Bug 218859 - net/dhcp6: sometimes fails to build with poudriere due to parallel make issues
Summary: net/dhcp6: sometimes fails to build with poudriere due to parallel make issues
Status: New
Alias: None
Product: Ports & Packages
Classification: Unclassified
Component: Individual Port(s) (show other bugs)
Version: Latest
Hardware: Any Any
: --- Affects Only Me
Assignee: Hiroki Sato
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2017-04-24 21:21 UTC by leres
Modified: 2017-04-24 21:23 UTC (History)
0 users

See Also:
bugzilla: maintainer-feedback? (hrs)


Attachments
patch (264 bytes, patch)
2017-04-24 21:22 UTC, leres
no flags Details | Diff
Poudriere build log showing failure to build (37.69 KB, text/plain)
2017-04-24 21:23 UTC, leres
no flags Details

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Description leres 2017-04-24 21:21:59 UTC
I have 24-core poudriere build server that does daily builds and is great for detecting parallel build problems. Occasionally it fails to build net/dhcp6 and when it does the build log shows three attempts to rename y.tab.c to cfparse.c but only the two succeed (see attached).

I believe the problem is that the Makefile has an explicit (but unnecessary dependency) for y.tab.h. When a parallel make happens to build y.tab.h and cftoken.c at the same time one of these fails.

Clearly y.tab.h will be created as a side effect of running flex on cftoken.l to create cftoken.c and only cftoken.c includes y.tab.h so my patch removes the unnecessary dependency. 

I also submitted the attached patch to upstream back in February:

    https://sourceforge.net/p/wide-dhcpv6/bugs/38/
Comment 1 leres 2017-04-24 21:22:28 UTC
Created attachment 182059 [details]
patch
Comment 2 leres 2017-04-24 21:23:41 UTC
Created attachment 182060 [details]
Poudriere build log showing failure to build