dev-libs/confuse: EAPI=8, add some good upstream fixes

Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>

dev-libs/confuse/confuse-3.3-r3.ebuild

@@ -0,0 +1,63 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit multilib-minimal
+
+DESCRIPTION="a configuration file parser library"
+HOMEPAGE="https://github.com/libconfuse/libconfuse"
+SRC_URI="https://github.com/libconfuse/libconfuse/releases/download/v${PV}/${P}.tar.xz"
+
+LICENSE="ISC"
+SLOT="0/2.1.0"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~mips ppc ppc64 ~riscv ~sparc x86 ~amd64-linux ~x86-linux ~ppc-macos"
+
+IUSE="nls static-libs"
+
+BDEPEND="
+	app-alternatives/lex
+	dev-build/libtool
+	virtual/pkgconfig
+	nls? ( sys-devel/gettext )
+"
+RDEPEND="
+	nls? ( virtual/libintl[${MULTILIB_USEDEP}] )
+"
+
+PATCHES=(
+	# Upstream commit to fix CVE-2022-40320:
+	# https://github.com/libconfuse/libconfuse/commit/d73777c2c3566fb2647727bb56d9a2295b81669b
+	"${FILESDIR}"/confuse-3.3-fix-CVE-2022-40320.patch
+	# https://github.com/libconfuse/libconfuse/pull/167
+	"${FILESDIR}"/confuse-3.3-lfs.patch
+	# https://github.com/libconfuse/libconfuse/pull/181
+	"${FILESDIR}"/confuse-3.3-isspace.patch
+)
+
+DOCS=( AUTHORS )
+
+src_prepare() {
+	default
+	multilib_copy_sources
+}
+
+multilib_src_configure() {
+	# examples are normally compiled but not installed. They
+	# fail during a mingw crosscompile.
+	local ECONF_SOURCE=${BUILD_DIR}
+	econf \
+		--disable-examples \
+		$(use_enable nls) \
+		$(use_enable static-libs static)
+}
+
+multilib_src_install_all() {
+	doman doc/man/man3/*.3
+	dodoc -r doc/html
+
+	docinto examples
+	dodoc examples/*.{c,conf}
+
+	find "${D}" -name '*.la' -type f -delete || die
+}

dev-libs/confuse/files/confuse-3.3-isspace.patch

@@ -0,0 +1,38 @@
+https://github.com/libconfuse/libconfuse/commit/dc7cef956d6d7c1ec792f9561f732797b52e92d4
+From: Thomas Klausner <wiz@gatalith.at>
+Date: Mon, 5 May 2025 23:22:51 +0200
+Subject: [PATCH] Fix isspace() arguments.
+
+Per ANSI and POSIX, isspace() only accepts arguments that
+are valid 'unsigned char' or EOF.
+
+The code passed 'char' arguments, which on many platforms are
+'signed char'. These are automatically promoted to integers, keeping
+the sign, so negative values like -61 are passed to isspace(),
+which is not allowed per the standards.
+
+Casting to 'unsigned char' makes sure the isspace argument is in the
+allowed range.
+
+Fixes core dump e.g. in i3status.
+
+Closes #180.
+--- a/src/lexer.l
++++ b/src/lexer.l
+@@ -397,14 +397,14 @@ static char *trim_whitespace(char *str, unsigned int len)
+ 	return str;
+
+     while (len > 1) {
+-	if ((str[len] == 0 || isspace(str[len])) && isspace(str[len - 1]))
++	if ((str[len] == 0 || isspace((unsigned char)str[len])) && isspace((unsigned char)str[len - 1]))
+ 	    len--;
+ 	else
+ 	    break;
+     }
+     str[len] = 0;
+
+-    while (isspace(*str))
++    while (isspace((unsigned char)*str))
+ 	str++;
+
+     return str;

dev-libs/confuse/files/confuse-3.3-lfs.patch

@@ -0,0 +1,31 @@
+https://github.com/libconfuse/libconfuse/commit/e967a307bf570306acd949513559e044b0da1f2d
+From: Mike Frysinger <vapier@chromium.org>
+Date: Tue, 10 Jan 2023 14:03:09 -0500
+Subject: [PATCH] configure.ac: enable automatic LFS support
+
+Automatically enable large filesystem support so we use the newer
+interfaces when interacting with the filesystem.  Without this,
+code that tries to stat a file with 64-bit inodes can fail if the
+stat structure is only 32-bit (which is common on x86 & arm).  On
+Linux, this can manifest with some filesystems more often than
+others.
+
+Practically speaking, since libconfuse doesn't do too much file
+I/O, the overhead should be non-existent.  Especially since the
+C library (e.g. glibc) is already using the 64-bit syscall even
+if the function call was 32-bit.
+
+On systems that have 64-bit stat already (which is common on x86_64
+and aarch64), there is no overhead as the code is exactly the same.
+--- a/configure.ac
++++ b/configure.ac
+@@ -31,6 +31,9 @@ AM_GNU_GETTEXT([external])
+ AM_GNU_GETTEXT_VERSION([0.19.6])
+ AM_GNU_GETTEXT_REQUIRE_VERSION([0.19.6])
+
++# Checks for OS settings.
++AC_SYS_LARGEFILE
++
+ # Checks for header files.
+ AC_HEADER_STDC
+ AC_CHECK_HEADERS([unistd.h string.h strings.h sys/stat.h windows.h])