0005468: Ocamlbuild should preserve package order if there are no dependencies

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0005468

OCaml

OCamlbuild (the tool)

public

2012-01-08 18:51

2012-09-16 22:44

Reporter

dario

Assigned To

meyer

Priority

normal

Severity

minor

Reproducibility

always

Status

closed

Resolution

fixed

Platform

OS Version

Product Version

Target Version

4.00.1+dev

Fixed in Version

Summary

0005468: Ocamlbuild should preserve package order if there are no dependencies

Description

Consider packages foo, bar1, and bar2, where both bar1 and bar2 depend on foo. Moreover, bar2 should appear before bar1 when linking.

The problem is if Ocamlbuild is given the _tags file below, it will correctly put foo before bar1 and bar2, but it's also likely to change the order between bar1 and bar2, causing linking problems.

true: package(bar2), package(bar1), package(foo)

This sort of problem could be easily avoided if Ocamlbuild were to preserve the package order when there is no known dependency between packages.

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Notes
(0006921) xleroy (administrator) 2012-02-14 20:21	Sounds very reasonable. Xavier C, could you please try to confirm the issue and see where it comes from in the ocamlbuild sources? Thanks!

(0008038) meyer (developer) 2012-09-10 04:45	Fixed in r12909.

(0008039) meyer (developer) 2012-09-10 04:46	dario could you please double check if that's what you expect, fix is on trunk. Thanks.

(0008064) dario (reporter) 2012-09-11 14:22	Just checked a small dummy example with 4.01.0+dev8_2012-09-10. The order is now preserved indeed -- thanks! I still haven't been able to test it with the real world project which prompted my initial bug report though, because it depends on some external libraries which are not yet compatible with 4.00. Nevertheless, I assume it's safe to close this issue. If eventually I run into any problems I'll reopen it...

Issue History
Date Modified	Username	Field	Change
2012-01-08 18:51	dario	New Issue
2012-02-02 15:17	protz	Category	OCamlbuild => OCamlbuild (the tool)
2012-02-14 20:21	xleroy	Note Added: 0006921
2012-02-14 20:21	xleroy	Status	new => acknowledged
2012-07-10 11:48	doligez	Target Version	=> 4.01.0+dev
2012-07-31 13:36	doligez	Target Version	4.01.0+dev => 4.00.1+dev
2012-09-04 19:37	meyer	Assigned To	=> meyer
2012-09-04 19:37	meyer	Status	acknowledged => assigned
2012-09-10 04:45	meyer	Note Added: 0008038
2012-09-10 04:46	meyer	Note Added: 0008039
2012-09-10 04:46	meyer	Status	assigned => feedback
2012-09-11 14:22	dario	Note Added: 0008064
2012-09-11 14:22	dario	Status	feedback => assigned
2012-09-16 22:44	meyer	Status	assigned => closed
2012-09-16 22:44	meyer	Resolution	open => fixed