dev-libs/libmelf: update EAPI 6 -> 8

Closes: https://bugs.gentoo.org/337187
Signed-off-by: Thomas Bracht Laumann Jespersen <t@laumann.xyz>
Signed-off-by: Ulrich Müller <ulm@gentoo.org>

dev-libs/libmelf/files/libmelf-0.4.0-r2-ldflags-soname.patch

@@ -0,0 +1,13 @@
+diff --git a/configure.in b/configure.in
+index b25f195..7a7e320 100644
+--- a/configure.in
++++ b/configure.in
+@@ -25,7 +25,7 @@ AC_MSG_RESULT($cache_sys_os)
+ if test "x$cache_sys_os" = "xSolaris"; then
+ 	SHAREDEXEC="ld -dy -r -o libmelf.so \${OBJS}"
+ else
+-	SHAREDEXEC="\${CC} \${FLAGS} -shared \${OBJS} -o libmelf.so"
++	SHAREDEXEC="\${CC} \${FLAGS} \${LDFLAGS} -shared \${OBJS} -Wl,-soname,libmelf.so  -o libmelf.so"
+ fi
+
+ AC_C_BIGENDIAN()

dev-libs/libmelf/libmelf-0.4.0-r2.ebuild

@@ -0,0 +1,52 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools flag-o-matic toolchain-funcs
+
+DESCRIPTION="libmelf is a library interface for manipulating ELF object files"
+HOMEPAGE="https://www.hick.org/code/skape/libmelf/"
+SRC_URI="https://www.hick.org/code/skape/${PN}/${P}.tar.gz"
+
+LICENSE="Artistic"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+IUSE="static-libs"
+
+PATCHES=(
+	# This patch was gained from the elfsign-0.2.2 release
+	"${FILESDIR}"/${PN}-0.4.1-unfinal-release.patch
+	# Cleanup stuff
+	"${FILESDIR}"/${PN}-0.4.0-r1-gcc-makefile-cleanup.patch
+	# Respect LDFLAGS when linking, set SONAME
+	"${FILESDIR}"/${PN}-0.4.0-r2-ldflags-soname.patch
+)
+
+src_prepare() {
+	default
+	eautoreconf
+}
+
+src_configure() {
+	tc-export CC AR RANLIB
+	append-flags -fPIC
+	default
+}
+
+src_compile() {
+	emake OPTFLAGS="${CFLAGS}"
+}
+
+src_install() {
+	dobin tools/elfres
+
+	dolib.so libmelf.so
+	use static-libs && dolib.a libmelf.a
+
+	insinto /usr/include
+	doins melf.h stdelf.h
+
+	HTML_DOCS=( docs/html/. )
+	einstalldocs
+}