From e0d4403e78a7af8f4be4110ae25e9c3d1ac93a78 Mon Sep 17 00:00:00 2001
From: Alex Richardson <Alexander.Richardson@cl.cam.ac.uk>
Date: Wed, 14 Jul 2021 12:46:20 +0100
Subject: [PATCH] Fix -Wincompatible-function-pointer-types warning

Adding const to the return type does nothing and means that the function
pointer types do not match exactly:

error: incompatible function pointer types passing 'const float (int, int)' to parameter of type 'dither_factor_t' (aka 'float (*)(int, int)')
---
 pixman/pixman-bits-image.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pixman/pixman-bits-image.c b/pixman/pixman-bits-image.c
index a0d94417..6f654203 100644
--- a/pixman/pixman-bits-image.c
+++ b/pixman/pixman-bits-image.c
@@ -1055,14 +1055,14 @@ dest_write_back_narrow (pixman_iter_t *iter)
     iter->y++;
 }
 
-static const float
+static float
 dither_factor_blue_noise_64 (int x, int y)
 {
     float m = dither_blue_noise_64x64[((y & 0x3f) << 6) | (x & 0x3f)];
     return m * (1. / 4096.f) + (1. / 8192.f);
 }
 
-static const float
+static float
 dither_factor_bayer_8 (int x, int y)
 {
     uint32_t m;
-- 
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