[Buildroot] Easier adding of new packages / alsa-lib & utils

[Buildroot] Easier adding of new packages / alsa-lib & utils

[Benjamin Tietz]

Hi,

the attachment contains two patches. The first one will rapidly shorten
the Makefile to add a new package to the buildroot (at least for most
packages), while being fully compatible to the standard way used up to
now.
While the Config.in follows the same rules, the Makefile for the new
package provides only the NEEDED information to add the package. Let see
on an example (Its nearly the same included in the second patch):

	#############################################################
	#
	# alsa libraries
	#
	#############################################################
	ALSA_VERSION:=1.0.13
	ALSA_SITE:=ftp://ftp.alsa-project.org/pub
	ALSA_LIB_FILE:=alsa-lib-$(ALSA_VERSION).tar.bz2
	ALSA_LIB_SITE:=$(ALSA_SITE)/lib/$(ALSA_LIB_FILE)
	
	alsa-lib: $(DL_DIR)/$(ALSA_LIB_FILE) $(BUILD_DIR)/alsa-lib-$(ALSA_VERSION)/.libs
	
	ifeq ($(BR2_PACKAGE_ALSA_LIB),y)
	TARGETS+=alsa-lib
	endif
	
the interesting thing is the line starting with alsa-lib:
This rule depends first on the downloaded source file and second on a
file called .libs in the source-directory. Over a chain of implicit
rules this means the Source-file will fetched from the address in
$(ALSA_LIB_SITE) than automaticly unpacked, patched (if configured even
config.sub and config.guess are updated), compiled, installed and - as
this is a library - prepared for further use by the buildroot. (exactly
the lib will be installed a second time into the staging dir, while the
headers will be deleted from the rootfs).

Other targets are:
$(PACKAGE_BUILD_DIR)/.unpacked
$(PACKAGE_BUILD_DIR)/.patched
$(PACKAGE_BUILD_DIR)/.configured
$(PACKAGE_BUILD_DIR)/.build
$(PACKAGE_BUILD_DIR)/.installed (for normal programs, also done by .libs)
$(PACKAGE_BUILD_DIR)/.libs

They all are chained along so picking up the one you like to go along
with will do the thing.
To get even more packages to work with, you can also give some options
to make and configure:

$(PACKAGE_CONF_ENV) will take environment varaibles for configure
$(PACKAGE_CONF_OPT) takes Options passed to configure
$(PACKAGE_MAKE_ENV) and
$(PACKAGE_MAKE_OPT) do the same for the make-runs.

If you just want to bypass or change some particular steps you only
create a rule in your Makefile like

$(PACKAGE_BUILD_DIR)/.configured: $(PACKAGE_BUILD_DIR)/.patched
	touch $@

Which will simply bypass the step of configuration, eg because your
package can't be configured by using a script.
Adding some code below that line will run it. But only this!


The Second patch is mostly an example (Thats way they come along in one
Mail) integrating the ALSA-libs and utils. (Most notably a mixer to
adjust the volume of your soundcard)

best regards

Benjamin
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[Buildroot] Easier adding of new packages / alsa-lib & utils

[Ulf Samuelsson]

> Hi,
> 
> the attachment contains two patches. The first one will rapidly shorten
> the Makefile to add a new package to the buildroot (at least for most
> packages), while being fully compatible to the standard way used up to
> now.

As I see it we lack two things in the build.
1) Ability to use backup sites if the main site is temporarily or permanently down.
2) Handling of distributions.    I.E. ability to specify which package version you 
    want to build in a way which is separated from the package build script.
3) Ability to generate binary packages which can be added/removed from 
    the root fs.

Any chance of looking into this?
An alternative to this patch could be to use the OpenWRT build script
which does (1) and (3) above.

OpenWRT seems to be a split from buildroot.
Is there a heated history here?

