Changes necessary for shared library linking to succeed.

diff --git a/src/Makefile.in b/src/Makefile.in
index 9534473..12411bf 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -73,7 +73,7 @@ LTCOMPILE = $(LIBTOOL) --mode=compile --tag=CC $(CC) $(DEFS) \
 	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
 	$(AM_CFLAGS) $(CFLAGS)
 CCLD = $(CC)
-LINK = $(LIBTOOL) --mode=link --tag=CC $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+LINK = HDF4_USE_SHLIB=yes $(LIBTOOL) --mode=link --tag=CC $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
 	$(AM_LDFLAGS) $(LDFLAGS) -o $@
 SOURCES = $(libhdfeos_la_SOURCES)
 DIST_SOURCES = $(libhdfeos_la_SOURCES)
@@ -125,8 +125,6 @@ INSTALL_PROGRAM = @INSTALL_PROGRAM@
 INSTALL_SCRIPT = @INSTALL_SCRIPT@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 
-# Set LDFLAGS to alow the HDF-EOS library to use extern variables from HDF4
-LDFLAGS = -Wl,-single_module
 LIBOBJS = @LIBOBJS@
 LIBS = @LIBS@
 LIBTOOL = @LIBTOOL@

stomized Guix</td><td class='sub right'></td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=4467c2d1dcbf88e26767616a49ed49de8ee48f57'>refs</a><a class='active' href='/guix/log/etc/guix-daemon.conf.in'>log</a><a href='/guix/tree/etc/guix-daemon.conf.in?id=4467c2d1dcbf88e26767616a49ed49de8ee48f57'>tree</a><a href='/guix/commit/etc/guix-daemon.conf.in?id=4467c2d1dcbf88e26767616a49ed49de8ee48f57'>commit</a><a href='/guix/diff/etc/guix-daemon.conf.in?id=4467c2d1dcbf88e26767616a49ed49de8ee48f57'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/etc/guix-daemon.conf.in'>
<input type='hidden' name='id' value='4467c2d1dcbf88e26767616a49ed49de8ee48f57'/><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=4467c2d1dcbf88e26767616a49ed49de8ee48f57'>root</a>/<a href='/guix/log/etc?id=4467c2d1dcbf88e26767616a49ed49de8ee48f57'>etc</a>/<a href='/guix/log/etc/guix-daemon.conf.in?id=4467c2d1dcbf88e26767616a49ed49de8ee48f57'>guix-daemon.conf.in</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/etc/guix-daemon.conf.in?id=4467c2d1dcbf88e26767616a49ed49de8ee48f57&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2017-03-06 13:25:51 -0500'>2017-03-06</span></td><td><a href='/guix/commit/etc/guix-daemon.conf.in?id=613d0895b92c677e0639d5e77c55043e38e020c8'>build: Don't embed absolute paths in .service and .conf service files.</a><span class='msg-avail'>...<span class='msg-tooltip'>Otherwise, users will be stuck running an old copy of guix and the guix-daemon
if they copy the service files instead of symlinking them.

* etc/guix-daemon.conf.in, etc/guix-daemon.service.in, etc/guix-publish.conf.in,
etc/guix-publish.service.in: Expand @localstatedir@ instead of @bindir@.
* nix/local.mk (etc/guix-%.service, etc/guix-%.conf): Use @localstatedir@
instead of @bindir@.
</span></span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2015-11-26 23:21:09 +0100'>2015-11-26</span></td><td><a href='/guix/commit/etc/guix-daemon.conf.in?id=ad227484c3e1dc85488be76a23128e77ad0b33ff'>Add 'guix-daemon.conf' job for Upstart.</a><span class='msg-avail'>...<span class='msg-tooltip'>* etc/guix-daemon.conf.in: New file.
* daemon.am (CLEANFILES): Add etc/guix-daemon.conf.
  (upstartjobdir, nodist_upstartjob_DATA): New variables.
  (EXTRA_DIST): Add etc/guix-daemon.conf.in.
* doc/guix.texi (Binary Installation, Build Environment Setup): Mention
  'guix-daemon.conf'.

Signed-off-by: Mario Daniel Ruiz Saavedra &lt;desiderantes@rocketmail.com&gt;
Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Mario Daniel Ruiz Saavedra</td></tr>