[gnumeric] Compilation: add missing prototype.

[Morten Welinder <mortenw src gnome org>]

commit 2fd7ab9573b459f44e1a53c261ccda45fbc71a47
Author: Morten Welinder <terra gnome org>
Date:   Wed Feb 10 11:30:58 2016 -0500

    Compilation: add missing prototype.

 plugins/glpk/gnm-glpk.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/glpk/gnm-glpk.c b/plugins/glpk/gnm-glpk.c
index a774cff..c342604 100644
--- a/plugins/glpk/gnm-glpk.c
+++ b/plugins/glpk/gnm-glpk.c
@@ -1,6 +1,6 @@
 #include <gnumeric-config.h>
 #include "gnumeric.h"
-#include <tools/gnm-solver.h>
+#include "boot.h"
 #include "cell.h"
 #include "sheet.h"
 #include "value.h"