> While the Config.in follows the same rules, the Makefile for the new
> package provides only the NEEDED information to add the package. Let see
> on an example (Its nearly the same included in the second patch):
> 


Best Regards
Ulf Samuelsson 

[Buildroot] Easier adding of new packages / alsa-lib & utils

[Benjamin Tietz]

To 1) The main problem, I think, is that somebody has to maintain these
backup-addresses or to provide a backup-server containing all possibly
needed files. The rest of the problem is easy, as it can be solved
either by a scipt wrapping wget or by a File-downloading-rule caring
about backup-locations

To 2) This is a more difficult problem since you have to give the user a
chance to specify all supported versions. If you want to integrate it
into the current configuration-process you would have to specify a field
or list for every single package - Leaving the user alone with the
decision of hundred of different versions.

According to the introduction, we would have enough up to here :)

To 3) You have something like this, even if it could be improved. If you
"make package" the first time you build and install the package. If you
afterwards do "make package-clean" you remove it from the rootfs. Doing
"make package" again installs the stuff...

best regards

On Fri, Jun 08, 2007 at 08:22:26AM +0200, Ulf Samuelsson wrote:
> > Hi,
> > 
> > the attachment contains two patches. The first one will rapidly shorten
> > the Makefile to add a new package to the buildroot (at least for most
> > packages), while being fully compatible to the standard way used up to
> > now.
> 
> As I see it we lack two things in the build.
> 1) Ability to use backup sites if the main site is temporarily or permanently down.
> 2) Handling of distributions.    I.E. ability to specify which package version you 
>     want to build in a way which is separated from the package build script.
> 3) Ability to generate binary packages which can be added/removed from 
>     the root fs.
> 
> Any chance of looking into this?
> An alternative to this patch could be to use the OpenWRT build script
> which does (1) and (3) above.
> 
> OpenWRT seems to be a split from buildroot.
> Is there a heated history here?
> 
> > While the Config.in follows the same rules, the Makefile for the new
> > package provides only the NEEDED information to add the package. Let see
> > on an example (Its nearly the same included in the second patch):
> > 
> 
> 
> Best Regards
> Ulf Samuelsson 
> 

[Buildroot] Easier adding of new packages / alsa-lib & utils

[Benjamin Tietz]

As I forgot to say: the PACKAGE in all of the variables is computed from
the name of the build-dir - dropping the version-number, and setting the
result uppercase while converting '-' to '_'.
The package-directory (under /package) should be called the same way,
(without case-changing or '-'-conversation) otherwise no patches would
be found.

Benjamin

On Thu, Jun 07, 2007 at 03:29:45PM +0200, Benjamin Tietz wrote:
> Hi,
> 
> the attachment contains two patches. The first one will rapidly shorten
> the Makefile to add a new package to the buildroot (at least for most
> packages), while being fully compatible to the standard way used up to
> now.
> While the Config.in follows the same rules, the Makefile for the new
> package provides only the NEEDED information to add the package. Let see
> on an example (Its nearly the same included in the second patch):
> 
> 	#############################################################
> 	#
> 	# alsa libraries
> 	#
> 	#############################################################
> 	ALSA_VERSION:=1.0.13
> 	ALSA_SITE:=ftp://ftp.alsa-project.org/pub
> 	ALSA_LIB_FILE:=alsa-lib-$(ALSA_VERSION).tar.bz2
> 	ALSA_LIB_SITE:=$(ALSA_SITE)/lib/$(ALSA_LIB_FILE)
> 	
> 	alsa-lib: $(DL_DIR)/$(ALSA_LIB_FILE) $(BUILD_DIR)/alsa-lib-$(ALSA_VERSION)/.libs
> 	
> 	ifeq ($(BR2_PACKAGE_ALSA_LIB),y)
> 	TARGETS+=alsa-lib
> 	endif
> 	
> the interesting thing is the line starting with alsa-lib:
> This rule depends first on the downloaded source file and second on a
> file called .libs in the source-directory. Over a chain of implicit
> rules this means the Source-file will fetched from the address in
> $(ALSA_LIB_SITE) than automaticly unpacked, patched (if configured even
> config.sub and config.guess are updated), compiled, installed and - as
> this is a library - prepared for further use by the buildroot. (exactly
> the lib will be installed a second time into the staging dir, while the
> headers will be deleted from the rootfs).
> 
> Other targets are:
> $(PACKAGE_BUILD_DIR)/.unpacked
> $(PACKAGE_BUILD_DIR)/.patched
> $(PACKAGE_BUILD_DIR)/.configured
> $(PACKAGE_BUILD_DIR)/.build
> $(PACKAGE_BUILD_DIR)/.installed (for normal programs, also done by .libs)
> $(PACKAGE_BUILD_DIR)/.libs
> 
> They all are chained along so picking up the one you like to go along
> with will do the thing.
> To get even more packages to work with, you can also give some options
> to make and configure:
> 
> $(PACKAGE_CONF_ENV) will take environment varaibles for configure
> $(PACKAGE_CONF_OPT) takes Options passed to configure
> $(PACKAGE_MAKE_ENV) and
> $(PACKAGE_MAKE_OPT) do the same for the make-runs.
> 
> If you just want to bypass or change some particular steps you only
> create a rule in your Makefile like
> 
> $(PACKAGE_BUILD_DIR)/.configured: $(PACKAGE_BUILD_DIR)/.patched
> 	touch $@
> 
> Which will simply bypass the step of configuration, eg because your
> package can't be configured by using a script.
> Adding some code below that line will run it. But only this!
> 
> 
> The Second patch is mostly an example (Thats way they come along in one
> Mail) integrating the ALSA-libs and utils. (Most notably a mixer to
> adjust the volume of your soundcard)
> 
> best regards
> 
> Benjamin

