[gentoo-dev] [Survey || RFC] autotools-utils.eclass

[gentoo-dev] [Survey || RFC] autotools-utils.eclass

[Maciej Mrozowski]

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Is anyone interested in cmake-utils like autotools/base wrapper?

Features:
- base.eclass autopatcher (including user patches)
- myeconfargs - econf arguments as Bash array (usage like mycmakeargs in 
cmake-utils)
- out of source build (enabled by default) with overridable build dir location
- static archives handling (enable/disable static based on static-libs in 
IUSE)
- libtool archives removal (depending on static-libs USE flag)
- enable/disable debug handling (debug in IUSE)
- cmake-utils resemblance (DOCS, HTML_DOCS variables)
- ???
- Profit! ;)

Example usage in attached clucene-0.9.21b-r1.
Also a patch for base.eclass to make it's econf accept arguments + some random 
function documentation fix.

-- 
regards
MM

[-- Attachment #2: base.eclass.diff --]
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Index: base.eclass
===================================================================
RCS file: /var/cvsroot/gentoo-x86/eclass/base.eclass,v
retrieving revision 1.50
diff -u -B -r1.50 base.eclass
--- base.eclass	12 Apr 2010 15:33:03 -0000	1.50
+++ base.eclass	25 May 2010 10:46:31 -0000
@@ -65,7 +65,7 @@
 # @FUNCTION: base_src_prepare
 # @DESCRIPTION:
 # The base src_prepare function, which is exported
-# EAPI is greater or equal to 2.
+# EAPI is greater or equal to 2. Here the PATCHES array is evaluated.
 base_src_prepare() {
 	debug-print-function $FUNCNAME "$@"
 	debug-print "$FUNCNAME: PATCHES=$PATCHES"
@@ -116,13 +116,12 @@
 # @FUNCTION: base_src_configure
 # @DESCRIPTION:
 # The base src_configure function, which is exported when
-# EAPI is greater or equal to 2. Runs basic econf. Here the PATCHES array is
-# evaluated.
+# EAPI is greater or equal to 2. Runs basic econf.
 base_src_configure() {
 	debug-print-function $FUNCNAME "$@"
 
 	# there is no pushd ${S} so we can override its place where to run
-	[[ -x ${ECONF_SOURCE:-.}/configure ]] && econf
+	[[ -x ${ECONF_SOURCE:-.}/configure ]] && econf $@
 }
 
 # @FUNCTION: base_src_compile

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# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

# @ECLASS: autotools-utils.eclass
# @MAINTAINER:
# reavertm@gentoo.org
# @DESCRIPTION:
# autotools.eclass and base.eclass wrapper providing following features:
# - autopatcher (including user patches)
# - myeconfargs - econf arguments as Bash array
# - out of source build (enabled by default) with overridable build dir location
# - static archives handling (static-libs in IUSE)
# - libtool archives removal (depending on static-libs USE flag)
# - enable/disable debug handling (debug in IUSE)
# - cmake-utils resemblance (DOCS, HTML_DOCS variables)

# Keep variable names synced with cmake-utils!

case ${EAPI:-0} in
	2|3|4) ;;
	*) DEPEND="EAPI-TOO-OLD" ;;
esac

inherit autotools base

EXPORT_FUNCTIONS src_prepare src_configure src_compile src_install src_test

# @ECLASS-VARIABLE: AUTOTOOLS_IN_SOURCE_BUILD
# @DESCRIPTION:
# Set to enable in-source build.

# @FUNCTION: _check_build_dir
# @DESCRIPTION:
# Determine using IN or OUT source build
_check_build_dir() {
	# @ECLASS-VARIABLE: ECONF_SOURCE
	# @DESCRIPTION:
	# Sets the directory where we are working with autotools.
	# By default it uses ${S}.
	: ${ECONF_SOURCE:=${S}}

	# @ECLASS-VARIABLE: AUTOTOOLS_BUILD_DIR
	# @DESCRIPTION:
	# Specify the build directory where all autotools generated
	# files should be located.
	# For installing binary doins "${AUTOTOOLS_BUILD_DIR}/somefile"
	if [[ -n ${AUTOTOOLS_IN_SOURCE_BUILD} ]]; then
		# we build in source dir
		AUTOTOOLS_BUILD_DIR="${ECONF_SOURCE}"
	else
		: ${AUTOTOOLS_BUILD_DIR:=${WORKDIR}/${P}_build}
	fi
	echo ">>> Working in BUILD_DIR: \"$AUTOTOOLS_BUILD_DIR\""
}

# @FUNCTION: autotools-utils_src_prepare
# @DESCRIPTION:
# The src_prepare function, which is exported EAPI is greater or equal to 2.
autotools-utils_src_prepare() {
	debug-print-function $FUNCNAME "$@"

	# TODO Maybe some smart patching and automatic eautoreconf call?
	base_src_prepare
}

# @FUNCTION: autotools-utils_src_configure
# @DESCRIPTION:
# The src_configure function, which is exported when EAPI is greater or equal
# to 2. Runs basic econf. Here the PATCHES array is evaluated.
autotools-utils_src_configure() {
	debug-print-function $FUNCNAME "$@"

	# @ECLASS-VARIABLE: myeconfargs
	# @DESCRIPTION:
	# econf arguments as Bash array, enable shared libs by default
	local econfargs=(
		--enable-shared
		${myeconfargs[@]}
	)

	# Handle debug found in IUSE
	if has debug ${IUSE//+}; then
		econfargs+=($(use_enable debug))
	fi

	# Handle static-libs found in IUSE, disable them by default
	if has static-libs ${IUSE//+}; then
		econfargs+=($(use_enable static-libs static))
	else
		econfargs+=(--disable-static)
	fi

