X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fx11%2Ffg_spaceball_x11.c;h=e8c328a7a524f70824e3e695193cdebb5e802725;hb=207c3128bf025b5e025bace5c0425d380dd72aa9;hp=582a9265047914a5d3e2edd76d26efeae1b2411b;hpb=5b3d339481bac6dbaeb599bffc1325f716585bfe;p=freeglut

diff --git a/src/x11/fg_spaceball_x11.c b/src/x11/fg_spaceball_x11.c
index 582a926..e8c328a 100644
--- a/src/x11/fg_spaceball_x11.c
+++ b/src/x11/fg_spaceball_x11.c
@@ -136,7 +136,8 @@ void fgSpaceballHandleXEvent(const XEvent *xev)
             break;
 
         case SPNAV_EVENT_BUTTON:
-            INVOKE_WCB(*spnav_win, SpaceButton, (sev.button.bnum, sev.button.press ? GLUT_DOWN : GLUT_UP));
+            /* button numbers are 1-based in glutSpaceballButtonFunc */
+            INVOKE_WCB(*spnav_win, SpaceButton, (sev.button.bnum + 1, sev.button.press ? GLUT_DOWN : GLUT_UP));
             break;
 
         default:
@@ -174,10 +175,7 @@ OF SUCH DAMAGE.
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-
-#ifdef HAVE_ERRNO_H
 #include <errno.h>
-#endif
 
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>