Content-Description: autotools.patch
> diff -Naur buildroot/Config.in buildroot.patched/Config.in
> --- buildroot/Config.in	2007-06-02 09:15:28.000000000 +0200
> +++ buildroot.patched/Config.in	2007-06-04 21:41:31.000000000 +0200
> @@ -208,6 +208,8 @@
>  
>  menu "Build options"
>  
> +source package/gnuconfig/Config.in
> +
>  config BR2_WGET
>  	string "Wget command"
>  	default "wget --passive-ftp -nd"
> diff -Naur buildroot/package/Makefile.autotools.in buildroot.patched/package/Makefile.autotools.in
> --- buildroot/package/Makefile.autotools.in	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/Makefile.autotools.in	2007-06-07 14:10:00.000000000 +0200
> @@ -0,0 +1,89 @@
> +##################################################################
> +#
> +# Implicit Rules for easy creating autotools-compatible packages
> +#
> +##################################################################
> +
> +# Macros for Variable and programmname-generation
> +VAR=$(shell echo $(call MYNAME,$(1)) | $(firstword $(SED)) -e 'y/abcdefghijklmnopqrstuvwxyz-./ABCDEFGHIJKLMNOPQRSTUVWXYZ__/')
> +MYNAME=$(shell echo $(call MYNAMEVER,$(1)) | $(firstword $(SED)) -e 's/\([-._][0-9][0-9]*\)*$$//') 
> +MYVER=$(shell echo $(call MYNAMEVER,$(1)) | $(firstword $(SED)) -e 's/\([^0-9]*-\)*//')
> +MYNAMEVER=$(notdir $(patsubst %.tar,%,$(patsubst %/,%,$(basename $(1)))))
> +
> +# Generic File retrievel Target
> +$(DL_DIR)/%:
> +	@$(WGET) -P $(DL_DIR) $$([ "$($(call VAR,$@)_SITE)" ] && echo $($(call VAR,$@)_SITE) || echo http://$(BR2_SOURCEFORGE_MIRROR).dl.sourceforge.net/sourceforge/$(firstword $(subst -, ,$@))/$@)
> +
> +# Unpacking the archive
> +$(BUILD_DIR)/%/.unpacked: $(DL_DIR)/%.tgz
> +$(BUILD_DIR)/%/.unpacked: $(DL_DIR)/%.tar.gz
> +	$(ZCAT) $< | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
> +	@touch $@
> +
> +$(BUILD_DIR)/%/.unpacked: $(DL_DIR)/%.tar.bz2
> +	$(BZCAT) $< | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
> +	@touch $@
> +
> +$(BUILD_DIR)/%/.unpacked: $(DL_DIR)/%.tar
> +	tar -C $(BUILD_DIR) $(TAR_OPTIONS) $<
> +	@touch $@
> +
> +# Patching
> +$(BUILD_DIR)/%/.patched: $(BUILD_DIR)/%/.unpacked
> +	@(if [ -d package/$(call MYNAME,$<)]; then \
> +		if [ "$(wildcard package/$(call MYNAME,$@)/$**.patch)" ]; then \
> +			toolchain/patch-kernel.sh $(@D) package/$(call MYNAME,$<) $*\*.patch; \
> +		else \
> +			toolchain/patch-kernel.sh $(@D) package/$(call MYNAME,$<) $(call MYNAME,$<)\*.patch; \
> +			[ -d package/$(call MYNAME,$<)/$* ] && \
