openpkg/release.pod

Tue, 29 Mar 2011 20:04:34 +0200

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Tue, 29 Mar 2011 20:04:34 +0200
changeset 334
4a34d7a82eab
child 428
f880f219c566
permissions
-rw-r--r--

Rework package yet again, correcting and introducing new buildconf logic:
Conditionally disable bootstrap stage comparison correctly, correct
english grammar, better find system as(1) and ld(1), indotruce detailed
optimization option messages, more completely guess cpu types, allow
profiled bootstrapping without a preinstalled GCC because many other
compilers have long since implemented 64-bit arithmetic, instruct make
to build sequentially (not in sparallel) when building a profiled
bootstrap as GCC online documents recommend, and generally improve
comment blocks.

The single most important correction in this changeset relates to the
GCC changed optimization policy since at least GCC 4.5, in which -march
is always passed and not always correctly guessed. In the case of this
package, allowing GCC to guess the architecture leads to wild build
errors at various subcomponents (zlib, libgcc, libiberty...) and
bootstrap stages. It seems quite platform specific, and the safest
approach to correcting this seems to be explicitly always specifying the
-march argument when bootstrapping GCC. Because the best choice 'native'
is not available when bootstrapping using a foreign (non GCC) compiler,
a guess is made according to rpmmacros l_platform in that case.

It is questionable as to whether these recent optimization changes
on the part of GCC or this package are compatible with each other,
or if either are complete or correct at all. At least applying these
corrections allows this package to build again in most cases test.

michael@13 1 ##
michael@13 2 ## release -- OpenPKG Release Utility
michael@13 3 ## Copyright (c) 2000-2007 OpenPKG Foundation e.V. <http://openpkg.net/>
michael@13 4 ## Copyright (c) 2000-2007 Ralf S. Engelschall <http://engelschall.com/>
michael@13 5 ##
michael@13 6 ## Permission to use, copy, modify, and distribute this software for
michael@13 7 ## any purpose with or without fee is hereby granted, provided that
michael@13 8 ## the above copyright notice and this permission notice appear in all
michael@13 9 ## copies.
michael@13 10 ##
michael@13 11 ## THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
michael@13 12 ## WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
michael@13 13 ## MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
michael@13 14 ## IN NO EVENT SHALL THE AUTHORS AND COPYRIGHT HOLDERS AND THEIR
michael@13 15 ## CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@13 16 ## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@13 17 ## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
michael@13 18 ## USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
michael@13 19 ## ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
michael@13 20 ## OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
michael@13 21 ## OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
michael@13 22 ## SUCH DAMAGE.
michael@13 23 ##
michael@13 24
michael@13 25 =pod
michael@13 26
michael@13 27 =head1 NAME
michael@13 28
michael@13 29 B<openpkg release> - OpenPKG Release Utility
michael@13 30
michael@13 31 =head1 SYNOPSIS
michael@13 32
michael@13 33 B<openpkg release> [B<-F>|B<--fmt> I<format>]
michael@13 34
michael@13 35 =head1 DESCRIPTION
michael@13 36
michael@13 37 The B<openpkg release> command displays the OpenPKG release tag and
michael@13 38 distribution URL. The release tag uniquely identifies an OpenPKG
michael@13 39 distribution and the distribution URL is the location where the
michael@13 40 distribution packages and indices are stored.
michael@13 41
michael@13 42 =head1 OPTIONS
michael@13 43
michael@13 44 =over 4
michael@13 45
michael@13 46 =item B<-F>, B<--fmt> I<format>
michael@13 47
michael@13 48 The output format specification. The argument I<format> is an arbitrary
michael@13 49 string which can contain the special expansion constructs "C<%t>" for
michael@13 50 expanding the release tag, "C<%u>" for expanding the distribution URL
michael@13 51 and "C<\n>" for expanding an embedded newline character.
michael@13 52 The instance UUID information is also availble by expanding
michael@13 53 C<%r> to UUID_REGISTRY, C<%i> to UUID_INSTANCE, C<%p> to UUID_PLATFORM.
michael@13 54 The default I<format> is "C<OpenPKG-%t %u>".
michael@13 55
michael@13 56 =item B<-r>, B<--release> I<release>
michael@13 57
michael@13 58 The package "C<Release>" header value to use for deriving the release
michael@13 59 tag. The values in the F<@l_prefix@/etc/openpkg/release> file and the
michael@13 60 "C<Release>" header of the bootstrap package B<openpkg> are ignored if
michael@13 61 this option is used.
michael@13 62
michael@13 63 =back
michael@13 64
michael@13 65 =head1 FILES
michael@13 66
michael@13 67 =over 4
michael@13 68
michael@13 69 =item F<@l_prefix@/etc/openpkg/release>
michael@13 70
michael@13 71 This optional configuration file can be used to explicitly set values
michael@13 72 for the OpenPKG release tag and distribution URLs. It consists of lines
michael@13 73 with variable name/value pairs. The following configuration variables
michael@13 74 are recognized:
michael@13 75
michael@13 76 =over 4
michael@13 77
michael@13 78 =item B<TAG=>I<tag>
michael@13 79
michael@13 80 The default I<tag> is automatically derived from the "C<Version>" header
michael@13 81 of the OpenPKG bootstrap package B<openpkg>. One usually only sets this
michael@13 82 explicitly to a value if a bootstrap package is used from a foreign
michael@13 83 distribution version.
michael@13 84
michael@13 85 =item B<URL=>I<url>
michael@13 86
michael@13 87 The fully-qualified distribution URL based on either the "C<ftp>",
michael@13 88 "C<http>" or "C<file>" URL schemes. If I<url> contains a trailing
michael@13 89 "C</*>", this is expanded according to the I<tag> value of the B<TAG>
michael@13 90 variable and the corresponding filesystem layout on C<ftp.openpkg.org>.
michael@13 91 The default I<url> is "C<ftp://ftp.openpkg.org/*>".
michael@13 92
michael@13 93 =over
michael@13 94
michael@13 95 =back
michael@13 96
michael@13 97 =head1 EXAMPLE
michael@13 98
michael@13 99 $ openpkg release
michael@13 100 OpenPKG-CURRENT ftp://ftp.openpkg.org/current/SRC/
michael@13 101
michael@13 102 $ openpkg release --fmt=%t
michael@13 103 CURRENT
michael@13 104
michael@13 105 $ openpkg release --fmt=%u
michael@13 106 ftp://ftp.openpkg.org/current/SRC/
michael@13 107
michael@13 108 $ openpkg release --fmt="OpenPKG %t is located at:\\n%u"
michael@13 109 OpenPKG CURRENT is located at:
michael@13 110 ftp://ftp.openpkg.org/current/SRC/
michael@13 111
michael@13 112 $ openpkg release --release=2.5.4 --fmt=%t
michael@13 113 2.5-RELEASE
michael@13 114
michael@13 115 $ cat /openpkg/etc/openpkg/release
michael@13 116 TAG=2-STABLE-20060622
michael@13 117 URL=ftp://ftp.example.com/mirror/openpkg.org/*
michael@13 118
michael@13 119 =head1 SEE ALSO
michael@13 120
michael@13 121 uuid(8)
michael@13 122
michael@13 123 =head1 HISTORY
michael@13 124
michael@13 125 The B<openpkg release> command first appeared in B<OpenPKG 2-STABLE-20060622>.
michael@13 126
michael@13 127 =cut
michael@13 128

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