gdbm: enable parallel building and use pname

pkgs/development/libraries/gdbm/default.nix

@@ -1,12 +1,14 @@
 { stdenv, lib, fetchurl }:
 
 stdenv.mkDerivation rec {
-  name = "gdbm-1.18.1";
+  pname = "gdbm";
+  version = "1.18.1";
+
   # FIXME: remove on update to > 1.18.1
   NIX_CFLAGS_COMPILE = if stdenv.cc.isClang then "-Wno-error=return-type" else null;
 
   src = fetchurl {
-    url = "mirror://gnu/gdbm/${name}.tar.gz";
+    url = "mirror://gnu/gdbm/${pname}-${version}.tar.gz";
     sha256 = "1p4ibds6z3ccy65lkmd6lm7js0kwifvl53r0fd759fjxgr917rl6";
   };
 
@@ -25,10 +27,12 @@ stdenv.mkDerivation rec {
       substituteInPlace tests/testsuite.at --replace \
         'm4_include([dbmfetch03.at])' ""
   '';
+
+  enableParallelBuilding = true;
   configureFlags = [ "--enable-libgdbm-compat" ];
 
-  postInstall = ''
   # create symlinks for compatibility
+  postInstall = ''
     install -dm755 $out/include/gdbm
     (
       cd $out/include/gdbm
@@ -40,9 +44,8 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "GNU dbm key/value database library";
-
-    longDescription =
-      '' GNU dbm (or GDBM, for short) is a library of database functions that
+    longDescription = ''
+       GNU dbm (or GDBM, for short) is a library of database functions that
        use extensible hashing and work similar to the standard UNIX dbm.
        These routines are provided to a programmer needing to create and
        manipulate a hashed database.
@@ -59,7 +62,6 @@ stdenv.mkDerivation rec {
        For compatibility with programs using old UNIX dbm function, the
        package also provides traditional dbm and ndbm interfaces.
       '';
-
     homepage = https://www.gnu.org/software/gdbm/;
     license = licenses.gpl3Plus;
     platforms = platforms.all;