> +				toolchain/patch-kernel.sh $(@D) package/$(call MYNAME,$<)/$* \*.patch; \
> +		fi;\
> +	fi)
> +ifeq ($(BR2_UPDATE_CONFIG),y)
> +	@(for file in config.guess config.sub; do\
> +		for i in $$(find $(@D) -name $$file); do \
> +			cp package/gnuconfig/$$file $$i; \
> +		done;\
> +	done)
> +endif
> +	@touch $@
> +
> +# Configuring
> +$(BUILD_DIR)/%/.configured: $(BUILD_DIR)/%/.patched
> +	(cd $(@D); \
> +		$(TARGET_CONFIGURE_OPTS) \
> +		CFLAGS="$(TARGET_CFLAGS)" \
> +		LDFLAGS="$(TARGET_LDFLAGS)" \
> +		$($(call VAR,$@)_CONF_ENV) \
> +		./configure \
> +		--target=$(GNU_TARGET_NAME) \
> +		--host=$(GNU_TARGET_NAME) \
> +		--build=$(GNU_HOST_NAME) \
> +		--prefix=/usr \
> +		--sysconfdir=/etc \
> +		$($(call VAR,$@)_CONF_OPT) \
> +	);
> +	touch $@;
> +
> +# Building
> +$(BUILD_DIR)/%/.build: $(BUILD_DIR)/%/.configured
> +	$($(call VAR,$@)_MAKE_ENV) $(MAKE) $($(call VAR,$@)_MAKE_OPT) -C $(@D)
> +	touch $@
> +
> +$(BUILD_DIR)/%/.installed: $(BUILD_DIR)/%/.build
> +	$($(call VAR,$@)_MAKE_ENV) $(MAKE) DESTDIR=$(TARGET_DIR) $($(call VAR,$@)_MAKE_OPT) -C $(@D) install
> +	rm -Rf $(TARGET_DIR)/usr/man
> +	touch $@
> +
> +$(BUILD_DIR)/%/.libs: $(BUILD_DIR)/%/.installed
> +	$($(call VAR,$@)_MAKE_ENV) $(MAKE) DESTDIR=$(STAGING_DIR) $($(call VAR,$@)_MAKE_OPT) -C $(@D) install
> +	rm -Rf $(STAGING_DIR)/man $(TARGET_DIR)/usr/include
> +	touch $@
> +
> +$(BUILD_DIR)/%/.clean:
> +	$($(call VAR,$@)_MAKE_ENV) $(MAKE) DESTDIR=$(STAGING_DIR) $($(call VAR,$@)_MAKE_OPT) -C $(@D) uninstall
> +	-$(MAKE) -C $(@D) clean
> +
> +$(BUILD_DIR)/%/.dirclean:
> +	rm -Rf $(@D)
> +
> diff -Naur buildroot/package/Makefile.in buildroot.patched/package/Makefile.in
> --- buildroot/package/Makefile.in	2007-06-02 09:15:28.000000000 +0200
> +++ buildroot.patched/package/Makefile.in	2007-06-07 13:47:41.000000000 +0200
> @@ -143,3 +143,5 @@
>  XSERVER+=xggi
>  endif
>  
> +include package/Makefile.autotools.in
> +
> diff -Naur buildroot/package/gnuconfig/Config.in buildroot.patched/package/gnuconfig/Config.in
> --- buildroot/package/gnuconfig/Config.in	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/gnuconfig/Config.in	2007-06-04 20:57:30.000000000 +0200
> @@ -0,0 +1,8 @@
> +config BR2_UPDATE_CONFIG
> +	bool "update config.sub and config.guess"
> +	default n
> +	help
> +		This just exists to easily update the config.sub / config.guess
> +		files in packages to the latest version (since many bundled ones
> +		don't support the latest possible targets)
> +

