New upstream version 5.1.1

CHANGES.md

+## 5.1.1 (2024-11-26)
+
+- Fixed a rare, architecture-specific GC bug in `lo_seek`.
+
 ## 5.1.0 (2024-11-04)
 
 - Made Postgresql.null a now unique, empty string.

dune-project

 (lang dune 2.7)
 (name postgresql)
-(version 5.1.0)
+(version 5.1.1)
 
 (generate_opam_files true)
 

postgresql.opam

-version: "5.1.0"
+version: "5.1.1"
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
 synopsis: "Bindings to the PostgreSQL library"

src/postgresql_stubs.c

@@ -1583,7 +1583,6 @@ CAMLprim intnat lo_lseek_stub(value v_conn, intnat fd, intnat pos,
   PGconn *conn = get_conn(v_conn);
   intnat res;
   int whence;
-  caml_enter_blocking_section();
   switch (Int_val(v_whence)) {
   case 0:
     whence = SEEK_SET;
@@ -1595,6 +1594,7 @@ CAMLprim intnat lo_lseek_stub(value v_conn, intnat fd, intnat pos,
     whence = SEEK_END;
     break;
   }
+  caml_enter_blocking_section();
   res = lo_lseek(conn, fd, pos, whence);
   caml_leave_blocking_section();
   CAMLreturn(res);