From d47be2dd9e11f4ed8a1fa2b8e63945e55ba6d75c Mon Sep 17 00:00:00 2001
From: nobuh <nobu.hatano@gmail.com>
Date: Wed, 7 Jun 2023 23:08:33 +0900
Subject: [PATCH] fix make: multiple definition of nrow and ncol

make fail by the error

/usr/bin/ld: main.o:(.bss+0x0): multiple definition of `nrow'; memory.o:(.bss+0x0): first defined here
/usr/bin/ld: main.o:(.bss+0x4): multiple definition of `ncol'; memory.o:(.bss+0x4): first defined here

fix definition of the global variables nrow and ncol.
---
 src/screen.c | 2 ++
 src/screen.h | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/screen.c b/src/screen.c
index 629acbc..3113604 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -36,6 +36,8 @@ static int indexX, indexY;
 static WINDOW *screen;
 static long long interval_start; /* interval start time in u sec */
 
+int nrow, ncol;
+
 char getch_screen(void)
 {
 	return (char)wgetch(screen);
diff --git a/src/screen.h b/src/screen.h
index 88bdbb3..3324fad 100644
--- a/src/screen.h
+++ b/src/screen.h
@@ -25,5 +25,5 @@ void outputDsp(unsigned char dsp);
 char getch_screen(void);
 void select_screen(void);
 
-int nrow, ncol;
+extern int nrow, ncol;