treewide: *Phase(s)? variables are optional

If these aren't defined, the stdenv defaults are used in the `*Phase` case, or no extra phases are done, in the `*Phases` case.
2019-11-01 14:44:44 -04:00
parent 7eecf4f8fb
commit b7f4bda282
18 changed files with 24 additions and 24 deletions
@@ -20,7 +20,7 @@ xcbuildInstallPhase () {
 }

 buildPhase=xcbuildBuildPhase
-if [ -z "$installPhase" ]; then
+if [ -z "${installPhase-}" ]; then
    installPhase=xcbuildInstallPhase
 fi