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Message-ID: <20120403171800.02e68fac@newbook>
Date: Tue, 3 Apr 2012 17:18:00 -0700
From: Isaac Dunham <idunham@...abit.com>
To: musl@...ts.openwall.com
Subject: Re: FTBFS on i386: aio_cancel.c relies on macro-protected
defines in aio.h
On Tue, 3 Apr 2012 19:16:23 -0400
Rich Felker <dalias@...ifal.cx> wrote:
> On Tue, Apr 03, 2012 at 04:09:25PM -0700, Isaac Dunham wrote:
> > aio_cancel.c won't build.
> > It seems one of the _*_SOURCE macros must be defined to build it,
> > and I'm not sure which one (guessing it's _POSIX_SOURCE or
> > _XOPEN_SOURCE ?).
>
> The default Makefile for musl has -D_XOPEN_SOURCE=700 in the CFLAGS.
> You cannot build the vast majority of musl if you remove this.
>
Figured out the problem: I had
CFLAGS = -fno-stack-protector
instead of
CFLAGS += -fno-stack-protector
In theory, it would be possible to avoid erroring on this by moving
-include config.mak to the top, using ?= instead of = for most
variables, and using += for CFLAGS.
But this might also allow other problems for those with less sane
default CFLAGS...
Also, putting *_LIBS in the section before config.mak does allow
freedom to shoot oneself in the foot in a similar manner--but if
someone can figure out that, they can probably find several more
ways to break it.
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