From c2b99f6321965b2c5b30a1b72b29119281c2d7e1 Mon Sep 17 00:00:00 2001
From: Chris Xiong <chirs241097@gmail.com>
Date: Mon, 25 Apr 2016 23:47:43 +0800
Subject: Compile with -fPIC to allow linkage to libraries. Make several math
 functions static. Elimate several warnings from the compiler.

---
 extensions/makefile   | 2 +-
 extensions/smgrid.cpp | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'extensions')

diff --git a/extensions/makefile b/extensions/makefile
index 4c6b3fe..c5f30e1 100644
--- a/extensions/makefile
+++ b/extensions/makefile
@@ -1,5 +1,5 @@
 CC= g++
-CXXFLAGS= -c -std=c++11 -Wall -I../include -I/usr/include/freetype2
+CXXFLAGS= -c -g -std=c++11 -Wall -I../include -I/usr/include/freetype2 -fPIC
 
 all: objects archive clean
 
diff --git a/extensions/smgrid.cpp b/extensions/smgrid.cpp
index d78864f..5e00a6b 100644
--- a/extensions/smgrid.cpp
+++ b/extensions/smgrid.cpp
@@ -70,7 +70,7 @@ void smGrid::setBlend(int blend){quad.blend=blend;}
 void smGrid::setColor(int c,int r,DWORD col){if(c<cc&&r<rc)pos[r*cc+c].col=col;}
 void smGrid::setPos(int c,int r,float x,float y,float z,int ref)
 {
-	if(c<cc&&r<rc)
+	if(c>=0&&r>=0&&c<cc&&r<rc)
 	{
 		if(ref==GRID_REFCENTER)x+=cw*(cc-1)/2,y+=ch*(rc-1)/2;
 		if(ref==GRID_REFNODE)x+=c*cw,y+=r*ch;
-- 
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