dnl Determine the appropriate default list of substitute URLs (GnuTLS
dnl is required so we can default to 'https'.)
- guix_substitute_urls="https://ci.guix.gnu.org"
+ guix_substitute_urls="https://ci.guix.gnu.org https://bordeaux.guix.gnu.org"
AC_MSG_CHECKING([for default substitute URLs])
AC_MSG_RESULT([$guix_substitute_urls])