	_check_build_dir
	mkdir -p "${AUTOTOOLS_BUILD_DIR}" || die "mkdir '${AUTOTOOLS_BUILD_DIR}' failed"
	pushd "${AUTOTOOLS_BUILD_DIR}" &> /dev/null
	base_src_configure "${econfargs[@]}"
	popd &> /dev/null
}

# @FUNCTION: autotools-utils_src_compile
# @DESCRIPTION:
# The autotools src_compile function, calls src_configure with EAPI older
# than 2.
autotools-utils_src_compile() {
	debug-print-function $FUNCNAME "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" &> /dev/null
	base_src_compile "$@"
	popd &> /dev/null
}

# @FUNCTION: autotools-utils_src_install
# @DESCRIPTION:
# The autotools src_install function. Runs make install, installs
# documents and html documents from DOCS and HTML_DOCS arrays
# and removes libtool files.
autotools-utils_src_install() {
	debug-print-function $FUNCNAME "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" &> /dev/null
	base_src_install
	popd &> /dev/null

	# Remove libtool archives
	if ! use static-libs && has static-libs ${IUSE//+}; then
		find "${D}" -type f -name '*.la' -exec rm -f {} + \
			|| die 'libtool archive removal failed'
	fi

	# Manual document installation
	# @ECLASS-VARIABLE: DOCS
	# @DESCRIPTION:
	# Documents passed to dodoc command.
	[[ -n "${DOCS}" ]] && { dodoc ${DOCS} || die 'dodoc failed' ; }

	# @ECLASS-VARIABLE: HTML_DOCS
	# @DESCRIPTION:
	# Documents passed to dohtml command.
	[[ -n "${HTML_DOCS}" ]] && { dohtml -r ${HTML_DOCS} || die 'dohtml failed' ; }
}

# @FUNCTION: autotools-utils_src_test
# @DESCRIPTION:
# The autotools src_test function. Runs emake check in source directory.
autotools-utils_src_test() {
	debug-print-function ${FUNCNAME} "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" &> /dev/null

	# Standard implementation of src_test
	if emake -j1 check -n &> /dev/null; then
		einfo ">>> Test phase [check]: ${CATEGORY}/${PF}"
		if ! emake -j1 check; then
			die 'Make check failed. See above for details.'
		fi
	elif emake -j1 test -n &> /dev/null; then
		einfo ">>> Test phase [test]: ${CATEGORY}/${PF}"
		if ! emake -j1 test; then
			die 'Make test failed. See above for details.'
		fi
	else
		einfo ">>> Test phase [none]: ${CATEGORY}/${PF}"
	fi

	popd &> /dev/null
}

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# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/dev-cpp/clucene/clucene-0.9.21b-r1.ebuild,v 1.1 2010/05/25 06:41:03 reavertm Exp $

EAPI="2"

inherit autotools-utils

MY_P=${PN}-core-${PV}

DESCRIPTION="High-performance, full-featured text search engine based off of lucene in C++"
HOMEPAGE="http://clucene.sourceforge.net/"
SRC_URI="mirror://sourceforge/clucene/${MY_P}.tar.bz2"

LICENSE="|| ( Apache-2.0 LGPL-2.1 )"
SLOT="1"
KEYWORDS="~alpha ~amd64 ~arm ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos"
IUSE="debug doc static-libs threads"

DEPEND="doc? ( >=app-doc/doxygen-1.4.2 )"
RDEPEND=""

PATCHES=(
	"${FILESDIR}"/${P}-gcc44.patch #254254
)

S="${WORKDIR}/${MY_P}"

src_configure() {
	myeconfargs=(
		$(use_enable debug cnddebug)
		$(use_enable threads multithreading)
	)
	autotools-utils_src_configure
}

src_compile() {
	autotools-utils_src_compile
	use doc && autotools-utils_src_compile doxygen
}

src_install() {
	autotools-utils_src_install
	use doc && dohtml "${S}"/doc/html/*
}

Re: [gentoo-dev] [Survey || RFC] autotools-utils.eclass

[Mike Frysinger]

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internal functions should not be documented with the eclass doc comments 
(_check_build_dir)

reusing a PM variable (ECONF_SOURCE) seems a little iffy

the library handling is incorrect.  i dont think you can pass around --enable-
shared all the time without having configure generate warnings about unknown 
options.  default to --disable-static when static-libs doesnt exist is wrong 
-- that's the opposite of what you should be doing.  ignoring the same issue 
as the share option i mentioned above.

pushd/popd should have stdout sent to /dev/null, not stderr too

the src_install func has the static-libs checks in the incorrect order

the src_test func looks like its copying & pasting stuff from the PM.  this 
really should be kept in the PM without duplicating it everywhere.
-mike

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[gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Maciej Mrozowski]

On Tuesday 25 of May 2010 13:02:55 Maciej Mrozowski wrote:

> Also a patch for base.eclass to make it's econf accept arguments + some
> random function documentation fix.

Commited mentioned base.eclass patch + added quoting of positional parameter 
expansion.

http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-
x86/eclass/base.eclass?r1=1.50&r2=1.52

-- 
regards
MM

Re: [gentoo-dev] [Survey || RFC] autotools-utils.eclass

[Maciej Mrozowski]

On Tuesday 25 of May 2010 20:31:33 Mike Frysinger wrote:
> internal functions should not be documented with the eclass doc comments
> (_check_build_dir)

Fixed.

> reusing a PM variable (ECONF_SOURCE) seems a little iffy

I know, initial idea was to use AUTOTOOLS_USE_DIR (analogy to CMAKE_USE_DIR), 
but then I discovered that I'd need to set ECONF_SOURCE anyway. So to avoid 
duplicating variables, I opted for ECONF_SOURCE reuse. If it's supposed to 
have internal meaning and is not part of public API, then I agree should not 
be used. I see it's explicitly mentioned in PMS though.
Waiting for further comments on that matter.

