bin/148250: [patch] xz memory limit prevents port building on low-memory systems

[Warren Block]

>Number:         148250
>Category:       bin
>Synopsis:       [patch] xz memory limit prevents port building on low-memory systems
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Jun 29 23:50:02 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Warren Block
>Release:        8-stable
>Organization:
>Environment:
FreeBSD lightning 8.1-PRERELEASE FreeBSD 8.1-PRERELEASE #0: Tue Jun 29 14:05:16 MDT 2010     root at lightning:/usr/obj/usr/src/sys/LIGHTNING  i386
>Description:
xz's automatic memory limit prevents building of ports like png even on machines with adequate memory.  In this forum post, a user with a 128M system can't build the png port, which only needs 65M.

The patch uses the same method as ${GZIP} to add the -Mmax option to xz, making all memory available.
>How-To-Repeat:
Try to build graphics/png on a system with 128M of RAM.
>Fix:
Apply attached patch.

Patch attached with submission follows:

--- Mk/bsd.commands.mk.orig	2010-06-29 17:20:30.000000000 -0600
+++ Mk/bsd.commands.mk	2010-06-29 17:36:57.000000000 -0600
@@ -93,10 +93,11 @@
 XMKMF?=		${LOCALBASE}/bin/xmkmf -a
 YACC?=		/usr/bin/yacc
 
+XZ?=	-Mmax
 .if exists(/usr/bin/xz)
-XZ_CMD?=	/usr/bin/xz
+XZ_CMD?=	/usr/bin/xz ${XZ}
 .else
-XZ_CMD?=	${LOCALBASE}/bin/xz
+XZ_CMD?=	${LOCALBASE}/bin/xz ${XZ}
 .endif
 
 .if exists(/sbin/md5)


>Release-Note:
>Audit-Trail:
>Unformatted: