From a58c1b216bb1d4547f7b2ef2703fe2d0cd3b5cac Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Sun, 1 Oct 2017 14:45:12 +0100
Subject: Make the code base clean under -Wwrite-strings.

I've also added that warning option and -Werror to the build script,
so that I'll find out if I break this property in future.
---
 slant.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'slant.c')

diff --git a/slant.c b/slant.c
index 7fe5a6a..3fd6611 100644
--- a/slant.c
+++ b/slant.c
@@ -413,7 +413,7 @@ static void fill_square(int w, int h, int x, int y, int v,
 }
 
 static int vbitmap_clear(int w, int h, struct solver_scratch *sc,
-                         int x, int y, int vbits, char *reason, ...)
+                         int x, int y, int vbits, const char *reason, ...)
 {
     int done_something = FALSE;
     int vbit;
@@ -734,7 +734,7 @@ static int slant_solve(int w, int h, const signed char *clues,
 		int fs, bs, v;
 		int c1, c2;
 #ifdef SOLVER_DIAGNOSTICS
-		char *reason = "<internal error>";
+		const char *reason = "<internal error>";
 #endif
 
 		if (soln[y*w+x])
-- 
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