From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Thu, 14 Apr 2022 00:11:34 +0000 (-0700)
Subject: gvpack: cast assignment of string literal to mutable variable
X-Git-Tag: 4.0.0~67^2~22
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4e13dd92c869a8107cb4f274502809e2252af8fa;p=graphviz

gvpack: cast assignment of string literal to mutable variable

This pre-emptively squashes an upcoming warning when converting this file to C++
which otherwise fails the CMake build:

  cmd/tools/gvpack.cpp:77:22: error: ISO C++11 does not allow conversion from
    string literal to 'char *' [-Werror,-Wwritable-strings]

Gitlab: #2154
---

diff --git a/cmd/tools/gvpack.c b/cmd/tools/gvpack.c
index ac8a54c93..2d8297b87 100644
--- a/cmd/tools/gvpack.c
+++ b/cmd/tools/gvpack.c
@@ -74,7 +74,7 @@ static int G_cnt;		/* No. of -G arguments */
 static int G_sz;		/* Storage size for -G arguments */
 static attr_t *G_args;		/* Storage for -G arguments */
 static bool doPack;              /* Do packing if true */
-static char* gname = "root";
+static char* gname = (char*)"root";
 
 #define NEWNODE(n) ((node_t*)ND_alg(n))