> the library handling is incorrect.  i dont think you can pass around
> --enable- shared all the time without having configure generate warnings
> about unknown options.

> default to --disable-static when static-libs
> doesnt exist is wrong -- that's the opposite of what you should be doing. 
> ignoring the same issue as the share option i mentioned above.

Right. It its safe to assume that when --disable-static/--enable-static is 
available, then --disable-shared/--enable-shared is available as well?

> pushd/popd should have stdout sent to /dev/null, not stderr too

Fixed.

> the src_install func has the static-libs checks in the incorrect order

Fixed.

> the src_test func looks like its copying & pasting stuff from the PM.  this
> really should be kept in the PM without duplicating it everywhere.

Unfortunately src_test needs to be called in build dir (which is unknown to 
PM).
Calling default_src_test is the best I could come up with.

But what's the most important - is there any interest in having such eclass? 
I'm only going to add it when it's flexible enough to effectively phase-out 
eutils/base/autotools/libtool individual uses for fully autotools-controlled 
buildsystems. Otherwise there's no point in yet another wrapper imho.

I was also thinking of integrating parts of src_prepare from virtuoso.eclass 
into autotools-utils.eclass - it provides basic support for package splitting 
of well formed (TM) and clean autotools build systems. (example packages are 
virtuoso-odbc and virtuoso-server).

Thanks

-- 
regards
MM

Re: [gentoo-dev] [Survey || RFC] autotools-utils.eclass

[Maciej Mrozowski]

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Bummer...
Forgot to attach file in question.

-- 
regards
MM

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# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

# @ECLASS: autotools-utils.eclass
# @MAINTAINER:
# reavertm@gentoo.org
# @DESCRIPTION:
# autotools.eclass and base.eclass wrapper providing all inherited features along with:
# - myeconfargs - econf arguments as Bash array
# - out of source build (enabled by default) with overridable build dir location
# - static archives handling (static-libs in IUSE)
# - libtool archives removal (depending on static-libs USE flag)
# - enable/disable debug handling (debug in IUSE)

# Keep variable names synced with cmake-utils and the other way around!

case ${EAPI:-0} in
	2|3|4) ;;
	*) DEPEND="EAPI-TOO-OLD" ;;
esac

inherit autotools base

EXPORT_FUNCTIONS src_prepare src_configure src_compile src_install src_test

# Determine using IN or OUT source build
_check_build_dir() {
	# @ECLASS-VARIABLE: ECONF_SOURCE
	# @DESCRIPTION:
	# Sets the directory where we are working with autotools.
	# By default it uses ${S}.
	: ${ECONF_SOURCE:=${S}}

	# @ECLASS-VARIABLE: AUTOTOOLS_IN_SOURCE_BUILD
	# @DESCRIPTION:
	# Set to enable in-source build.
	if [[ -n ${AUTOTOOLS_IN_SOURCE_BUILD} ]]; then
		# @ECLASS-VARIABLE: AUTOTOOLS_BUILD_DIR
		# @DESCRIPTION:
		# Specify the build directory where all autotools generated
		# files should be located.
		# For installing binary doins "${AUTOTOOLS_BUILD_DIR}/somefile"
		AUTOTOOLS_BUILD_DIR="${ECONF_SOURCE}"
	else
		: ${AUTOTOOLS_BUILD_DIR:=${WORKDIR}/${P}_build}
	fi
	echo ">>> Working in BUILD_DIR: \"$AUTOTOOLS_BUILD_DIR\""
}

# @FUNCTION: autotools-utils_src_prepare
# @DESCRIPTION:
# The src_prepare function, which is exported EAPI is greater or equal to 2.
autotools-utils_src_prepare() {
	debug-print-function $FUNCNAME "$@"

	# TODO Maybe some smart patching and automatic eautoreconf call?
	base_src_prepare
}

# @FUNCTION: autotools-utils_src_configure
# @DESCRIPTION:
# The src_configure function, which is exported when EAPI is greater or equal
# to 2. Runs basic econf. Here the PATCHES array is evaluated.
autotools-utils_src_configure() {
	debug-print-function $FUNCNAME "$@"

	# @ECLASS-VARIABLE: myeconfargs
	# @DESCRIPTION:
	# econf arguments as Bash array
	local econfargs=(
		${myeconfargs[@]}
	)

	# Handle debug found in IUSE
	if has debug ${IUSE//+}; then
		econfargs+=($(use_enable debug))
	fi

	# Handle static-libs found in IUSE, disable them by default
	if has static-libs ${IUSE//+}; then
		econfargs+=(
			--enable-shared
			$(use_enable static-libs static)
		)
	fi

	_check_build_dir
	mkdir -p "${AUTOTOOLS_BUILD_DIR}" || die "mkdir '${AUTOTOOLS_BUILD_DIR}' failed"
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_configure "${econfargs[@]}"
	popd > /dev/null
}

# @FUNCTION: autotools-utils_src_compile
# @DESCRIPTION:
# The autotools src_compile function, calls src_configure with EAPI older
# than 2.
autotools-utils_src_compile() {
	debug-print-function $FUNCNAME "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_compile "$@"
	popd > /dev/null
}

# @FUNCTION: autotools-utils_src_install
# @DESCRIPTION:
# The autotools src_install function. Runs make install and removes libtool files.
autotools-utils_src_install() {
	debug-print-function $FUNCNAME "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_install
	popd > /dev/null

	# Remove libtool archives
	if has static-libs ${IUSE//+} && ! use static-libs; then
		find "${D}" -type f -name '*.la' -exec rm -f {} + \
			|| die 'libtool archive removal failed'
	fi
}

# @FUNCTION: autotools-utils_src_test
# @DESCRIPTION:
# The autotools src_test function. Runs emake check in source directory.
autotools-utils_src_test() {
	debug-print-function ${FUNCNAME} "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	default_src_test
	popd > /dev/null
}

