From ab67174af2b5e8df126b8ee72b05a014977c019c Mon Sep 17 00:00:00 2001
From: Sam James <sam@gentoo.org>
Date: Tue, 15 Jun 2021 02:02:15 +0000
Subject: [PATCH] games-emulation/libretro-snes9x: fix build with GCC 11

Closes: https://bugs.gentoo.org/787116
Signed-off-by: Sam James <sam@gentoo.org>
---
 ...snes9x-0.0.2_pre20200107-gcc11-const.patch | 52 +++++++++++++++++++
 .../libretro-snes9x-0.0.2_pre20200107.ebuild  | 10 +++-
 2 files changed, 61 insertions(+), 1 deletion(-)
 create mode 100644 games-emulation/libretro-snes9x/files/libretro-snes9x-0.0.2_pre20200107-gcc11-const.patch

diff --git a/games-emulation/libretro-snes9x/files/libretro-snes9x-0.0.2_pre20200107-gcc11-const.patch b/games-emulation/libretro-snes9x/files/libretro-snes9x-0.0.2_pre20200107-gcc11-const.patch
new file mode 100644
index 0000000000000..2fce97d6434c5
--- /dev/null
+++ b/games-emulation/libretro-snes9x/files/libretro-snes9x-0.0.2_pre20200107-gcc11-const.patch
@@ -0,0 +1,52 @@
+https://bugs.gentoo.org/787116
+https://github.com/libretro/snes9x/commit/da1fc9a69d8fc776f1b13b080bc27cf329c52a1f
+
+From da1fc9a69d8fc776f1b13b080bc27cf329c52a1f Mon Sep 17 00:00:00 2001
+From: Alberto Fustinoni <alberto@aftnet.net>
+Date: Thu, 10 Sep 2020 22:22:46 +0900
+Subject: [PATCH] Build fix
+
+---
+ conffile.cpp | 2 +-
+ conffile.h   | 6 +++---
+ 2 files changed, 4 insertions(+), 4 deletions(-)
+
+diff --git a/conffile.cpp b/conffile.cpp
+index 817afae7f..5e121e2cc 100644
+--- a/conffile.cpp
++++ b/conffile.cpp
+@@ -452,7 +452,7 @@ void ConfigFile::ClearLines()
+     }
+ }
+ 
+-bool ConfigFile::ConfigEntry::section_then_key_less::operator()(const ConfigEntry &a, const ConfigEntry &b) {
++bool ConfigFile::ConfigEntry::section_then_key_less::operator()(const ConfigEntry &a, const ConfigEntry &b) const {
+ 	if(curConfigFile && a.section!=b.section){
+ 		const int sva = curConfigFile->GetSectionSize(a.section);
+ 		const int svb = curConfigFile->GetSectionSize(b.section);
+diff --git a/conffile.h b/conffile.h
+index ba69812df..c09cea362 100644
+--- a/conffile.h
++++ b/conffile.h
+@@ -90,18 +90,18 @@ class ConfigFile {
+ 		mutable bool used;
+ 
+         struct section_then_key_less {
+-            bool operator()(const ConfigEntry &a, const ConfigEntry &b);
++            bool operator()(const ConfigEntry &a, const ConfigEntry &b) const;
+         };
+ 
+         struct key_less {
+-            bool operator()(const ConfigEntry &a, const ConfigEntry &b) const{
++            bool operator()(const ConfigEntry &a, const ConfigEntry &b) const {
+                 if(a.section!=b.section) return a.section<b.section;
+                 return a.key<b.key;
+             }
+         };
+ 
+         struct line_less {
+-            bool operator()(const ConfigEntry &a, const ConfigEntry &b){
++            bool operator()(const ConfigEntry &a, const ConfigEntry &b) const {
+ 				if(a.line==b.line) return (b.val.empty() && !a.val.empty()) || a.key<b.key;
+                 if(b.line<0) return true;
+                 if(a.line<0) return false;
diff --git a/games-emulation/libretro-snes9x/libretro-snes9x-0.0.2_pre20200107.ebuild b/games-emulation/libretro-snes9x/libretro-snes9x-0.0.2_pre20200107.ebuild
index e96b4cd5b53b9..80a05e3fd38de 100644
--- a/games-emulation/libretro-snes9x/libretro-snes9x-0.0.2_pre20200107.ebuild
+++ b/games-emulation/libretro-snes9x/libretro-snes9x-0.0.2_pre20200107.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2020 Gentoo Authors
+# Copyright 1999-2021 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -15,3 +15,11 @@ DESCRIPTION="Snes9x libretro port"
 LICENSE="Snes9x GPL-2 GPL-2+ LGPL-2.1 LGPL-2.1+ ISC MIT ZLIB Info-ZIP"
 RESTRICT="bindist"
 SLOT="0"
+
+src_prepare() {
+	cd .. || die
+	eapply "${FILESDIR}"/${PN}-0.0.2_pre20200107-gcc11-const.patch
+	cd "${S}" || die
+
+	libretro-core_src_prepare
+}