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='2020-10-20 00:21:31 +0200'>2020-10-20</span></td><td><a href='/guix/commit/gnu/packages/patches/farstream-make.patch?id=c87646400dbc304e3eaa6c469c11341f8f44ce88'>gnu: Add farstream.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/freedesktop.scm (farstream): New variable.
* gnu/packages/patches/farstream-make.patch: New file.
* gnu/local.mk (dist_PATCH_DATA): Add it.

Signed-off-by: Julien Lepiller &lt;julien@lepiller.eu&gt;
</span></span></td><td>Raghav Gururajan</td></tr>