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*)
a><a href='/guix/refs/?id=89fbca9de61b97ad437aba96415865d67be617b8'>refs</a><a class='active' href='/guix/log/tests/base16.scm'>log</a><a href='/guix/tree/tests/base16.scm?id=89fbca9de61b97ad437aba96415865d67be617b8'>tree</a><a href='/guix/commit/tests/base16.scm?id=89fbca9de61b97ad437aba96415865d67be617b8'>commit</a><a href='/guix/diff/tests/base16.scm?id=89fbca9de61b97ad437aba96415865d67be617b8'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/base16.scm'>
<input type='hidden' name='id' value='89fbca9de61b97ad437aba96415865d67be617b8'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=89fbca9de61b97ad437aba96415865d67be617b8'>root</a>/<a href='/guix/log/tests?id=89fbca9de61b97ad437aba96415865d67be617b8'>tests</a>/<a href='/guix/log/tests/base16.scm?id=89fbca9de61b97ad437aba96415865d67be617b8'>base16.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/base16.scm?id=89fbca9de61b97ad437aba96415865d67be617b8&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2017-03-16 22:50:14 +0100'>2017-03-16</span></td><td><a href='/guix/commit/tests/base16.scm?id=4c0c4db0702048488a9712dbba7cad862c667d54'>utils: Move base16 procedures to (guix base16).</a><span class='msg-avail'>...<span class='msg-tooltip'>* guix/utils.scm (bytevector-&gt;base16-string, base16-string-&gt;bytevector):
Move to...
* guix/base16.scm: ... here.  New file.
* tests/utils.scm ("bytevector-&gt;base16-string-&gt;bytevector"): Move to...
* tests/base16.scm: ... here.  New file.
* Makefile.am (MODULES): Add guix/base16.scm.
(SCM_TESTS): Add tests/base16.scm.
* build-aux/download.scm, guix/derivations.scm,
guix/docker.scm, guix/import/snix.scm, guix/pk-crypto.scm,
guix/scripts/authenticate.scm, guix/scripts/download.scm,
guix/scripts/hash.scm, guix/store.scm, tests/hash.scm,
tests/pk-crypto.scm: Adjust imports accordingly.
</span></span></td><td>Ludovic Courtès</td></tr>