Build with libtirpc on all architectures because glibc no longer provides
SunRPC support.

diff --git a/configure b/configure
--- a/configure
+++ b/configure
@@ -23635,10 +23635,13 @@
   *-pc-cygwin*)
     LIBS="$LIBS -ltirpc"
     CPPFLAGS="$CPPFLAGS -I/usr/include/tirpc"  ;;
+  *-linux-gnu)
+    LIBS="$LIBS -ltirpc"
+    CPPFLAGS="$CPPFLAGS"  ;;
   *) ;;
 esac
 
-if test "X$BUILD_XDR" != "Xyes"; then
+if test "X$BUILD_XDR" = "Xyes"; then
     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
 
@@ -23693,9 +23696,9 @@
   ## but we need to make sure that it is present on the system. Do that here,
   ## The SunRPC of the glibc has been replaced by a TI-RPC (Transport Independent RPC) library for IPv6 support
   case "$host" in
-    *-pc-cygwin*)
+    *)
       HAVE_RPC="yes"
-      ac_fn_c_check_header_mongrel "$LINENO" "rpc.h" "ac_cv_header_rpc_h" "$ac_includes_default"
+      ac_fn_c_check_header_mongrel "$LINENO" "rpc/rpc.h" "ac_cv_header_rpc_h" "$ac_includes_default"
 if test "x$ac_cv_header_rpc_h" = xyes; then :
   :
 else
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<div class='path'>path: <a href='/guix/log/?id=ce9fe5f9a27a1cefb40f91aa8eb4c8b690f3e13f'>root</a>/<a href='/guix/log/nix?id=ce9fe5f9a27a1cefb40f91aa8eb4c8b690f3e13f'>nix</a>/<a href='/guix/log/nix/local.mk?id=ce9fe5f9a27a1cefb40f91aa8eb4c8b690f3e13f'>local.mk</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/nix/local.mk?id=ce9fe5f9a27a1cefb40f91aa8eb4c8b690f3e13f&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-03-30 10:29:33 +0300'>2021-03-30</span></td><td><a href='/guix/commit/nix/local.mk?id=aed51ecea87f9b5045cc888cd1d9653a27813164'>gnu: guix: Fix openrc init scripts.</a><span class='msg-avail'>...</span></td><td>zimoun</td></tr>
<tr><td><span title='2020-10-27 18:00:29 +0100'>2020-10-27</span></td><td><a href='/guix/commit/nix/local.mk?id=c40ad1df60e81e2089780ee884504729c7a66695'>maint: Add 'etc/gnu-store.mount.in' to the distribution.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-09-17 14:10:42 +0200'>2020-09-17</span></td><td><a href='/guix/commit/nix/local.mk?id=cabac732deffafc796537658a6c33c6c4aec821e'>guix-install.sh: Support OpenRC.</a><span class='msg-avail'>...</span></td><td>Morgan Smith</td></tr>
<tr><td><span title='2020-06-27 23:42:20 +0200'>2020-06-27</span></td><td><a href='/guix/commit/nix/local.mk?id=8dc6c387852bb9505be44567a5f56913633cc23a'>daemon: Remove OpenSSL hash compatibility wrappers.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-05-23 15:37:58 +0200'>2020-05-23</span></td><td><a href='/guix/commit/nix/local.mk?id=9927e5b11b88a85fffb959b515430c2312c8dff3'>build: Add a comment above the sysvinit section.</a><span class='msg-avail'>...</span></td><td>Vincent Legoll</td></tr>
<tr><td><span title='2020-05-17 14:12:35 +0200'>2020-05-17</span></td><td><a href='/guix/commit/nix/local.mk?id=ebbf91542269fcb36d64928d4a4992e6afbf2acf'>etc: Install mount unit only if it exists.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-05-16 15:37:41 +0200'>2020-05-16</span></td><td><a href='/guix/commit/nix/local.mk?id=1a1faa78b0498fbb71f1533beb4b65817c1d3f2a'>etc: Add a systemd unit to bind-mount @storedir@ read-only.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-03-11 02:45:33 +0100'>2020-03-11</span></td><td><a href='/guix/commit/nix/local.mk?id=73fbe04107d38f4561636c74d28d7a4935cbb1ef'>Add system start-up files for guix-daemon.</a><span class='msg-avail'>...</span></td><td>Danny Milosavljevic</td></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/nix/local.mk?id=82f903e70f580c34503052245625354d2f097d7e'>daemon: Remove 'NIX_LIBEXEC_DIR'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/nix/local.mk?id=f6919ebdc6b0ce0286814cc6ab0564b1a4c67f5f'>daemon: Run 'guix substitute' directly and assume a single substituter.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/nix/local.mk?id=bc69ea2d605810cc32e13ed03d5848b8dc358b61'>daemon: Run 'guix offload' directly.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/nix/local.mk?id=9fcc35c51fd579b3bb7b4f61cba6973675c3922c'>daemon: Run 'guix perform-download' directly.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/nix/local.mk?id=0c684b7edfacada4f576855dbb09291f04a84fa2'>daemon: Run 'guix authenticate' directly.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-09-08 11:49:24 +0200'>2019-09-08</span></td><td><a href='/guix/commit/nix/local.mk?id=2e3e5d21988fc2cafb2a9eaf4b00976ea425629d'>daemon: Invoke 'guix gc --list-busy' instead of 'list-runtime-roots'.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>