devShell: Fix errors with environment variables

Previous code assumed that $MANPATH always exists Change-Id: I5a4d012045ba6ff9086373b3f46a75d82285d393
2024-07-10 14:22:47 +02:00
parent fa92f41a18
commit 3dced96741
1 changed files with 2 additions and 2 deletions
@@ -493,9 +493,9 @@ stdenv.mkDerivation (finalAttrs: {
                return
              fi

-              PATH=$prefix/bin:$PATH
+              PATH=$prefix/bin''${PATH:+:''${PATH}}
              unset PYTHONPATH
-              export MANPATH=$out/share/man:$MANPATH
+              export MANPATH=$out/share/man''${MANPATH:+:''${MANPATH}}

              # Make bash completion work.
              XDG_DATA_DIRS+=:$out/share