Skip the nopic test on ARM, MIPS and RISC-V systems.

--- libtool-2.4.6/tests/demo.at.orig	2015-01-16 13:52:04.000000000 -0500
+++ libtool-2.4.6/tests/demo.at	2015-02-16 10:48:51.435851966 -0500
@@ -510,7 +510,7 @@
 AT_SETUP([force non-PIC objects])
 
 AT_CHECK([case $host in
-hppa*|x86_64*|s390*)
+hppa*|x86_64*|s390*|arm*|mips*|riscv*)
   # These hosts cannot use non-PIC shared libs
   exit 77 ;;
 *-solaris*|*-sunos*)
--- libtool-2.4.6/tests/testsuite.orig	2015-02-15 11:15:25.000000000 -0500
+++ libtool-2.4.6/tests/testsuite	2015-02-16 10:50:58.736483216 -0500
@@ -8741,7 +8741,7 @@
 
 { set +x
 $as_echo "$at_srcdir/demo.at:513: case \$host in
-hppa*|x86_64*|s390*)
+hppa*|x86_64*|s390*|arm*|mips*|riscv*)
   # These hosts cannot use non-PIC shared libs
   exit 77 ;;
 *-solaris*|*-sunos*)
@@ -8766,7 +8766,7 @@
 "
 at_fn_check_prepare_notrace 'a `...` command substitution' "demo.at:513"
 ( $at_check_trace; case $host in
-hppa*|x86_64*|s390*)
+hppa*|x86_64*|s390*|arm*|mips*|riscv*)
   # These hosts cannot use non-PIC shared libs
   exit 77 ;;
 *-solaris*|*-sunos*)
 href='/guix/refs/?id=97d97d7da1f5b500b2b76210131ca6adff6a1e80'>refs</a><a class='active' href='/guix/log/nix/nix-daemon'>log</a><a href='/guix/tree/nix/nix-daemon?id=97d97d7da1f5b500b2b76210131ca6adff6a1e80'>tree</a><a href='/guix/commit/nix/nix-daemon?id=97d97d7da1f5b500b2b76210131ca6adff6a1e80'>commit</a><a href='/guix/diff/nix/nix-daemon?id=97d97d7da1f5b500b2b76210131ca6adff6a1e80'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/nix/nix-daemon'>
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<tr><td><span title='2021-04-03 22:08:33 +0200'>2021-04-03</span></td><td><a href='/guix/commit/nix/nix-daemon?id=222fff253c6c6a3d1def16ed90723d7f2c4f9b89'>daemon: Remove dead code.</a><span class='msg-avail'>...<span class='msg-tooltip'>Reported by Noisytoot on #guix.

* nix/nix-daemon/shared.hh (showManPage): Remove.
* nix/nix-daemon/nix-daemon.cc (printHelp, programId): Remove.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2021-03-17 12:03:23 +0100'>2021-03-17</span></td><td><a href='/guix/commit/nix/nix-daemon?id=bc3896db25c788c181c7bcd65754e7cd378e9d9f'>daemon: Correctly handle '--discover' with no value.</a><span class='msg-avail'>...<span class='msg-tooltip'>Previously, we'd get:

  $ guix-daemon --discover
  error: basic_string::_M_construct null not valid

* nix/nix-daemon/guix-daemon.cc (parse_opt): Change second argument to
'settings.set' to properly handle case where ARG is NULL.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-11-29 15:08:26 +0100'>2020-11-29</span></td><td><a href='/guix/commit/nix/nix-daemon?id=79f9dee3c4c0e6d21066f142116a537207ae7ba4'>Use substitute servers on the local network.</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/scripts/discover.scm: New file.
* Makefile.am (MODULES): Add it.
* nix/nix-daemon/guix-daemon.cc (options): Add "discover" option,
(parse-opt): parse it,
(main): start "guix discover" process when the option is set.
* guix/scripts/substitute.scm (%local-substitute-urls): New variable,
(substitute-urls): add it.
* gnu/services/base.scm (&lt;guix-configuration&gt;): Add "discover?"
field,
(guix-shepherd-service): honor it.
* doc/guix.texi (Invoking guix-daemon): Document "discover" option,
(Base Services): ditto.
</span></span></td><td>Mathieu Othacehe</td></tr>