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-rw-r--r--stern.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/stern.c b/stern.c
index 84ece95..38b9171 100644
--- a/stern.c
+++ b/stern.c
@@ -117,14 +117,14 @@ Window win;
GC gc;
int
-main(void)
+main(int argc, char **argv)
{
XEvent event;
int screen;
int black, white;
int r = 0;
- display = XOpenDisplay(NULL);
+ display = XOpenDisplay(argc == 2 ? argv[1] : NULL);
screen = DefaultScreen(display);
black = BlackPixel(display, screen);
white = WhitePixel(display, screen);