Re: [gentoo-dev] [Survey || RFC] autotools-utils.eclass

[Mike Frysinger]

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On Tuesday 25 May 2010 23:59:22 Maciej Mrozowski wrote:
> On Tuesday 25 of May 2010 20:31:33 Mike Frysinger wrote:
> > the library handling is incorrect.  i dont think you can pass around
> > --enable- shared all the time without having configure generate warnings
> > about unknown options.
> > 
> > default to --disable-static when static-libs
> > doesnt exist is wrong -- that's the opposite of what you should be doing.
> > ignoring the same issue as the share option i mentioned above.
> 
> Right. It its safe to assume that when --disable-static/--enable-static is
> available, then --disable-shared/--enable-shared is available as well?

i think that's a fair assumption.  the vast majority of shared/static 
enable/disable flags are coming in via libtool and not custom code.  the few 
packages doing custom code can simply write their own econf call.

> > the src_test func looks like its copying & pasting stuff from the PM. 
> > this really should be kept in the PM without duplicating it everywhere.
> 
> Unfortunately src_test needs to be called in build dir (which is unknown to
> PM).
> Calling default_src_test is the best I could come up with.

should be fine

> But what's the most important - is there any interest in having such
> eclass? I'm only going to add it when it's flexible enough to effectively
> phase-out eutils/base/autotools/libtool individual uses for fully
> autotools-controlled buildsystems. Otherwise there's no point in yet
> another wrapper imho.

personally, i probably wouldnt use this.  but i dont even like base.eclass.  
and considering other people seem to like base.eclass, it's reasonable to 
think people would like this.

the out-of-source building will trip up some packages for no reason other than 
$builddir != $srcdir, but those packages suck and should be fixed in general 
(unrelated to Gentoo).  i imagine some maintainers would be annoyed by having 
to fix these.
-mike

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[gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Duncan]

Mike Frysinger posted on Wed, 26 May 2010 00:31:21 -0400 as excerpted:

> On Tuesday 25 May 2010 23:59:22 Maciej Mrozowski wrote:
>> On Tuesday 25 of May 2010 20:31:33 Mike Frysinger wrote:
>>> the src_test func looks like its copying & pasting stuff from the PM.
>>> this really should be kept in the PM without duplicating it
>>> everywhere.
>> 
>> Unfortunately src_test needs to be called in build dir (which is
>> unknown to PM).
>> Calling default_src_test is the best I could come up with.
> 
> should be fine

What about a one-liner explaining why it's here, so the next guy to
look at it won't be having MF's reaction all over again?

-- 
Duncan - List replies preferred.   No HTML msgs.
"Every nonfree program has a lord, a master --
and if you use the program, he is your master."  Richard Stallman

Re: [gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Maciej Mrozowski]

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On Wednesday 26 of May 2010 11:12:10 Duncan wrote:
> Mike Frysinger posted on Wed, 26 May 2010 00:31:21 -0400 as excerpted:
> > On Tuesday 25 May 2010 23:59:22 Maciej Mrozowski wrote:
> >> On Tuesday 25 of May 2010 20:31:33 Mike Frysinger wrote:
> >>> the src_test func looks like its copying & pasting stuff from the PM.
> >>> this really should be kept in the PM without duplicating it
> >>> everywhere.
> >> 
> >> Unfortunately src_test needs to be called in build dir (which is
> >> unknown to PM).
> >> Calling default_src_test is the best I could come up with.
> > 
> > should be fine
> 
> What about a one-liner explaining why it's here, so the next guy to
> look at it won't be having MF's reaction all over again?

Again?
I've updated documentation, added example usage and option to keep libtool 
files (ltdl.so supposedly needs those as I was told, no idea what for).

-- 
regards
MM

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# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

# @ECLASS: autotools-utils.eclass
# @MAINTAINER:
# Maciej Mrozowski <reavertm@gentoo.org>
# @BLURB: common ebuild functions for autotools-based packages
# @DESCRIPTION:
# autotools-utils.eclass is autotools.eclass(5) and base.eclass(5) wrapper
# providing all inherited features along with econf arguments as Bash array,
# out of source build with overridable build dir location, static archives
# handling, libtool archives removal, enable/disable debug handling.
#
# @EXAMPLE:
# Typical ebuild using autotools-utils.eclass:
#
# @CODE
# EAPI="2"
#
# inherit autotools-utils
#
# DESCRIPTION="Foo bar application"
# HOMEPAGE="http://foo.org/"
# SRC_URI="mirror://sourceforge/foo/${P}.tar.bz2"
#
# LICENSE="LGPL-2.1"
# KEYWORDS=""
# SLOT="0"
# IUSE="debug examples qt4 static-libs tiff"
#
# DEPEND="
# 	media-libs/libpng:0
# 	qt4? (
# 		x11-libs/qt-core:4
# 		x11-libs/qt-gui:4
# 	)
# 	tiff? ( media-libs/tiff:0 )
# "
# RDEPEND="${DEPEND}
# 	!media-gfx/bar
# "
#
# # bug 123456
# AUTOTOOLS_IN_SOURCE_BUILD=1
#
# DOCS=(AUTHORS ChangeLog README "Read me.txt" TODO)
#
# PATCHES=(
# 	"${FILESDIR}/${P}-gcc44.patch" # bug 123458
# 	"${FILESDIR}/${P}-as-needed.patch"
# 	"${FILESDIR}/${P}-unbundle_libpng.patch"
# )
#
# src_configure() {
# 	myeconfargs=(
# 		$(use_with qt4)
# 		$(use_enable threads multithreading)
# 		$(use_with tiff)
# 	)
# 	autotools-utils_src_configure
# }
#
# src_install() {
# 	autotools-utils_src_install
# 	if use examples; then
# 		dobin "${AUTOTOOLS_BUILD_DIR}"/foo_example{1,2,3} \\
# 			|| die 'dobin examples failed'
# 	fi
# }
#
# @CODE

# Keep variable names synced with cmake-utils and the other way around!

case ${EAPI:-0} in
	2|3|4) ;;
	*) DEPEND="EAPI-TOO-OLD" ;;
esac

inherit autotools base

EXPORT_FUNCTIONS src_prepare src_configure src_compile src_install src_test

# @ECLASS-VARIABLE: AUTOTOOLS_BUILD_DIR
# @DESCRIPTION:
# Build directory, location where all autotools generated files should be
# placed. For out of source builds it defaults to ${WORKDIR}/${P}_build.

