toolchain/37684: make dies if the dependecies of a target are too many and/or too long

[gbr%voidland.org@localhost]

>Number:         37684
>Category:       toolchain
>Synopsis:       make dies if the dependecies of a target are too many and/or 
>too long
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    toolchain-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jan 03 20:50:00 +0000 2008
>Originator:     Vladimir Panov
>Release:        4.0
>Organization:
>Environment:
NetBSD netbsd.voidland.org 4.0 NetBSD 4.0 (GENERIC) #0: Sun Dec 16 00:20:10 PST 
2007  
builds@wb34:/home/builds/ab/netbsd-4-0-RELEASE/i386/200712160005Z-obj/home/builds/ab/netbsd-4-0-RELEASE/src/sys/arch/i386/compile/GENERIC
 i386
>Description:
make dies with a segmentation fault if the dependencies of a target comprise a 
string which is longer than (approximately) 64 K (spaces, new lines and 
continuation backslashes included). This error did not exist in NetBSD 3.


>How-To-Repeat:
Create a makefile of the kind:

target: dep1 ... \
    ... \
    depn

which is bigger than 64 KB. The files target, dep1, ..., depn may not exist. 
Run make on this makefile.
>Fix: