03/04: build: Default to berlin.guixsd.org substitutes on aarch64.

[Ludovic Courtès]

civodul pushed a commit to branch master
in repository guix.

commit bdbece905538caf68817066126cb9b6b68ba9fd4
Author: Ludovic Courtès <address@hidden>
Date:   Mon Mar 5 10:37:17 2018 +0100

    build: Default to berlin.guixsd.org substitutes on aarch64.
    
    Suggested by Efraim Flashner <address@hidden>.
    
    * config-daemon.ac: Set 'guix_substitute_urls' to berlin.guixsd.org on
    aarch64.
---
 config-daemon.ac | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/config-daemon.ac b/config-daemon.ac
index 825b597..6cf65be 100644
--- a/config-daemon.ac
+++ b/config-daemon.ac
@@ -120,7 +120,15 @@ if test "x$guix_build_daemon" = "xyes"; then
 
   dnl Determine the appropriate default list of substitute URLs (GnuTLS
   dnl is required so we can default to 'https'.)
-  guix_substitute_urls="https://mirror.hydra.gnu.org";
+  case "x$host_cpu" in
+    xaarch64)
+      # Currently only berlin.guixsd.org provides aarch64 binaries.
+      guix_substitute_urls="https://berlin.guixsd.org";
+      ;;
+    *)
+      guix_substitute_urls="https://mirror.hydra.gnu.org";
+      ;;
+  esac
 
   AC_MSG_CHECKING([for default substitute URLs])
   AC_MSG_RESULT([$guix_substitute_urls])