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* [devel] gcc-common
@ 2008-03-22  5:21 Alexey Tourbin
  2008-03-22 13:08 ` Dmitry V. Levin
  0 siblings, 1 reply; 4+ messages in thread
From: Alexey Tourbin @ 2008-03-22  5:21 UTC (permalink / raw)
  To: devel

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Надо бы почистить и пересобрать пакет gcc-common.
После пересборки появится циклическая зависимость gcc-common <-> gcc4.1.
Это циклическая зависимость правильная.

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [devel] gcc-common
  2008-03-22  5:21 [devel] gcc-common Alexey Tourbin
@ 2008-03-22 13:08 ` Dmitry V. Levin
  2008-03-22 20:05   ` Alexey Tourbin
  0 siblings, 1 reply; 4+ messages in thread
From: Dmitry V. Levin @ 2008-03-22 13:08 UTC (permalink / raw)
  To: ALT Devel discussion list

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On Sat, Mar 22, 2008 at 08:21:42AM +0300, Alexey Tourbin wrote:
> Надо бы почистить и пересобрать пакет gcc-common.

Если ты знаешь, что почистить, то почисть, пожалуйста.

> После пересборки появится циклическая зависимость gcc-common <-> gcc4.1.
> Это циклическая зависимость правильная.

Есть уверенность в том, что цикл будет разорван правильно?


-- 
ldv

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [devel] gcc-common
  2008-03-22 13:08 ` Dmitry V. Levin
@ 2008-03-22 20:05   ` Alexey Tourbin
  2008-03-23 20:39     ` Alexey Tourbin
  0 siblings, 1 reply; 4+ messages in thread
From: Alexey Tourbin @ 2008-03-22 20:05 UTC (permalink / raw)
  To: ALT Devel discussion list

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On Sat, Mar 22, 2008 at 04:08:08PM +0300, Dmitry V. Levin wrote:
> On Sat, Mar 22, 2008 at 08:21:42AM +0300, Alexey Tourbin wrote:
> > Надо бы почистить и пересобрать пакет gcc-common.
> Если ты знаешь, что почистить, то почисть, пожалуйста.

Я удалил очень старые зависимости (до Master 2.4).

> > После пересборки появится циклическая зависимость gcc-common <-> gcc4.1.
> > Это циклическая зависимость правильная.
> Есть уверенность в том, что цикл будет разорван правильно?

В gcc4.1.spec везде стоит PreReq:

$ grep -m9 -e -common gcc4.1.spec
PreReq: %alternatives_deps, gcc-common >= 1.4.7
PreReq: %alternatives_deps, gcc-common >= 1.4.7
PreReq: %alternatives_deps, gcc-c++-common >= 1.4.7
PreReq: %alternatives_deps, gcc-c++-common >= 1.4.7
PreReq: %alternatives_deps, gcc-c++-common >= 1.4.7
PreReq: %alternatives_deps, gcc-common >= 1.4.7
PreReq: gcc-common >= 1.4.7
PreReq: %alternatives_deps, gcc-common >= 1.4.7
PreReq: %alternatives_deps, gcc-common >= 1.4.7
$

Вот buildreq теперь будет путаться.

$ /usr/share/buildreqs/optimize_package_list gcc-c++-common gcc4.1-c++   
tsort: -: input contains a loop:
tsort: gcc-c++-common
tsort: gcc4.1-c++
gcc-c++-common
$

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^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: [devel] gcc-common
  2008-03-22 20:05   ` Alexey Tourbin
@ 2008-03-23 20:39     ` Alexey Tourbin
  0 siblings, 0 replies; 4+ messages in thread
From: Alexey Tourbin @ 2008-03-23 20:39 UTC (permalink / raw)
  To: ALT Devel discussion list

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On Sat, Mar 22, 2008 at 11:05:45PM +0300, Alexey Tourbin wrote:
> Вот buildreq теперь будет путаться.
> 
> $ /usr/share/buildreqs/optimize_package_list gcc-c++-common gcc4.1-c++   
> tsort: -: input contains a loop:
> tsort: gcc-c++-common
> tsort: gcc4.1-c++
> gcc-c++-common
> $

Урро!  Я реализовал разрыв циклов, типичных для -common пакетов,
в пользу не-common пакета.

commit c43c3bc22120846b84560aa83bb18fb8276037ae
Author: Alexey Tourbin <at@altlinux>
Date:   Sun Mar 23 23:30:16 2008 +0300

    optimize_package_list: detect simple RV-loops, select the package with non-virtual dependency
    
    $ ./rpm-utils/optimize_package_list gcc-common gcc4.1
    optimize_package_list: simple RV-loop (first package takes precedence):
    gcc4.1 <-> gcc-common
    gcc4.1
    $ ./rpm-utils/optimize_package_list sendmail-common postfix
    optimize_package_list: simple RV-loop (first package takes precedence):
    postfix <-> sendmail-common
    postfix
    $

diff --git a/rpm-utils/optimize_package_list b/rpm-utils/optimize_package_list
index cdf6b99..3311e77 100755
--- a/rpm-utils/optimize_package_list
+++ b/rpm-utils/optimize_package_list
@@ -66,8 +66,29 @@ if [ -s R-amb ]; then
 	sed -e 's/ / -> /g' <nRn-amb
 fi >&2
 
+# Assist loop breaks.  Consider this:
+#	gcc-common	/usr/bin/i586-alt-linux-gcc	gcc4.1
+#	gcc4.1		gcc-common			gcc-common
+# We would like gcc4.1 to take precedence, because gcc4.1 explicitly
+# requires gcc-common.
+awk '$2==$3{print$1,$3}' <nRn |sort -u >nn-real
+awk '$2!=$3{print$1,$3}' <nRn |sort -u >nn-virt
+comm -23 nn-virt nn-real >nn-virt-only
+mv -f nn-virt-only nn-virt
+# nn-real:	gcc4.1		gcc-common
+# nn-virt:	gcc-common	gcc4.1
+awk '{print$2,$1}' <nn-virt |sort -u >reverse-nn-virt
+comm -12 reverse-nn-virt nn-real >nn-real-virt-loop
+if [ -s nn-real-virt-loop ]; then
+	echo "$PROG: simple RV-loop (first package takes precedence):"
+	sed -e 's/ / <-> /g' <nn-real-virt-loop
+	awk '{print$2,$1}' <nn-real-virt-loop |sort -u >nn-virt-bad
+	comm -23 nn-virt nn-virt-bad >nn-virt-good
+	mv -f nn-virt-good nn-virt
+fi >&2
+
 # make list of package pairs where first depends on second
-cut -d' ' -f1,3 <nRn |sort -u >nn
+sort -u nn-real nn-virt >nn
 
 # tsort this list of pairs
 tsort <nn >t || [ -s t ]

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^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2008-03-23 20:39 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-03-22  5:21 [devel] gcc-common Alexey Tourbin
2008-03-22 13:08 ` Dmitry V. Levin
2008-03-22 20:05   ` Alexey Tourbin
2008-03-23 20:39     ` Alexey Tourbin

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