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. */
 
 /*
='/'>index</a> : <a href='/guix/'>guix</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='b758242df811cc657231bd10ec5cdad8421df092'/><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=b758242df811cc657231bd10ec5cdad8421df092'>refs</a><a class='active' href='/guix/log/tests/base32.scm'>log</a><a href='/guix/tree/tests/base32.scm?id=b758242df811cc657231bd10ec5cdad8421df092'>tree</a><a href='/guix/commit/tests/base32.scm?id=b758242df811cc657231bd10ec5cdad8421df092'>commit</a><a href='/guix/diff/tests/base32.scm?id=b758242df811cc657231bd10ec5cdad8421df092'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/tests/base32.scm'>
<input type='hidden' name='id' value='b758242df811cc657231bd10ec5cdad8421df092'/><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=b758242df811cc657231bd10ec5cdad8421df092'>root</a>/<a href='/guix/log/tests?id=b758242df811cc657231bd10ec5cdad8421df092'>tests</a>/<a href='/guix/log/tests/base32.scm?id=b758242df811cc657231bd10ec5cdad8421df092'>base32.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/tests/base32.scm?id=b758242df811cc657231bd10ec5cdad8421df092&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2020-08-29 16:24:17 +0200'>2020-08-29</span></td><td><a href='/guix/commit/tests/base32.scm?id=d7965b58d25c9c7648ba5682223f32d759fdffda'>build: Remove references to the 'nix-hash' program.</a><span class='msg-avail'>...<span class='msg-tooltip'>* configure.ac: Remove check for 'nix-hash'.
* tests/base32.scm (%nix-hash, %have-nix-hash?): Remove.
("sha256 &amp; bytevector-&gt;nix-base32-string"): Remove test.
* build-aux/pre-inst-env.in: Do not set 'NIX_HASH' environment
variable.
</span></span></td><td>Ludovic Courtès</td></tr>