fix some warnings and compilation errors

6 files changed, 5 insertions, 7 deletions

diff --git a/config.mk b/config.mk
index e234f8b..6f21cc3 100644
--- a/config.mk
+++ b/config.mk
@@ -1,6 +1,6 @@
 # INCS = `sdl2-config --cflags`
 
-CFLAGS = -std=c89 -DSDL_DISABLE_IMMINTRIN_H -w -I.
+CFLAGS = -DSDL_DISABLE_IMMINTRIN_H -I. -w -g
 LIBS = -lm -lSDL2 -lSDL2_image
 
 CC = cc
diff --git a/src/canvas.c b/src/canvas.c
index ce8772b..47f9b92 100644
--- a/src/canvas.c
+++ b/src/canvas.c
@@ -388,6 +388,7 @@ canvas_save(Canvas *c, const char *path, short int s)
 	fclose(fp);
 	if (s)
 		canvas_set_proj_path(c, path);
+	return 0;
 }
 
 uint8
diff --git a/src/cdraw.c b/src/cdraw.c
index 25c0dba..74335d4 100644
--- a/src/cdraw.c
+++ b/src/cdraw.c
@@ -10,9 +10,6 @@
 #include "palette.h"
 #include "ui.h"
 
-/* macros */
-#define LENGTH(X)       (sizeof X / sizeof X[0])
-
 typedef struct {
     SDL_Keymod mod;
     SDL_Keycode sym;
@@ -77,7 +74,7 @@ main_window_init(const char *s)
         return 1;
     }
 
-    ren = SDL_CreateRenderer(win, -1, 0);
+    ren = SDL_CreateRenderer(win, -1, SDL_RENDERER_PRESENTVSYNC);
     if (ren == NULL) {
         printf("SDL_CreateRenderer failed: %s\n", SDL_GetError());
         return 1;
diff --git a/src/cdraw.h b/src/cdraw.h
index 1d66b6b..633eea7 100644
--- a/src/cdraw.h
+++ b/src/cdraw.h
@@ -15,7 +15,7 @@ extern int mouseX, mouseY;
 extern const unsigned int back_c;
 
 unsigned int    main_event_handle();
-unsigned int    main_window_init();
+unsigned int    main_window_init(const char *);
 unsigned int    main_quit();
 
 /* Functions for user bind to something else */
diff --git a/src/debug.c b/src/debug.c
index 3f2b85a..b673835 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -1,5 +1,6 @@
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <assert.h>
 
 struct debug_header {
diff --git a/src/ui.c b/src/ui.c
index 28a54f6..202abcb 100644
--- a/src/ui.c
+++ b/src/ui.c
@@ -13,7 +13,6 @@
 #include "palette.h"
 
 #define fpan    main_ui->focus_panel
-#define LENGTH(X)   (sizeof X / sizeof *X)
 #define MAX(a, b)   (((a) > (b)) ? (a) : (b));
 
 static const SDL_Rect ui_frame_rect[] = {