Add forward declarations.

--- fastcap/src/mulSetup.c.orig	2015-07-22 13:55:21.592119775 +0200
+++ fastcap/src/mulSetup.c	2015-07-22 14:08:50.157688209 +0200
@@ -35,6 +35,14 @@
 
 #include "mulGlobal.h"
 
+static getnbrs(ssystem*);
+static linkcubes(ssystem*);
+static setMaxq(ssystem*);
+static getAllInter(ssystem*);
+static set_vector_masks(ssystem*);
+static indexkid(ssystem*, cube*, int*, int*);
+static int placeq(int, ssystem*, charge*);
+
 cube *cstack[1024];		/* Stack used in several routines. */
 
 /*
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<tr><td><span title='2018-03-23 08:28:55 +0100'>2018-03-23</span></td><td><a href='/guix/commit/gnu/packages/openldap.scm?id=590594a175191cc18b7fa53d8f08bb8be852d121'>gnu: openldap: Update to 2.4.46.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-02-19 18:16:16 +0100'>2018-02-19</span></td><td><a href='/guix/commit/gnu/packages/openldap.scm?id=ab36fb17e6971c768ff6cd3e7c54031d1fb8436b'>gnu: nss-pam-ldapd: Update to 0.9.9.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-07-10 14:37:53 -0400'>2017-07-10</span></td><td><a href='/guix/commit/gnu/packages/openldap.scm?id=c8eb2b8c60d954b4522555a5c75b7bb4be5a1a4d'>Merge branch 'master' into core-updates</a></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-07-09 20:10:37 +0200'>2017-07-09</span></td><td><a href='/guix/commit/gnu/packages/openldap.scm?id=4883f709074237f2ae5eed6cd7d826c1c59b13f6'>gnu: nss-pam-ldapd: Update to 0.9.8.</a><span class='msg-avail'>...</span></td><td>Ricardo Wurmus</td></tr>
<tr><td><span title='2017-06-04 14:57:59 -0400'>2017-06-04</span></td><td><a href='/guix/commit/gnu/packages/openldap.scm?id=4f493cba06b97de756123b3855ea52dcf1ad3555'>gnu: openldap: Provide path to cyrus-sasl for libtool.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-06-04 14:57:59 -0400'>2017-06-04</span></td><td><a href='/guix/commit/gnu/packages/openldap.scm?id=c9dba6c114580b0fabdb46bb9621c568c1958804'>gnu: openldap: Use modify-phases.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-06-04 14:57:59 -0400'>2017-06-04</span></td><td><a href='/guix/commit/gnu/packages/openldap.scm?id=47415332d70cd9166b0914ce43018ae57083c120'>gnu: openldap: Update to 2.4.45.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>
<tr><td><span title='2017-05-30 18:15:23 -0400'>2017-05-30</span></td><td><a href='/guix/commit/gnu/packages/openldap.scm?id=b0415c0361606d8d43cdc0841ad9cf74e1079861'>gnu: openldap: Fix CVE-2017-9287.</a><span class='msg-avail'>...</span></td><td>Leo Famulari</td></tr>