Content-Description: alsa.patch
> diff -Naur buildroot/package/Config.in buildroot.patched/package/Config.in
> --- buildroot/package/Config.in	2007-06-02 09:15:28.000000000 +0200
> +++ buildroot.patched/package/Config.in	2007-06-02 20:14:37.000000000 +0200
> @@ -245,6 +245,7 @@
>  source "package/libsndfile/Config.in"
>  source "package/madplay/Config.in"
>  source "package/mpg123/Config.in"
> +source "package/alsa/Config.in"
>  endif
>  
>  menuconfig BR2_GRAPHIC_SUPPORT
> diff -Naur buildroot/package/alsa/alsa.mk buildroot.patched/package/alsa/alsa.mk
> --- buildroot/package/alsa/alsa.mk	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/alsa/alsa.mk	2007-06-07 13:50:13.000000000 +0200
> @@ -0,0 +1,7 @@
> +#############################################################
> +#
> +# alsa
> +#
> +#############################################################
> +ALSA_VERSION:=1.0.13
> +ALSA_SITE:=ftp://ftp.alsa-project.org/pub
> diff -Naur buildroot/package/alsa/Config.in buildroot.patched/package/alsa/Config.in
> --- buildroot/package/alsa/Config.in	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/alsa/Config.in	2007-06-07 13:50:13.000000000 +0200
> @@ -0,0 +1,13 @@
> +menuconfig BR2_PACKAGE_ALSA
> +	bool "ALSA"
> +	default n
> +	help
> +		Using the Advanced Linux Sound Architecture
> +
> +if BR2_PACKAGE_ALSA
> +source package/alsa-lib/Config.in
> +source package/alsa-utils/Config.in
> +endif
> diff -Naur buildroot/package/alsa-lib/Config.in buildroot.patched/package/alsa-lib/Config.in
> --- buildroot/package/alsa-lib/Config.in	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/alsa-lib/Config.in	2007-05-28 14:22:40.000000000 +0200
> @@ -0,0 +1,5 @@
> +config BR2_PACKAGE_ALSA_LIB
> +	bool "ALSA library"
> +	default n
> +	help
> +		The ALSA library with the standard plugins
> diff -Naur buildroot/package/alsa-lib/lib.mk buildroot.patched/package/alsa-lib/lib.mk
> --- buildroot/package/alsa-lib/lib.mk	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/alsa-lib/lib.mk	2007-06-07 13:50:13.000000000 +0200
> @@ -0,0 +1,9 @@
> +ALSA_LIB_FILE:=alsa-lib-$(ALSA_VERSION).tar.bz2
> +ALSA_LIB_SITE:=$(ALSA_SITE)/lib/$(ALSA_LIB_FILE)
> +
> +alsa-lib: $(DL_DIR)/$(ALSA_LIB_FILE) $(BUILD_DIR)/alsa-lib-$(ALSA_VERSION)/.libs
> +
> +ifeq ($(BR2_PACKAGE_ALSA_LIB),y)
> +TARGETS+=alsa-lib
> +endif
> +
> diff -Naur buildroot/package/alsa-utils/alsa-utils-1.0.13-gettext.patch buildroot.patched/package/alsa-utils/alsa-utils-1.0.13-gettext.patch
