[Nix-dev] overriding gcc in dependencies.

[roconnor at theorem.ca]

openjade requires gcc33 to build.
openjade also requires opensp to build.

opensp doesn't require gcc33 to build.

How do I get openjade to use a version of opensp that uses gcc33?

Below I just inline a new derivation of opensp, but such cut and paste 
doesn't seem very modular.

Index: pkgs/top-level/all-packages.nix
===================================================================
--- pkgs/top-level/all-packages.nix     (revision 24054)
+++ pkgs/top-level/all-packages.nix     (working copy)
@@ -942,6 +942,11 @@

    openjade = callPackage ../tools/text/sgml/openjade {
      stdenv = overrideGCC stdenv gcc33;
+    /* we need to depend on a version of opensp compiled with the same 
version of gcc (libc?)
+       that openjade uses */
+    opensp = callPackage ../tools/text/sgml/opensp {
+      stdenv = overrideGCC stdenv gcc33;
+    };
    };

    openobex = callPackage ../tools/bluetooth/openobex { };



-- 
Russell O'Connor                                      <http://r6.ca/>
``All talk about `theft,''' the general counsel of the American Graphophone
Company wrote, ``is the merest claptrap, for there exists no property in
ideas musical, literary or artistic, except as defined by statute.''