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. */
 
 /*
ain'><a href='/'>index</a> : <a href='/guix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='42da990859d41a4da9f74e4d20fe5c5b972ada18'/><select name='h' onchange='this.form.submit();'>
<option value='koszko' selected='selected'>koszko</option>
<option value='koszko-scripts'>koszko-scripts</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Wojtek's customized 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=42da990859d41a4da9f74e4d20fe5c5b972ada18'>refs</a><a class='active' href='/guix/log/gnu/packages/rsync.scm'>log</a><a href='/guix/tree/gnu/packages/rsync.scm?id=42da990859d41a4da9f74e4d20fe5c5b972ada18'>tree</a><a href='/guix/commit/gnu/packages/rsync.scm?id=42da990859d41a4da9f74e4d20fe5c5b972ada18'>commit</a><a href='/guix/diff/gnu/packages/rsync.scm?id=42da990859d41a4da9f74e4d20fe5c5b972ada18'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/rsync.scm'>
<input type='hidden' name='id' value='42da990859d41a4da9f74e4d20fe5c5b972ada18'/><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=42da990859d41a4da9f74e4d20fe5c5b972ada18'>root</a>/<a href='/guix/log/gnu?id=42da990859d41a4da9f74e4d20fe5c5b972ada18'>gnu</a>/<a href='/guix/log/gnu/packages?id=42da990859d41a4da9f74e4d20fe5c5b972ada18'>packages</a>/<a href='/guix/log/gnu/packages/rsync.scm?id=42da990859d41a4da9f74e4d20fe5c5b972ada18'>rsync.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/packages/rsync.scm?id=42da990859d41a4da9f74e4d20fe5c5b972ada18&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-04-11 18:07:39 +0200'>2021-04-11</span></td><td><a href='/guix/commit/gnu/packages/rsync.scm?id=96feb7515e3c75e7e8e5f51d91a3c6d1bf1c36f1'>gnu: librsync: Update to 2.3.2.</a><span class='msg-avail'>...</span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2020-12-31 02:34:16 -0500'>2020-12-31</span></td><td><a href='/guix/commit/gnu/packages/rsync.scm?id=bffc33d2d6c4b198aefab9187b505c2eec242a21'>gnu: librsync: Update to 2.3.1.</a><span class='msg-avail'>...</span></td><td>Vincent Legoll</td></tr>