glvis: fix spack issue #42839 (#43369)

* glvis: fix spack issue #42839

* add issue link

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

@@ -154,6 +154,9 @@ def common_args(self):
             "CONFIG_MK={0}".format(self.spec["mfem"].package.config_mk),
         ]
 
+        # https://github.com/spack/spack/issues/42839
+        result.append("CPPFLAGS=-DGLEW_NO_GLU")
+
         if self.spec.satisfies("@4.0:"):
             # Spack will inject the necessary include dirs and link paths via
             # its compiler wrapper, so we can skip them: