03/07: ui: Disable '%fresh-auto-compile' only for Guile 2.2.3.

[Ludovic Courtès]

civodul pushed a commit to branch master
in repository guix.

commit 92423868bc451600f8f3d93b638091d12b14b7aa
Author: Ludovic Courtès <address@hidden>
Date:   Mon Jan 15 15:43:53 2018 +0100

    ui: Disable '%fresh-auto-compile' only for Guile 2.2.3.
    
    Mitigates <https://bugs.gnu.org/29881>.
    Reported by Diego Nicola Barbato <address@hidden>.
    
    * guix/ui.scm (load*): Unset '%fresh-auto-compile' only on Guile 2.2.3.
---
 guix/ui.scm | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/guix/ui.scm b/guix/ui.scm
index 8951797..fb2380b 100644
--- a/guix/ui.scm
+++ b/guix/ui.scm
@@ -195,7 +195,16 @@ messages."
   (catch #t
     (lambda ()
       ;; XXX: Force a recompilation to avoid ABI issues.
-      ;; (set! %fresh-auto-compile #t)
+      ;;
+      ;; In 2.2.3, the bogus answer to <https://bugs.gnu.org/29226> was to
+      ;; ignore all available .go, not just those from ~/.cache, which in turn
+      ;; meant that we had to rebuild *everything*.  Since this is too costly,
+      ;; we have to turn auto '%fresh-auto-compile' with that version, at the
+      ;; risk of getting ABI breakage in the user's config file.  See
+      ;; <https://bugs.gnu.org/29881>.
+      (unless (string=? (version) "2.2.3")
+        (set! %fresh-auto-compile #t))
+
       (set! %load-should-auto-compile #t)
 
       (save-module-excursion