> --- buildroot/package/alsa-utils/alsa-utils-1.0.13-gettext.patch	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/alsa-utils/alsa-utils-1.0.13-gettext.patch	2007-06-07 13:40:27.000000000 +0200
> @@ -0,0 +1,21 @@
> +diff -Naur alsa-utils-1.0.13/seq/aseqnet/Makefile.am alsa-utils-1.0.13.patched/seq/aseqnet/Makefile.am
> +--- alsa-utils-1.0.13/seq/aseqnet/Makefile.am	2006-09-29 13:53:26.000000000 +0200
> ++++ alsa-utils-1.0.13.patched/seq/aseqnet/Makefile.am	2007-06-07 13:36:47.000000000 +0200
> +@@ -1,5 +1,6 @@
> + INCLUDES = -I$(top_srcdir)/include
> + EXTRA_DIST = README.aseqnet aseqnet.1
> ++LDFLAGS = -lintl
> + 
> + bin_PROGRAMS = aseqnet
> + aseqnet_SOURCES = aseqnet.c
> +diff -Naur alsa-utils-1.0.13/seq/aseqnet/Makefile.in alsa-utils-1.0.13.patched/seq/aseqnet/Makefile.in
> +--- alsa-utils-1.0.13/seq/aseqnet/Makefile.in	2006-09-29 13:54:52.000000000 +0200
> ++++ alsa-utils-1.0.13.patched/seq/aseqnet/Makefile.in	2007-06-07 13:36:47.000000000 +0200
> +@@ -107,6 +107,7 @@
> + INTLLIBS = @INTLLIBS@
> + INTL_MACOSX_LIBS = @INTL_MACOSX_LIBS@
> + LDFLAGS = @LDFLAGS@
> ++AM_LDFLAGS = -lintl
> + LIBICONV = @LIBICONV@
> + LIBINTL = @LIBINTL@
> + LIBOBJS = @LIBOBJS@
> diff -Naur buildroot/package/alsa-utils/Config.in buildroot.patched/package/alsa-utils/Config.in
> --- buildroot/package/alsa-utils/Config.in	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/alsa-utils/Config.in	2007-05-25 22:10:46.000000000 +0200
> @@ -0,0 +1,12 @@
> +config BR2_PACKAGE_ALSA_UTILS
> +	bool "ALSA utils"
> +	default n
> +	help
> +		Tools for configuring and using ALSA
> +
> +		amixer: command line mixer
> +		alsamixer: curses mixer
> +		amidi: read from and write to ALSA RawMIDI ports
> +		aplay, arecord: command line playback and recording
> +		aplaymidi, arecordmidi: command line MIDI playback and recording
> +		aconnect, aseqnet, aseqdump: command line MIDI sequencer control
> diff -Naur buildroot/package/alsa-utils/utils.mk buildroot.patched/package/alsa-utils/utils.mk
> --- buildroot/package/alsa-utils/utils.mk	1970-01-01 01:00:00.000000000 +0100
> +++ buildroot.patched/package/alsa-utils/utils.mk	2007-06-07 12:13:50.000000000 +0200
> @@ -0,0 +1,9 @@
> +ALSA_UTILS_FILE:=alsa-utils-$(ALSA_VERSION).tar.bz2
> +ALSA_UTILS_SITE:=$(ALSA_SITE)/utils/$(ALSA_UTILS_FILE)
> +
> +alsa-utils: ncurses gettext alsa-lib $(DL_DIR)/$(ALSA_UTILS_FILE) $(BUILD_DIR)/alsa-utils-$(ALSA_VERSION)/.installed
> +
> +ifeq ($(BR2_PACKAGE_ALSA_UTILS),y)
> +ALSA_TARGETS+=alsa-utils
> +endif
> +

