gnu: python-cloudpickle: Update to 1.3.0.

[jackhill/guix/guix.git] / build-aux / build-self.scm

diff --git a/build-aux/build-self.scm b/build-aux/build-self.scm
index f2e785b..f86c79f 100644 (file)
--- a/build-aux/build-self.scm
+++ b/build-aux/build-self.scm
@@ -286,7 +286,8 @@ interface (FFI) of Guile.")
                                                     #:select? select?))
     (gexp->script "compute-guix-derivation"
                   #~(begin
-                      (use-modules (ice-9 match))
+                      (use-modules (ice-9 match)
+                                   (ice-9 threads))
 
                       (eval-when (expand load eval)
                         ;; (gnu packages …) modules are going to be looked up
@@ -407,7 +408,11 @@ files."
                       (major  ((store-lift nix-server-major-version)))
                       (minor  ((store-lift nix-server-minor-version))))
     (mbegin %store-monad
-      (show-what-to-build* (list build))
+      ;; Before 'with-build-handler' was implemented and used, we had to
+      ;; explicitly call 'show-what-to-build*'.
+      (munless (module-defined? (resolve-module '(guix store))
+                                'with-build-handler)
+        (show-what-to-build* (list build)))
       (built-derivations (list build))
 
       ;; Use the port beneath the current store as the stdin of BUILD.  This