# @ECLASS-VARIABLE: AUTOTOOLS_IN_SOURCE_BUILD
# @DESCRIPTION:
# Set to enable in-source build.

# @ECLASS-VARIABLE: AUTOTOOLS_KEEP_LA_FILES
# @DESCRIPTION:
# Do not remove libtool files.

# @ECLASS-VARIABLE: ECONF_SOURCE
# @DESCRIPTION:
# Specify location of autotools' configure script. By default it uses ${S}.

# @ECLASS-VARIABLE: myeconfargs
# @DESCRIPTION:
# Optional econf arguments as Bash array. Should be defined before calling src_configure.
# @CODE
# src_configure() {
# 	myeconfargs=(
# 		--disable-readline
# 		--with-confdir="/etc/nasty foo confdir/"
# 		$(use_enable debug cnddebug)
# 		$(use_enable threads multithreading)
# 	)
# 	autotools-utils_src_configure
# }
# @CODE

# Determine using IN or OUT source build
_check_build_dir() {
	: ${ECONF_SOURCE:=${S}}
	if [[ -n ${AUTOTOOLS_IN_SOURCE_BUILD} ]]; then
		AUTOTOOLS_BUILD_DIR="${ECONF_SOURCE}"
	else
		: ${AUTOTOOLS_BUILD_DIR:=${WORKDIR}/${P}_build}
	fi
	echo ">>> Working in BUILD_DIR: \"$AUTOTOOLS_BUILD_DIR\""
}

# @FUNCTION: autotools-utils_src_prepare
# @DESCRIPTION:
# The src_prepare function, supporting PATCHES array and user patches.
# See base.eclass(5) for reference.
autotools-utils_src_prepare() {
	debug-print-function $FUNCNAME "$@"

	# TODO Maybe some smart patching and automatic eautoreconf call?
	base_src_prepare
}

# @FUNCTION: autotools-utils_src_configure
# @DESCRIPTION:
# The src_configure function. For out of source build it creates build
# directory and runs econf there. Configuration parameters defined
# in myeconfargs are passed here to econf. Additionally following USE
# flags are known:
#
# IUSE="debug" passes --disable-debug/--enable-debug to econf respectively.
#
# IUSE="static-libs" passes --enable-shared and either --disable-static/--enable-static
# to econf respectively.
autotools-utils_src_configure() {
	debug-print-function $FUNCNAME "$@"

	local econfargs=(${myeconfargs[@]})

	# Handle debug found in IUSE
	if has debug ${IUSE//+}; then
		econfargs+=($(use_enable debug))
	fi

	# Handle static-libs found in IUSE, disable them by default
	if has static-libs ${IUSE//+}; then
		econfargs+=(
			--enable-shared
			$(use_enable static-libs static)
		)
	fi

	_check_build_dir
	mkdir -p "${AUTOTOOLS_BUILD_DIR}" || die "mkdir '${AUTOTOOLS_BUILD_DIR}' failed"
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_configure "${econfargs[@]}"
	popd > /dev/null
}

# @FUNCTION: autotools-utils_src_compile
# @DESCRIPTION:
# The autotools src_compile function, invokes emake in specified AUTOTOOLS_BUILD_DIR.
autotools-utils_src_compile() {
	debug-print-function $FUNCNAME "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_compile "$@"
	popd > /dev/null
}

# @FUNCTION: autotools-utils_src_install
# @DESCRIPTION:
# The autotools src_install function. Runs emake install and removes libtool files.
# DOCS and HTML_DOCS variables are supported. See base.eclass(5) for reference.
autotools-utils_src_install() {
	debug-print-function $FUNCNAME "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_install
	popd > /dev/null

	# Remove libtool archives
	if [[ -z ${AUTOTOOLS_KEEP_LA_FILES} ]] && has static-libs ${IUSE//+} && ! use static-libs; then
		find "${D}" -type f -name '*.la' -exec rm -f {} + \
			|| die 'libtool archive removal failed'
	fi
}

# @FUNCTION: autotools-utils_src_test
# @DESCRIPTION:
# The autotools src_test function. Runs emake check in build directory.
autotools-utils_src_test() {
	debug-print-function ${FUNCNAME} "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	# Run default src_test as defined in ebuild.sh
	default_src_test
	popd > /dev/null
}

Re: [gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Mike Frysinger]

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On Wednesday 26 May 2010 05:38:00 Maciej Mrozowski wrote:
> I've updated documentation, added example usage and option to keep libtool
> files (ltdl.so supposedly needs those as I was told, no idea what for).

more applicable to us w/Linux is that static linking with libtool needs them.  
the AUTOTOOLS_KEEP_LA_FILES seems kind of spurious considering current tree 
behavior and assumption of gnu-capable linking systems.
-mike

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Re: [gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Maciej Mrozowski]

On Wednesday 26 of May 2010 19:27:43 Mike Frysinger wrote:
> On Wednesday 26 May 2010 05:38:00 Maciej Mrozowski wrote:
> > I've updated documentation, added example usage and option to keep
> > libtool files (ltdl.so supposedly needs those as I was told, no idea
> > what for).
> 
> more applicable to us w/Linux is that static linking with libtool needs
> them. the AUTOTOOLS_KEEP_LA_FILES seems kind of spurious considering
> current tree behavior and assumption of gnu-capable linking systems.

