomputing.com/pipermail/qscintilla/2015-January/001012.html
+        env.set('QMAKEFEATURES', join_path(
+            dependent_spec.stage.source_path, 'Qt4Qt5', 'features'))
 
     def setup_dependent_package(self, module, dependent_spec):
         module.qmake = Executable(join_path(self.spec.prefix.bin, 'qmake'))