> _______________________________________________
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> buildroot at uclibc.org
> http://busybox.net/mailman/listinfo/buildroot

[Buildroot] Easier adding of new packages / alsa-lib & utils

[Ulf Samuelsson]

>> As I see it we lack three things in the build.
>> 1) Ability to use backup sites if the main site is temporarily or permanently down.
> To 1) The main problem, I think, is that somebody has to maintain these
> backup-addresses or to provide a backup-server containing all possibly
> needed files. The rest of the problem is easy, as it can be solved
> either by a scipt wrapping wget or by a File-downloading-rule caring
> about backup-locations
> 

I think buildroot should contain the mechanism to do it,
and the user should be able to provide a backup server location.
I have seen discussions where the conclusion is that if someone
wants to be compliant with GPL, then they need to provide the source
for everything, so everyone using buildroot in products
needs to provide their own backup server.


>> 2) Handling of distributions.    I.E. ability to specify which package version you 
>>     want to build in a way which is separated from the package build script.
> To 2) This is a more difficult problem since you have to give the user a
> chance to specify all supported versions. If you want to integrate it
> into the current configuration-process you would have to specify a field
> or list for every single package - Leaving the user alone with the
> decision of hundred of different versions.

As I envision the mechanism, you should be able to generate a file containing
all the current versions using a simple command.

I.E:     make distrib

Each package makefile fragment would contain.

<package>-distrib:
            echo <package>_VER    >> .distrib
---------------

The Config.in should have a configuration string which, if not empty,
the file, with the filename in the string should be included by Makefile
in the beginning.

---------------
The makefile fragment in each package should test if
<package>_VER is defined, and if not, it should define it.


Alternatively, you always have a configuration file containing the version info
and you either use this or you use your own,

I see the use of this functionality as a help for newbies, where people with more
experience select the package versions and create a distribution which are then used
by people less experience.,

> 
> According to the introduction, we would have enough up to here :)
> 

>> 3) Ability to generate binary packages which can be added/removed from 
>>     the root fs.
>> 
> To 3) You have something like this, even if it could be improved. If you
> "make package" the first time you build and install the package. If you
> afterwards do "make package-clean" you remove it from the rootfs. Doing
> "make package" again installs the stuff...
> 

But it requires that you have access to the package compile tree which is sometimes undesirable.



Best Regards
Ulf Samuelsson                ulf at atmel.com
Atmel Nordic AB
Mail:  Box 2033, 174 02 Sundbyberg, Sweden
Visit:  Kavalleriv?gen 24, 174 58 Sundbyberg, Sweden
Phone +46 (8) 441 54 22     Fax +46 (8) 441 54 29
GSM    +46 (706) 22 44 57

[Buildroot] Easier adding of new packages / alsa-lib & utils

[Benjamin Tietz]

On Sat, Jun 09, 2007 at 09:53:01AM +0200, Ulf Samuelsson wrote:
> >> As I see it we lack three things in the build.
> >> 1) Ability to use backup sites if the main site is temporarily or permanently down.
> > To 1) The main problem, I think, is that somebody has to maintain these
> > backup-addresses or to provide a backup-server containing all possibly
> > needed files. The rest of the problem is easy, as it can be solved
> > either by a scipt wrapping wget or by a File-downloading-rule caring
> > about backup-locations
> > 
> 
> I think buildroot should contain the mechanism to do it,
> and the user should be able to provide a backup server location.
> I have seen discussions where the conclusion is that if someone
> wants to be compliant with GPL, then they need to provide the source
> for everything, so everyone using buildroot in products
> needs to provide their own backup server.

To implement the mechanism isn't the problem. The problem is to maintain
either the backup-server or the backup-locations. For the first case you
have to find also a solution to the problem, who is allowed to place new
package-sources there. If everybody can write, the serverspace will be
abused very soon. If not everybody, but only a few people, can write
there, then how will new packages find their way to this location,
especially when maintained by other people.

under http://buildroot.uclibc.org/downloads/buildroot-sources/ you even
can find such a backup-directory. The last update was on Jan 11 2005.

> 
> 
> >> 2) Handling of distributions.    I.E. ability to specify which package version you 
> >>     want to build in a way which is separated from the package build script.
> > To 2) This is a more difficult problem since you have to give the user a
> > chance to specify all supported versions. If you want to integrate it
> > into the current configuration-process you would have to specify a field
> > or list for every single package - Leaving the user alone with the
> > decision of hundred of different versions.
> 
> As I envision the mechanism, you should be able to generate a file containing
> all the current versions using a simple command.
> 
> I.E:     make distrib
> 
> Each package makefile fragment would contain.
> 
> <package>-distrib:
>             echo <package>_VER    >> .distrib
> ---------------
> 
> The Config.in should have a configuration string which, if not empty,
> the file, with the filename in the string should be included by Makefile
> in the beginning.
> 
> ---------------
> The makefile fragment in each package should test if
> <package>_VER is defined, and if not, it should define it.
> 