It is spurious when we forget about run-time dynamic linking (plugins) in some 
apps.
libtool loader (ltdl.so) needs .la files unfortunately. One example - 
imagemagick - removing .la files for coders makes 'convert' unable to locate 
them (silly, but hey...).
Using autotools-utils for such packages would mean:
- either not having static-libs in IUSE - barely acceptable
- or having static-libs in IUSE but overriding all autotools-utils provided 
phases that make some actions depending on that USE flag - barely convenient

(or not using this eclass, but like I said - I'd prefer it was able to 
obsolete all other autotools related eclasses - for ebuild API unification 
purpose - in such case it would be adopted by base-system@ most likely - hmm 
but then I'd need to add '<'EAPI-2 support, and it means src_unpack which I 
want to avoid)

Since .la files aren't unfortunately exclusively related to static libs, I 
think it's better to have a simple option to keep .la files and be able to 
produce static libs in straightforward way even when this option for most 
cases would be simply redundant.

-- 
regards
MM

Re: [gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Nathan Phillip Brink]

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On Mon, May 31, 2010 at 03:29:01PM +0200, Maciej Mrozowski wrote:
> On Wednesday 26 of May 2010 19:27:43 Mike Frysinger wrote:
> > On Wednesday 26 May 2010 05:38:00 Maciej Mrozowski wrote:
> > > I've updated documentation, added example usage and option to keep
> > > libtool files (ltdl.so supposedly needs those as I was told, no idea
> > > what for).

IMO, ltdl.so is probably just being silly. Perhaps these files contain
information that is useful on non-Linux systems for dlopen()ing
plugins.

> > more applicable to us w/Linux is that static linking with libtool needs
> > them. the AUTOTOOLS_KEEP_LA_FILES seems kind of spurious considering
> > current tree behavior and assumption of gnu-capable linking systems.
> 
> It is spurious when we forget about run-time dynamic linking (plugins) in some 
> apps.
> libtool loader (ltdl.so) needs .la files unfortunately. One example - 
> imagemagick - removing .la files for coders makes 'convert' unable to locate 
> them (silly, but hey...).

This case can be caught by checking if the .la file has the following in it:
``
# Should we warn about portability when linking against -modules?
shouldnotlink=yes
''

If shouldnotlink=no _and_ the .la file in question is not libltdl.la
itself, it is generally safe to remove. This is the current policy of
the portage-multilib branch of the multilib overlay. libtool archive
files which are safe to remove are removed by portage-multilib after
the install phase. It seems to work well enough.

Removing .la files which are useless on a given system would be very
nice. It would be even more useful if unused .a files could be swept
away at the same time :-).

-- 
ohnobinki

Look out for missing apostrophes!

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Re: [gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Maciej Mrozowski]

[-- Attachment #1.1: Type: Text/Plain, Size: 2305 bytes --]

On Thursday 03 of June 2010 01:32:09 Nathan Phillip Brink wrote:
> On Mon, May 31, 2010 at 03:29:01PM +0200, Maciej Mrozowski wrote:
> > On Wednesday 26 of May 2010 19:27:43 Mike Frysinger wrote:
> > > On Wednesday 26 May 2010 05:38:00 Maciej Mrozowski wrote:
> > > > I've updated documentation, added example usage and option to keep
> > > > libtool files (ltdl.so supposedly needs those as I was told, no idea
> > > > what for).
> 
> IMO, ltdl.so is probably just being silly. Perhaps these files contain
> information that is useful on non-Linux systems for dlopen()ing
> plugins.
> 
> > > more applicable to us w/Linux is that static linking with libtool needs
> > > them. the AUTOTOOLS_KEEP_LA_FILES seems kind of spurious considering
> > > current tree behavior and assumption of gnu-capable linking systems.
> > 
> > It is spurious when we forget about run-time dynamic linking (plugins) in
> > some apps.
> > libtool loader (ltdl.so) needs .la files unfortunately. One example -
> > imagemagick - removing .la files for coders makes 'convert' unable to
> > locate them (silly, but hey...).
> 
> This case can be caught by checking if the .la file has the following in
> it: ``
> # Should we warn about portability when linking against -modules?
> shouldnotlink=yes
> ''

Excellent. Eclass updated, see attachment. AUTOTOOLS_KEEP_LA_FILES option 
removed. Now removing .la files relies only on shouldnotlink value (and 
static-libs presence in IUSE that is).

> Removing .la files which are useless on a given system would be very
> nice. It would be even more useful if unused .a files could be swept
> away at the same time :-).

They are - just add static-libs to IUSE and disable said USE flag when 
emerging.

I've also had an idea to be smarter and to look for patches (PATCHES array) 
updating any .m4, Makefile.{ac,in}, configure.{ac.in} files and to run 
eautoreconf automatically in ${eclass}_src_prepare but I've decided it's a bit 
too much. I may rethink the idea later though.

If there are no objections nor further comments, I'd like to unleash new 
eclass for public consumption within a few days.

Real-world example ebuild attached, also there's more extensive (but purely 
academic) example in eclass itself.

