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-rw-r--r--config-daemon.ac29
1 files changed, 14 insertions, 15 deletions
diff --git a/config-daemon.ac b/config-daemon.ac
index 80d84cbdbc..6cf65bef1d 100644
--- a/config-daemon.ac
+++ b/config-daemon.ac
@@ -118,30 +118,29 @@ if test "x$guix_build_daemon" = "xyes"; then
   dnl Check for <linux/fs.h> (for immutable file support).
   AC_CHECK_HEADERS([linux/fs.h])
 
-  dnl Determine the appropriate default list of substitute URLs.
-  GUILE_MODULE_AVAILABLE([have_gnutls], [(gnutls)])
-  if test "x$have_gnutls" = "xyes"; then
-    guix_substitute_urls="https://mirror.hydra.gnu.org"
-  else
-    AC_MSG_WARN([GnuTLS is missing, substitutes will be downloaded in the clear])
-    guix_substitute_urls="http://mirror.hydra.gnu.org"
-  fi
+  dnl Determine the appropriate default list of substitute URLs (GnuTLS
+  dnl is required so we can default to 'https'.)
+  case "x$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])
 
   AC_DEFINE_UNQUOTED([GUIX_SUBSTITUTE_URLS], ["$guix_substitute_urls"],
     [Default list of substitute URLs used by 'guix-daemon'.])
 
-  dnl Check whether the 'offload' build hook can be built (uses
-  dnl 'restore-file-set', which requires unbuffered custom binary input
-  dnl ports from Guile >= 2.0.10.)
-  GUIX_CHECK_UNBUFFERED_CBIP
-
   dnl Check for Guile-SSH, which is required by 'guix offload'.
   GUIX_CHECK_GUILE_SSH
 
-  case "x$ac_cv_guix_cbips_support_setvbuf$guix_cv_have_recent_guile_ssh" in
-    xyesyes)
+  case "x$guix_cv_have_recent_guile_ssh" in
+    xyes)
       guix_build_daemon_offload="yes"
       AC_DEFINE([HAVE_DAEMON_OFFLOAD_HOOK], [1],
 	[Define if the daemon's 'offload' build hook is being built (requires Guile-SSH).])