That would be possible... But remember, that for such an distributional
package you only should save the versions of the software _in use_.
Maybe in some days I could send a real solution

> 
> Alternatively, you always have a configuration file containing the version info
> and you either use this or you use your own,
> 
> I see the use of this functionality as a help for newbies, where people with more
> experience select the package versions and create a distribution which are then used
> by people less experience.,
> 
> > 
> > According to the introduction, we would have enough up to here :)
> > 
> 
> >> 3) Ability to generate binary packages which can be added/removed from 
> >>     the root fs.
> >> 
> > To 3) You have something like this, even if it could be improved. If you
> > "make package" the first time you build and install the package. If you
> > afterwards do "make package-clean" you remove it from the rootfs. Doing
> > "make package" again installs the stuff...
> > 
> 
> But it requires that you have access to the package compile tree which is sometimes undesirable.
> 

I think, I've understand your problem... Let me think about

> 
> 
> Best Regards
> Ulf Samuelsson                ulf at atmel.com
> Atmel Nordic AB
> Mail:  Box 2033, 174 02 Sundbyberg, Sweden
> Visit:  Kavalleriv?gen 24, 174 58 Sundbyberg, Sweden
> Phone +46 (8) 441 54 22     Fax +46 (8) 441 54 29
> GSM    +46 (706) 22 44 57
> 

[Buildroot] Easier adding of new packages / Distribution

[Benjamin Tietz]

On Sat, Jun 09, 2007 at 02:12:25PM +0200, Benjamin Tietz wrote:
> On Sat, Jun 09, 2007 at 09:53:01AM +0200, Ulf Samuelsson wrote:
> > 
> > 
> > >> 2) Handling of distributions.    I.E. ability to specify which package version you 
> > >>     want to build in a way which is separated from the package build script.
> > > To 2) This is a more difficult problem since you have to give the user a
> > > chance to specify all supported versions. If you want to integrate it
> > > into the current configuration-process you would have to specify a field
> > > or list for every single package - Leaving the user alone with the
> > > decision of hundred of different versions.
> > 
> > As I envision the mechanism, you should be able to generate a file containing
> > all the current versions using a simple command.
> > 
> > I.E:     make distrib
> > 
> > Each package makefile fragment would contain.
> > 
> > <package>-distrib:
> >             echo <package>_VER    >> .distrib
> > ---------------
> > 
> > The Config.in should have a configuration string which, if not empty,
> > the file, with the filename in the string should be included by Makefile
> > in the beginning.
> > 
> > ---------------
> > The makefile fragment in each package should test if
> > <package>_VER is defined, and if not, it should define it.
> > 
> 
> That would be possible... But remember, that for such an distributional
> package you only should save the versions of the software _in use_.
> Maybe in some days I could send a real solution
> 
> > 
> > Alternatively, you always have a configuration file containing the version info
> > and you either use this or you use your own,
> > 
> > I see the use of this functionality as a help for newbies, where people with more
> > experience select the package versions and create a distribution which are then used
> > by people less experience.,
Just to have a point to start with... the following patch

There is now a Configuration option for an distributional file (which
silently will overwrite possibly different settings from the
.config-file)

To create such an file, just "make distribution"

up to now there are some caveats: Not all packages have an variable
PACKAGE_VERSION, on the other hand there are some packages - especially
the toolchain - which aren't enabled by BR2_PACKAGE_PACKAGE. But these
are the assumptions made by the standard rule. So all these packages
need a special ...-distrib rule or should be modified to fit.

best regards

Benjamin

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[Buildroot] Easier adding of new packages / alsa-lib & utils

[Thomas Lundquist]

On Fri, Jun 08, 2007 at 08:22:26AM +0200, Ulf Samuelsson wrote:

> 3) Ability to generate binary packages which can be added/removed from 
>     the root fs.

I have this ready, both .deb and ipkgs (none of'em with all the
versioning, descriptiuon md5 and so on, yet) but haven't had time to
wrap up a good patch.



Thomas.