Move all db4 packages to the default db5

pkgs/development/perl-modules/BerkeleyDB/default.nix

@@ -1,4 +1,4 @@
-{buildPerlPackage, fetchurl, db4}:
+{buildPerlPackage, fetchurl, db}:
 
 buildPerlPackage rec {
   name = "BerkeleyDB-0.54";
@@ -9,7 +9,7 @@ buildPerlPackage rec {
   };
 
   preConfigure = ''
-    echo "LIB = ${db4}/lib" > config.in
-    echo "INCLUDE = ${db4}/include" >> config.in
+    echo "LIB = ${db}/lib" > config.in
+    echo "INCLUDE = ${db}/include" >> config.in
   '';
 }

pkgs/development/perl-modules/DB_File/default.nix

@@ -1,4 +1,4 @@
-{fetchurl, buildPerlPackage, db4}:
+{fetchurl, buildPerlPackage, db}:
 
 buildPerlPackage rec {
   name = "DB_File-1.831";
@@ -12,8 +12,8 @@ buildPerlPackage rec {
     cat > config.in <<EOF
     PREFIX = size_t
     HASH = u_int32_t
-    LIB = ${db4}/lib
-    INCLUDE = ${db4}/include
+    LIB = ${db}/lib
+    INCLUDE = ${db}/include
     EOF
   '';