Do not pass -dynamic-linker to linker when !shared.
Fixes <http://bugs.gnu.org/20102>.

ARM 'link' spec issue reported at
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65711 and
https://gcc.gnu.org/ml/gcc-patches/2015-04/msg01387.html.

Patch by Ludovic Courtès <ludo@gnu.org>.

--- gcc-4.8.4/gcc/config/arm/linux-elf.h.orig	2015-04-08 20:31:20.376900478 +0200
+++ gcc-4.8.4/gcc/config/arm/linux-elf.h	2015-04-08 20:31:36.437014437 +0200
@@ -65,7 +65,7 @@
    %{symbolic:-Bsymbolic} \
    %{!static: \
      %{rdynamic:-export-dynamic} \
-     -dynamic-linker " GNU_USER_DYNAMIC_LINKER "} \
+     %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
    -X \
    %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
    SUBTARGET_EXTRA_LINK_SPEC
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<tr><td><span title='2018-06-22 01:07:20 +0200'>2018-06-22</span></td><td><a href='/guix/commit/gnu/packages/patches/nyx-show-header-stats-with-python3.patch?id=8edebd3207335aff15081458e895104ac9f45d3d'>gnu: nyx: Show header stats.</a><span class='msg-avail'>...<span class='msg-tooltip'>This is a follow-up to commit 18ab54d4a2aaf932b14e69c30650c1d2c4db33c7
and fixes a regression introduced by Nyx 2.0.4 + Python 3.

* gnu/packages/tor.scm (nyx)[source]: Add patch.
* gnu/packages/patches/nyx-show-header-stats-with-python3.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>