-- 
regards
MM

[-- Attachment #1.2: autotools-utils.eclass --]
[-- Type: text/plain, Size: 5966 bytes --]

# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $

# @ECLASS: autotools-utils.eclass
# @MAINTAINER:
# Maciej Mrozowski <reavertm@gentoo.org>
# @BLURB: common ebuild functions for autotools-based packages
# @DESCRIPTION:
# autotools-utils.eclass is autotools.eclass(5) and base.eclass(5) wrapper
# providing all inherited features along with econf arguments as Bash array,
# out of source build with overridable build dir location, static archives
# handling, libtool files removal, enable/disable debug handling.
#
# @EXAMPLE:
# Typical ebuild using autotools-utils.eclass:
#
# @CODE
# EAPI="2"
#
# inherit autotools-utils
#
# DESCRIPTION="Foo bar application"
# HOMEPAGE="http://example.org/foo/"
# SRC_URI="mirror://sourceforge/foo/${P}.tar.bz2"
#
# LICENSE="LGPL-2.1"
# KEYWORDS=""
# SLOT="0"
# IUSE="debug doc examples qt4 static-libs tiff"
#
# CDEPEND="
# 	media-libs/libpng:0
# 	qt4? (
# 		x11-libs/qt-core:4
# 		x11-libs/qt-gui:4
# 	)
# 	tiff? ( media-libs/tiff:0 )
# "
# RDEPEND="${CDEPEND}
# 	!media-gfx/bar
# "
# DEPEND="${CDEPEND}
# 	doc? ( app-doc/doxygen )
# "
#
# # bug 123456
# AUTOTOOLS_IN_SOURCE_BUILD=1
#
# DOCS=(AUTHORS ChangeLog README "Read me.txt" TODO)
#
# PATCHES=(
# 	"${FILESDIR}/${P}-gcc44.patch" # bug 123458
# 	"${FILESDIR}/${P}-as-needed.patch"
# 	"${FILESDIR}/${P}-unbundle_libpng.patch"
# )
#
# src_configure() {
# 	myeconfargs=(
# 		$(use_with qt4)
# 		$(use_enable threads multithreading)
# 		$(use_with tiff)
# 	)
# 	autotools-utils_src_configure
# }
#
# src_compile() {
# 	autotools-utils_src_compile
# 	use doc && autotools-utils_src_compile docs
# }
#
# src_install() {
# 	use doc && HTML_DOCS=("${AUTOTOOLS_BUILD_DIR}/apidocs/html/")
# 	autotools-utils_src_install
# 	if use examples; then
# 		dobin "${AUTOTOOLS_BUILD_DIR}"/foo_example{1,2,3} \\
# 			|| die 'dobin examples failed'
# 	fi
# }
#
# @CODE

# Keep variable names synced with cmake-utils and the other way around!

case ${EAPI:-0} in
	2|3|4) ;;
	*) DEPEND="EAPI-TOO-OLD" ;;
esac

inherit autotools base

EXPORT_FUNCTIONS src_prepare src_configure src_compile src_install src_test

# @ECLASS-VARIABLE: AUTOTOOLS_BUILD_DIR
# @DESCRIPTION:
# Build directory, location where all autotools generated files should be
# placed. For out of source builds it defaults to ${WORKDIR}/${P}_build.

# @ECLASS-VARIABLE: AUTOTOOLS_IN_SOURCE_BUILD
# @DESCRIPTION:
# Set to enable in-source build.

# @ECLASS-VARIABLE: ECONF_SOURCE
# @DESCRIPTION:
# Specify location of autotools' configure script. By default it uses ${S}.

# @ECLASS-VARIABLE: myeconfargs
# @DESCRIPTION:
# Optional econf arguments as Bash array. Should be defined before calling src_configure.
# @CODE
# src_configure() {
# 	myeconfargs=(
# 		--disable-readline
# 		--with-confdir="/etc/nasty foo confdir/"
# 		$(use_enable debug cnddebug)
# 		$(use_enable threads multithreading)
# 	)
# 	autotools-utils_src_configure
# }
# @CODE

# Determine using IN or OUT source build
_check_build_dir() {
	: ${ECONF_SOURCE:=${S}}
	if [[ -n ${AUTOTOOLS_IN_SOURCE_BUILD} ]]; then
		AUTOTOOLS_BUILD_DIR="${ECONF_SOURCE}"
	else
		: ${AUTOTOOLS_BUILD_DIR:=${WORKDIR}/${P}_build}
	fi
	echo ">>> Working in BUILD_DIR: \"$AUTOTOOLS_BUILD_DIR\""
}

# @FUNCTION: autotools-utils_src_prepare
# @DESCRIPTION:
# The src_prepare function, supporting PATCHES array and user patches.
# See base.eclass(5) for reference.
autotools-utils_src_prepare() {
	debug-print-function $FUNCNAME "$@"

	base_src_prepare
}

# @FUNCTION: autotools-utils_src_configure
# @DESCRIPTION:
# The src_configure function. For out of source build it creates build
# directory and runs econf there. Configuration parameters defined
# in myeconfargs are passed here to econf. Additionally following USE
# flags are known:
#
# IUSE="debug" passes --disable-debug/--enable-debug to econf respectively.
#
# IUSE="static-libs" passes --enable-shared and either --disable-static/--enable-static
# to econf respectively.
autotools-utils_src_configure() {
	debug-print-function $FUNCNAME "$@"

	local econfargs=(${myeconfargs[@]})

	# Handle debug found in IUSE
	if has debug ${IUSE//+}; then
		econfargs+=($(use_enable debug))
	fi

	# Handle static-libs found in IUSE, disable them by default
	if has static-libs ${IUSE//+}; then
		econfargs+=(
			--enable-shared
			$(use_enable static-libs static)
		)
	fi

	_check_build_dir
	mkdir -p "${AUTOTOOLS_BUILD_DIR}" || die "mkdir '${AUTOTOOLS_BUILD_DIR}' failed"
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_configure "${econfargs[@]}"
	popd > /dev/null
}

# @FUNCTION: autotools-utils_src_compile
# @DESCRIPTION:
# The autotools src_compile function, invokes emake in specified AUTOTOOLS_BUILD_DIR.
autotools-utils_src_compile() {
	debug-print-function $FUNCNAME "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_compile "$@"
	popd > /dev/null
}

