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Date:      Mon, 21 Feb 2022 10:50:31 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 262092] net/samba413: Improve build time
Message-ID:  <bug-262092-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D262092

            Bug ID: 262092
           Summary: net/samba413: Improve build time
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: timur@FreeBSD.org
          Reporter: chris@chrullrich.net
          Assignee: timur@FreeBSD.org
             Flags: maintainer-feedback?(timur@FreeBSD.org)

Created attachment 231985
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D231985&action=
=3Dedit
Patch.

Samba's Python-based build system, waf, will with high probability rebuild =
the
entire source during stage because it does not maintain the order of compil=
er
arguments. This appears to defeat its own minimal-rebuild logic, and defeats
ccache in most cases.

Patch attached; reducing build time by ~50 %. If ccache is in use, it does =
not
waste cache space on single-use objects and thereby improves the overall hit
rate of a shared ccache.

Two successive poudriere builds without the patch had port times of 13:18 a=
nd
13:22 minutes respectively. With the patch, the times were 6:05 and 5:47
minutes, all measured with "hot" ccache (i.e. the times are for the ccache
lookups only, and the builds without the patch had cache hits for the diffe=
rent
command lines as well).

The upstream distribution's root Makefile already sets PYTHONHASHSEED to av=
oid
this issue, but the port skips it by invoking waf directly.

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