Patch taken from the Sage packaging system.

diff -Naur lcalc-1.23-vanilla/include/Ldirichlet_series.h lcalc-1.23-fixed-gcc.4.9/include/Ldirichlet_series.h
--- lcalc-1.23-vanilla/include/Ldirichlet_series.h	2012-08-08 23:21:55.000000000 +0200
+++ lcalc-1.23-fixed-gcc.4.9/include/Ldirichlet_series.h	2014-04-21 14:37:59.027464849 +0200
@@ -43,7 +43,7 @@
  //XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 template <class ttype>
 Complex L_function <ttype>::
-dirichlet_series(Complex s, long long N=-1)
+dirichlet_series(Complex s, long long N)
 {
     Complex z=0.;
     long long m,n;
diff -Naur lcalc-1.23-vanilla/include/L.h lcalc-1.23-fixed-gcc.4.9/include/L.h
--- lcalc-1.23-vanilla/include/L.h	2012-08-08 23:21:55.000000000 +0200
+++ lcalc-1.23-fixed-gcc.4.9/include/L.h	2014-04-21 14:32:04.003467348 +0200
@@ -491,7 +491,7 @@
 
     //#include "Ldirichlet_series.h" //for computing Dirichlet series
     Complex partial_dirichlet_series(Complex s, long long N1, long long N2);
-    Complex dirichlet_series(Complex s, long long N);
+    Complex dirichlet_series(Complex s, long long N=-1LL);
 
     //#include "Ltaylor_series.h" //for computing taylor series for Dirichlet series
     //void compute_taylor_series(int N, int K, Complex s_0, Complex *series);
ree</a><a href='/guix/commit/gnu/services/nix.scm?id=1b7f05f72cd57980e5292b7f0772d65e76e4fc48'>commit</a><a href='/guix/diff/gnu/services/nix.scm?id=1b7f05f72cd57980e5292b7f0772d65e76e4fc48'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/services/nix.scm'>
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<div class='path'>path: <a href='/guix/log/?id=1b7f05f72cd57980e5292b7f0772d65e76e4fc48'>root</a>/<a href='/guix/log/gnu?id=1b7f05f72cd57980e5292b7f0772d65e76e4fc48'>gnu</a>/<a href='/guix/log/gnu/services?id=1b7f05f72cd57980e5292b7f0772d65e76e4fc48'>services</a>/<a href='/guix/log/gnu/services/nix.scm?id=1b7f05f72cd57980e5292b7f0772d65e76e4fc48'>nix.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/gnu/services/nix.scm?id=1b7f05f72cd57980e5292b7f0772d65e76e4fc48&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-11-30 01:08:55 +0100'>2021-11-30</span></td><td><a href='/guix/commit/gnu/services/nix.scm?id=892f1b7273d57b25940700877a02618fe826cc08'>services: Accept &lt;inferior-package&gt;s in lieu of &lt;package&gt;s.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/services/authentication.scm (fprintd-configuration)
(nslcd-configuration): Substitute file-like objects for package ones.
* gnu/services/cgit.scm (cgit-configuration, opaque-cgit-configuration):
Likewise.
* gnu/services/cups.scm (package-list?, cups-configuration): Likewise.
* gnu/services/dns.scm (verify-knot-configuration)
(ddclient-configuration): Likewise.
* gnu/services/docker.scm (docker-configuration): Likewise.
* gnu/services/file-sharing.scm (transmission-daemon-configuration): Likewise.
* gnu/services/getmail.scm (getmail-configuration): Likewise.
* gnu/services/mail.scm (dovecot-configuration)
(opaque-dovecot-configuration): Likewise.
* gnu/services/messaging.scm (prosody-configuration)
(opaque-prosody-configuration): Likewise.
* gnu/services/monitoring.scm (zabbix-server-configuration)
(zabbix-agent-configuration): Likewise.
* gnu/services/networking.scm (opendht-configuration): Likewise.
* gnu/services/pm.scm (tlp-configuration): Likewise.
* gnu/services/telephony.scm (jami-configuration): Likewise.
* gnu/services/virtualization.scm (libvirt-configuration)
(qemu-guest-agent-configuration): Likewise.
* gnu/services/vpn.scm (openvpn-client-configuration): Likewise.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2021-04-26 20:03:55 +0300'>2021-04-26</span></td><td><a href='/guix/commit/gnu/services/nix.scm?id=43a7724040560d35e9e3a19bd1cfdb7e5c4c4711'>services: nix: Add /bin/sh to build-sandbox-paths.</a><span class='msg-avail'>...<span class='msg-tooltip'>Fixes &lt;https://bugs.gnu.org/46297&gt;.

* gnu/services/nix.scm (nix-service-etc): Add /bin/sh to build-sandbox-paths.
</span></span></td><td>Oleg Pykhalov</td></tr>
<tr><td><span title='2020-12-06 17:48:48 +0800'>2020-12-06</span></td><td><a href='/guix/commit/gnu/services/nix.scm?id=8e73bf754f95fac5a383b90405e741d1cf1aaeb9'>services: nix: Move nix.conf generation to etc-service-type.</a><span class='msg-avail'>...<span class='msg-tooltip'>/etc/nix/nix.conf is a static file doesn't need rebuild on every boot.

* gnu/services/nix.scm (nix-activation): Don't create /etc/nix/nix.conf.
(nix-service-etc): New function.
(nix-service-type): New service-extension "nix-service-etc" to etc-service-type.

Signed-off-by: 宋文武 &lt;iyzsong@member.fsf.org&gt;
</span></span></td><td>Zhu Zihao</td></tr>