dev-scheme/guile-zlib: new package; add 0.1.0

Bug: trofi/nix-guix-gentoo#24
Signed-off-by: Maciej Barć <[email protected]>

dev-scheme/guile-zlib/Manifest

@@ -0,0 +1 @@
+DIST guile-zlib-0.1.0.tar.gz 14652 BLAKE2B 10f0c4d312b07415f3846927a3a1d59aa62106bf0e4a4446ba6764486104053da544fc994491af6611154edb459bba7c55e79095695b90c28ce4237e24e3b98b SHA512 bf9201c7c01324a44ae86a673f4d1b92fd6f346d0be9d5a6390cc8be11d79d00a1cdee88c28ceb7fc5b99215198cf3ac368884381933e40babc85a21cbd300e3

dev-scheme/guile-zlib/files/guile-zlib-0.1.0-gentoo.patch

@@ -0,0 +1,13 @@
+Not upstreamable hack. Gentoo installs /usr/${libdir}/libz.so
+linker script that redirects to /${libdir}/libz.so.1
+
+Let's use ELF file directly. It also requires guile to support
+direct loading and enforces >=guile-3.
+--- a/zlib/config.scm.in
++++ b/zlib/config.scm.in
+@@ -20,4 +20,4 @@
+   #:export (%libz))
+
+ (define %libz
+-  "@LIBZ_LIBDIR@/libz")
++  "@LIBZ_LIBDIR@/libz.so.1")

dev-scheme/guile-zlib/guile-zlib-0.1.0.ebuild

@@ -0,0 +1,43 @@
+# Copyright 1999-2022 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit autotools
+
+DESCRIPTION="GNU Guile library providing bindings to zlib"
+HOMEPAGE="https://notabug.org/guile-zlib/guile-zlib/"
+SRC_URI="https://notabug.org/${PN}/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}"/${PN}
+
+LICENSE="GPL-3+"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+
+RDEPEND="
+	>=dev-scheme/guile-2.0.0:=
+	sys-libs/zlib
+"
+DEPEND="${RDEPEND}"
+
+DOCS=( AUTHORS ChangeLog HACKING NEWS README.org )
+PATCHES=( "${FILESDIR}"/${P}-gentoo.patch )
+
+# guile generates ELF files without use of C or machine code
+# It's a portage's false positive. bug #677600
+QA_PREBUILT='*[.]go'
+
+src_prepare() {
+	default
+
+	# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=38112
+	find "${S}" -name "*.scm" -exec touch {} + || die
+
+	eautoreconf
+}
+
+src_configure() {
+	# Gentoo installs zlib to /${libdir} and to /usr/${libdir}.
+	# We need /${libdir} with shared library here.
+	econf LIBZ_LIBDIR="${EPREFIX}/$(get_libdir)"
+}

dev-scheme/guile-zlib/metadata.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "https://www.gentoo.org/dtd/metadata.dtd">
+
+<pkgmetadata>
+  <maintainer type="project">
+    <email>[email protected]</email>
+    <name>Gentoo Scheme Project</name>
+  </maintainer>
+  <upstream>
+    <bugs-to>https://notabug.org/guile-zlib/guile-zlib/</bugs-to>
+  </upstream>
+</pkgmetadata>