# @FUNCTION: autotools-utils_src_install
# @DESCRIPTION:
# The autotools src_install function. Runs emake install and removes libtool files
# when static-libs USE flag is defined and unset.
# DOCS and HTML_DOCS arrays are supported. See base.eclass(5) for reference.
autotools-utils_src_install() {
	debug-print-function $FUNCNAME "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	base_src_install
	popd > /dev/null

	# Remove libtool files
	if has static-libs ${IUSE//+} && ! use static-libs; then
		local f
		for f in $(find "${D}" -type f -name '*.la'); do
			# Keep only .la files with shouldnotlink=yes - likely plugins
			[[ -n `sed -ne '/^shouldnotlink=yes$/p' "${f}"` ]] || rm -f "${f}"
		done
	fi
}

# @FUNCTION: autotools-utils_src_test
# @DESCRIPTION:
# The autotools src_test function. Runs emake check in build directory.
autotools-utils_src_test() {
	debug-print-function ${FUNCNAME} "$@"

	_check_build_dir
	pushd "${AUTOTOOLS_BUILD_DIR}" > /dev/null
	# Run default src_test as defined in ebuild.sh
	default_src_test
	popd > /dev/null
}

[-- Attachment #1.3: plib-1.8.5-r1.ebuild --]
[-- Type: text/plain, Size: 804 bytes --]

# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/media-libs/plib/plib-1.8.5.ebuild,v 1.6 2009/12/26 16:59:50 armin76 Exp $

EAPI=2

WANT_AUTOCONF=2.5
WANT_AUTOMAKE=1.9
inherit autotools-utils

DESCRIPTION="multimedia library used by many games"
HOMEPAGE="http://plib.sourceforge.net/"
SRC_URI="http://plib.sourceforge.net/dist/${P}.tar.gz"

LICENSE="LGPL-2"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~hppa ~ppc ~sparc ~x86"
IUSE="static-libs"

RDEPEND="
	media-libs/libsdl
	virtual/glut
	virtual/opengl
"
DEPEND="${RDEPEND}"

PATCHES=(
	"${FILESDIR}/${P}-shared-libs.patch"
)

DOCS=(AUTHORS ChangeLog KNOWN_BUGS NOTICE README TODO-1.6 TODO-2.0 TODO_AFTER135)

src_prepare() {
	autotools-utils_src_prepare
	eautoreconf
}

[-- Attachment #2: This is a digitally signed message part. --]
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Re: [gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Maciej Mrozowski]

On Wednesday 07 of July 2010 02:16:13 Maciej Mrozowski wrote:
> On Thursday 03 of June 2010 01:32:09 Nathan Phillip Brink wrote:
> > On Mon, May 31, 2010 at 03:29:01PM +0200, Maciej Mrozowski wrote:
> > > On Wednesday 26 of May 2010 19:27:43 Mike Frysinger wrote:
> > > > On Wednesday 26 May 2010 05:38:00 Maciej Mrozowski wrote:
> > > > > I've updated documentation, added example usage and option to keep
> > > > > libtool files (ltdl.so supposedly needs those as I was told, no
> > > > > idea what for).
> > 
> > IMO, ltdl.so is probably just being silly. Perhaps these files contain
> > information that is useful on non-Linux systems for dlopen()ing
> > plugins.
> > 
> > > > more applicable to us w/Linux is that static linking with libtool
> > > > needs them. the AUTOTOOLS_KEEP_LA_FILES seems kind of spurious
> > > > considering current tree behavior and assumption of gnu-capable
> > > > linking systems.
> > > 
> > > It is spurious when we forget about run-time dynamic linking (plugins)
> > > in some apps.
> > > libtool loader (ltdl.so) needs .la files unfortunately. One example -
> > > imagemagick - removing .la files for coders makes 'convert' unable to
> > > locate them (silly, but hey...).
> > 
> > This case can be caught by checking if the .la file has the following in
> > it: ``
> > # Should we warn about portability when linking against -modules?
> > shouldnotlink=yes
> > ''
> 
> Excellent. Eclass updated, see attachment. AUTOTOOLS_KEEP_LA_FILES option
> removed. Now removing .la files relies only on shouldnotlink value (and
> static-libs presence in IUSE that is).
> 
> > Removing .la files which are useless on a given system would be very
> > nice. It would be even more useful if unused .a files could be swept
> > away at the same time :-).
> 
> They are - just add static-libs to IUSE and disable said USE flag when
> emerging.
> 
> I've also had an idea to be smarter and to look for patches (PATCHES array)
> updating any .m4, Makefile.{ac,in}, configure.{ac.in} files and to run
> eautoreconf automatically in ${eclass}_src_prepare but I've decided it's a
> bit too much. I may rethink the idea later though.
> 
> If there are no objections nor further comments, I'd like to unleash new
> eclass for public consumption within a few days.

Before I do so, please comment on the following changes I've made:
- always pass --disable-dependency-tracking
- always remove static libs corresponding to plugins (based on 
shouldnotlink=yes)
- add remove_libtool_files [all|none] function
- add some low-profile echo messages showing removed files
- append myeconfargs at the end of econfargs so that eclass defaults can be 
overriden at request

http://git.overlays.gentoo.org/gitweb/?p=proj/kde.git;a=history;f=eclass/autotools-
utils.eclass

If there are no further issues, I'll commit it to tree (with announcement) 
within three or more days.

-- 
regards
MM

[gentoo-dev] Re: [Survey || RFC] autotools-utils.eclass

[Vaeth]

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Sorry to post once again with the broken email headers,
but I think I should remark on this.

Maciej Mrozowski wrote:

> - always pass --disable-dependency-tracking

It is probably widely unknown that --disable-dependency-tracking
has an unexpected side effect: It makes the "silent rules" feature
of automake-1.11 useless (more and more projects are beginning to
use this feature).
One may consider this as a bug of automake-1.11, but this is
how it is now, and I do not know whether there are plans to
change it in future versions of automake.

Regards
Martin Väth