cmd/shellenv.sh: handle undefined MANPATH and set -eu.

See Homebrew#17633 (comment)
ctaintor · Sep 4, 2024 · 0a99b3a · 0a99b3a
1 parent 6a8466d
commit 0a99b3a
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Library/Homebrew/cmd/shellenv.sh b/Library/Homebrew/cmd/shellenv.sh
@@ -57,7 +57,7 @@ homebrew-shellenv() {
       echo "export HOMEBREW_CELLAR=\"${HOMEBREW_CELLAR}\";"
       echo "export HOMEBREW_REPOSITORY=\"${HOMEBREW_REPOSITORY}\";"
       echo "export PATH=\"${HOMEBREW_PREFIX}/bin:${HOMEBREW_PREFIX}/sbin\${PATH+:\$PATH}\";"
-      echo "[ -z \"\${MANPATH}\" ] || export MANPATH=\":\${MANPATH#:}\";"
+      echo "[ -z \"\${MANPATH-}\" ] || export MANPATH=\":\${MANPATH#:}\";"
       echo "export INFOPATH=\"${HOMEBREW_PREFIX}/share/info:\${INFOPATH:-}\";"
       ;;
   esac