dev-libs/bglibs: fix tests w/ _F_S=3

Closes: https://bugs.gentoo.org/956707
Signed-off-by: Sam James <sam@gentoo.org>

dev-libs/bglibs/bglibs-2.04-r5.ebuild

@@ -0,0 +1,102 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit dot-a toolchain-funcs
+
+DESCRIPTION="Bruce Guenter's Libraries Collection"
+HOMEPAGE="https://untroubled.org/bglibs/"
+SRC_URI="https://untroubled.org/bglibs/archive/${P}.tar.gz"
+
+LICENSE="LGPL-2.1+"
+SLOT="0/2"
+KEYWORDS="~alpha ~amd64 ~arm ~hppa ~loong ~mips ~ppc ~ppc64 ~riscv ~sparc ~x86"
+IUSE="doc"
+
+BDEPEND="
+	dev-build/libtool
+	doc? (
+		app-text/doxygen
+		dev-texlive/texlive-latexrecommended
+		dev-texlive/texlive-latex
+		dev-texlive/texlive-latexextra
+		virtual/latex-base
+	)
+"
+
+PATCHES=(
+	"${FILESDIR}"/bglibs-2.04-stack-buffers.patch
+	"${FILESDIR}"/bglibs-2.04-feature-tests.patch
+	"${FILESDIR}"/bglibs-2.04-musl.patch
+	"${FILESDIR}"/bglibs-2.04-gcc14.patch
+	"${FILESDIR}"/bglibs-2.04-prefix.patch
+	"${FILESDIR}"/bglibs-2.04-fortify.patch
+)
+
+src_prepare() {
+	default
+
+	# Remove the tests from the default target so that we can run
+	# them only when the user has enabled them.
+	sed -i '/^all:/s|selftests||' Makefile || die
+	sed -i '/selftests/d' TARGETS || die
+
+	# The selftests.sh script collects the list of tests to run by
+	# grepping for "#ifdef SELFTEST_MAIN", which is defined in each *.c
+	# file to be tested. We can therefore disable individual tests by
+	# clobbering that line. (This should be safe; the contents of that
+	# ifdef are the test program, which we are disabling anyway.)
+	#
+	# This test requires network access, and currently fails even
+	# if you have it (https://github.com/bruceg/bglibs/issues/5).
+	sed -e 's/#ifdef SELFTEST_MAIN/#ifdef UNDEFINED/' \
+		-i net/resolve_ipv4addr.c || die
+}
+
+src_configure() {
+	lto-guarantee-fat
+	echo "$(tc-getCC) ${CFLAGS}" > conf-cc || die
+	echo "$(tc-getCC) ${LDFLAGS}" > conf-ld || die
+}
+
+src_compile() {
+	# Parallel build fails, bug #343617
+	MAKEOPTS+=" -j1" default
+
+	if use doc; then
+		emake -C doc/latex pdf
+	fi
+}
+
+src_test() {
+	einfo "Running selftests"
+	emake selftests
+}
+
+src_install() {
+	echo "${ED}/usr/bin" > conf-bin || die
+	echo "${ED}/usr/$(get_libdir)/bglibs" > conf-lib || die
+	echo "${ED}/usr/include" > conf-include || die
+	echo "${ED}/usr/share/man" > conf-man || die
+
+	default
+
+	# Install .so into LDPATH
+	mv "${ED}"/usr/$(get_libdir)/bglibs/libbg.so.2.0.0 \
+		"${ED}"/usr/$(get_libdir)/ \
+		|| die
+	dosym libbg.so.2.0.0 /usr/$(get_libdir)/libbg.so.2
+	dosym libbg.so.2.0.0 /usr/$(get_libdir)/libbg.so
+	dosym ../libbg.so.2.0.0 /usr/$(get_libdir)/bglibs/libbg.so.2.0.0
+
+	strip-lto-bytecode
+
+	rm "${ED}"/usr/$(get_libdir)/bglibs/libbg.la || die
+
+	dodoc ANNOUNCEMENT NEWS README ChangeLog TODO VERSION
+	dodoc -r doc/html/
+	if use doc; then
+		dodoc doc/latex/refman.pdf
+	fi
+}

dev-libs/bglibs/files/bglibs-2.04-fortify.patch

@@ -0,0 +1,12 @@
+https://bugs.gentoo.org/956707
+--- a/net/dns_resolvconfip.c
++++ b/net/dns_resolvconfip.c
+@@ -71,7 +71,7 @@ static int init(ipv4addr ip[DNS_MAX_IPS])
+     memcpy(ip,"\177\0\0\1",4);
+     iplen = 4;
+   }
+-  memset(ip + iplen,0,64 - iplen);
++  memset(&ip[iplen],0,sizeof(ipv4addr));
+   return 0;
+ }
+