plv8: unbreak build, bump to version 2.3.8

ee58a5b30d6e60407b44fbb02ddade6c20fd8763 broke the plv8 build because it
upgraded the v8_6_x expression everywhere to the 6.9 branch, which came
with API changes. Notably, it seems plv8 only supports up-to v8 6.4.x at
this time.

This keeps a copy of the plv8_6_x expression inside the same directory
as the other v8 versions (so patches, etc are easy to apply), but it is
not exposed to the top-level of all-packages.nix.

Signed-off-by: Austin Seipp <aseipp@pobox.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3fb3351f981a..9709ad871041 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -11699,7 +11699,9 @@ with pkgs;
   pgroonga = callPackage ../servers/sql/postgresql/pgroonga {};
 
   plv8 = callPackage ../servers/sql/postgresql/plv8 {
-    v8 = v8_6_x;
+    v8 = callPackage ../development/libraries/v8/plv8_6_x.nix {
+      inherit (python2Packages) python;
+    };
   };
 
   phonon = callPackage ../development/libraries/phonon {};