* [gentoo-dev] [RFC] simple-build eclass
@ 2008-11-14 0:15 Diego 'Flameeyes' Pettenò
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From: Diego 'Flameeyes' Pettenò @ 2008-11-14 0:15 UTC (permalink / raw)
To: gentoo-dev
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I've already written about the possibility of creating an ebuild to
simply _replace_ the entire buildsystem of a package if it's
non-existant (simple .c file thrown around by upstream), too minimal
and/or impossible to get upstream do adapt, or as a temporary measure
until upstream is beaten into common sense.
The whole story can be found at
http://blog.flameeyes.eu/2008/10/15/fixing-cflags-ldflags-handling-with-a-single-boilerplate-makefile
I'm attaching a proof of concept of the eclass, it's certainly not ready
for prime time: it does not support C++ programs, it does not have
pkg-config support, and so on. But in general it should work, I'm also
attaching a reworked ebuild for uif2iso (package I maintain and for
which I had to _rewrite_ the whole Makefile already).
This gets especially interesting to consider if we want to enable
--as-needed by default, since this will allow easy fix for packages that
don't otherwise build with --as-needed, like habak that I had to fix,
and takes care of quite a few different problems at once.
HTH,
[-- Attachment #1.2: simple-build.eclass --]
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# Copyright 2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
#
# Author: Diego Pettenò <flameeyes@gentoo.org>
inherit toolchain-funcs
EXPORT_FUNCTIONS src_compile src_install
simple-build_src_compile() {
cat - > Makefile <<EOF
OBJS = \$(patsubst %.c,%.o,\$(wildcard \$(SRCS)))
\$(TARGET): \$(OBJS)
\$(CC) \$(LDFLAGS) \$^ -o \$@ \$(LIBS)
EOF
emake \
CC="$(tc-getCC)" \
SRCS="${SIMPLE_SOURCES}" \
LIBS="${SIMPLE_LIBRARIES}" \
TARGET="${SIMPLE_TARGET:-${PN}}" \
|| die "emake failed"
}
simple-build_src_install() {
dobin ${SIMPLE_TARGET:-${PN}} || die "dobin failed"
}
[-- Attachment #1.3: uif2iso-0.1.7.ebuild --]
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# Copyright 1999-2008 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
inherit simple-build flag-o-matic
DESCRIPTION="Converts MagicISO CD-images to iso"
HOMEPAGE="http://aluigi.org/mytoolz.htm#uif2iso"
SRC_URI="mirror://gentoo/${P}.zip"
LICENSE="GPL-2"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE=""
RDEPEND="sys-libs/zlib"
DEPEND="${RDEPEND}
app-arch/unzip"
SIMPLE_SOURCES='src/*.c'
SIMPLE_LIBRARIES='-lz'
src_compile() {
append-flags -DMAGICISO_IS_SHIT
simple-build_src_compile
}
src_install() {
simple-build_src_install
dodoc "${WORKDIR}"/${PN}.txt "${WORKDIR}"/README || die "dodoc failed"
}
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--
Diego "Flameeyes" Pettenò
http://blog.flameeyes.eu/
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