Skip the nopic test on ARM and MIPS 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*)
   # 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:535: case \$host in
-hppa*|x86_64*|s390*)
+hppa*|x86_64*|s390*|arm*|mips*)
   # 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:535"
 ( $at_check_trace; case $host in
-hppa*|x86_64*|s390*)
+hppa*|x86_64*|s390*|arm*|mips*)
   # These hosts cannot use non-PIC shared libs
   exit 77 ;;
 *-solaris*|*-sunos*)
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<div class='path'>path: <a href='/guix/log/?id=c917c23e7295370e42c4aff40219a60066607378'>root</a>/<a href='/guix/log/tests?id=c917c23e7295370e42c4aff40219a60066607378'>tests</a>/<a href='/guix/log/tests/system.scm?id=c917c23e7295370e42c4aff40219a60066607378'>system.scm</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/tests/system.scm?id=c917c23e7295370e42c4aff40219a60066607378&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2018-06-21 23:54:15 +0200'>2018-06-21</span></td><td><a href='/guix/commit/tests/system.scm?id=68a58775e071d4b0e000b93ad121b6e64d161b79'>system: Mapped devices needed for boot do not yield Shepherd services.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/31889&gt;.
Reported by Taylan Kammer &lt;taylanbayirli@gmail.com&gt;.

* gnu/system.scm (non-boot-file-system-service)[mapped-devices-for-boot]:
New variable.
Remove dependencies of FS that are members of MAPPED-DEVICES-FOR-BOOT.
(mapped-device-user): Rename to...
(mapped-device-users): ... this.  Use 'filter' instead of 'find'.
(operating-system-user-mapped-devices)
(operating-system-boot-mapped-devices): Use 'any
file-system-needed-for-boot?' instead of looking at the first user.
* tests/system.scm ("non-boot-file-system-service"): New test.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-05-28 13:24:19 +0200'>2018-05-28</span></td><td><a href='/guix/commit/tests/system.scm