ghostscript: fix build with gcc-15 on host

(From OE-Core rev: 02e282f6417274a93c6f01978bf33e2d171297b0)

Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/ghostscript/ghostscript/0001-Bug-708160-Fix-compatibility-with-C23-compilers.patch

@@ -0,0 +1,67 @@
+From c595086bfe206776676e290df98cd09e91210e27 Mon Sep 17 00:00:00 2001
+From: Alex Cherepanov <alex@coscript.biz>
+Date: Thu, 3 Apr 2025 17:19:41 +0100
+Subject: [PATCH] Bug 708160: Fix compatibility with C23 compilers
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+* fixes:
+  http://errors.yoctoproject.org/Errors/Details/853021/
+
+In file included from ./base/genconf.c:18:
+./base/stdpre.h:348:13: error: ‘bool’ cannot be defined via ‘typedef’
+  348 | typedef int bool;
+      |             ^~~~
+./base/stdpre.h:348:13: note: ‘bool’ is a keyword with ‘-std=c23’ onwards
+./base/stdpre.h:348:1: warning: useless type name in empty declaration
+  348 | typedef int bool;
+      | ^~~~~~~
+
+Upstream-Status: Backport [Partial backport of https://cgit.ghostscript.com/cgi-bin/cgit.cgi/ghostpdl.git/commit/base/stdpre.h?id=ae940946473ceb8c5353bc6e7f04673c6e60502d]
+
+Signed-off-by: Martin Jansa <martin.jansa@gmail.com>
+---
+ base/stdpre.h | 6 ++++--
+ 1 file changed, 4 insertions(+), 2 deletions(-)
+
+diff --git a/base/stdpre.h b/base/stdpre.h
+index dda30b6..2f9c84e 100644
+--- a/base/stdpre.h
++++ b/base/stdpre.h
+@@ -1,4 +1,4 @@
+-/* Copyright (C) 2001-2023 Artifex Software, Inc.
++/* Copyright (C) 2001-2025 Artifex Software, Inc.
+    All Rights Reserved.
+ 
+    This software is provided AS-IS with no warranty, either express or
+@@ -341,7 +341,9 @@ typedef signed char schar;
+  * and the MetroWerks C++ compiler insists that bool be equivalent to
+  * unsigned char.
+  */
+-#ifndef __cplusplus
++
++/* C23 has bool as a builtin type. */
++#if !defined(__cplusplus) && (!defined(__STDC_VERSION__) || __STDC_VERSION__ < 202311L)
+ #ifdef __BEOS__
+ typedef unsigned char bool;
+ #else
+diff --git a/base/gp.h b/base/gp.h
+index ad5bb61..cf2c9cf 100644
+--- a/base/gp.h
++++ b/base/gp.h
+@@ -1,4 +1,4 @@
+-/* Copyright (C) 2001-2023 Artifex Software, Inc.
++/* Copyright (C) 2001-2025 Artifex Software, Inc.
+    All Rights Reserved.
+ 
+    This software is provided AS-IS with no warranty, either express or
+@@ -646,7 +646,7 @@ int gp_fseek_impl(FILE *strm, gs_offset_t offset, int origin);
+ /* Create a second open gp_file on the basis of a given one */
+ FILE *gp_fdup_impl(FILE *f, const char *mode);
+ 
+-int gp_fseekable_impl(FILE *f);
++bool gp_fseekable_impl(FILE *f);
+ 
+ /* Force given file into binary mode (no eol translations, etc) */
+ /* if 2nd param true, text mode if 2nd param false */

meta/recipes-extended/ghostscript/ghostscript_10.05.0.bb

@@ -25,6 +25,7 @@ def gs_verdir(v):
 SRC_URI = "https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs${@gs_verdir("${PV}")}/${BPN}-${PV}.tar.gz \
            file://ghostscript-9.16-Werror-return-type.patch \
            file://avoid-host-contamination.patch \
+           file://0001-Bug-708160-Fix-compatibility-with-C23-compilers.patch \
            "
 
 SRC_URI[sha256sum] = "56e77833de683825c420d0af8cb90aa8ba7da71ea6fb5624290cbc1b53fe7942"