From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Thu, 11 Nov 2021 01:27:18 +0000 (-0800)
Subject: z_file_header: use an unsigned element type and mark 'const'
X-Git-Tag: 2.50.0~30^2~13
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=69a9f4b8f7fc1a368663a15ea36103398f9ea537;p=graphviz

z_file_header: use an unsigned element type and mark 'const'

Squashes a -Wconversion compiler warnings and this data is never modified.
---

diff --git a/lib/gvc/gvdevice.c b/lib/gvc/gvdevice.c
index 1948eb77c..5fea75809 100644
--- a/lib/gvc/gvdevice.c
+++ b/lib/gvc/gvdevice.c
@@ -35,7 +35,7 @@
 #ifndef OS_CODE
 #  define OS_CODE  0x03  /* assume Unix */
 #endif
-static char z_file_header[] =
+static const unsigned char z_file_header[] =
    {0x1f, 0x8b, /*magic*/ Z_DEFLATED, 0 /*flags*/, 0,0,0,0 /*time*/, 0 /*xflags*/, OS_CODE};
 
 static z_stream z_strm;