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Date: Wed, 24 Jan 2018 02:33:42 +0000
From: Andre Renaud <>
Subject: Re: seg fault at src/string/strlen.c:15

On Wed, 24 Jan 2018 at 15:28 Rich Felker <> wrote:

> On Tue, Jan 23, 2018 at 05:07:32PM -0800, Po-yi Wang wrote:
> > (gdb) run --version
> > Starting program: /tmp/build/make-4.1/make-4.1 --version
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > strlen (s=0x0) at src/string/strlen.c:15
> > 15              for (w = (const void *)s; !HASZERO(*w); w++);
> > (gdb)
> This means make is calling strlen(0), so the bug is somewhere else --
> in whatever causing the string pointer passed to strlen to be a null
> pointer. Can you show a full backtrace (bt) rather than just the point
> of the crash?

It's quite possible that this is a known bug in Make 4.1

Does it go away if /dev/pts is properly mounted?


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