bash: use default PATH in FHS environments

If bash is executed within an environment where PATH is not set, it uses
the DEFAULT_PATH_VALUE compiled into bash to set PATH. In nixpkgs we set
this to /no-such-path by default. This makes sense in a nixpkgs/NixOS
environment since paths like /bin or /usr/bin should not be used.
However, when bash is used inside an FHS environment, this produces
results that differ from distributions which follow the FHS standard.

Before this change:
$ steam-run env -i /bin/bash -c 'echo $PATH'
/no-such-path

After this change:
$ steam-run env -i /bin/bash -c 'echo $PATH'
/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:.

1 files changed, 1 insertions, 1 deletions

diff --git a/pkgs/build-support/build-fhs-userenv/env.nix b/pkgs/build-support/build-fhs-userenv/env.nix
index 44c8adb06e1..abf577baa2d 100644
--- a/pkgs/build-support/build-fhs-userenv/env.nix
+++ b/pkgs/build-support/build-fhs-userenv/env.nix
@@ -45,7 +45,7 @@ let
   basePkgs = with pkgs;
     [ glibcLocales
       (if isMultiBuild then glibc_multi else glibc)
-      (toString gcc.cc.lib) bashInteractive coreutils less shadow su
+      (toString gcc.cc.lib) bashInteractiveFHS coreutils less shadow su
       gawk diffutils findutils gnused gnugrep
       gnutar gzip bzip2 xz
     ];