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From: Pedro Alves <palves@redhat.com>
To: Luca Pizzamiglio <luca.pizzamiglio@gmail.com>
Cc: gdb-patches@sourceware.org
Subject: Re: wrong bfd recognized
Date: Tue, 07 Feb 2012 20:15:00 -0000	[thread overview]
Message-ID: <4F318648.8@redhat.com> (raw)
In-Reply-To: <CAB88xy91dt7mOT4wjkaDCvDmj03LjZ_BAV7xTGsaeWe0ZdDe7Q@mail.gmail.com>

On 12/13/2011 03:13 PM, Luca Pizzamiglio wrote:
> +++ gdb/configure.ac	2011-12-13 15:34:08.559285673 +0100
> @@ -1854,7 +1854,7 @@
>  OLD_LDFLAGS=$LDFLAGS
>  OLD_LIBS=$LIBS
>  CFLAGS="$CFLAGS -I${srcdir}/../include -I../bfd -I${srcdir}/../bfd"
> -LDFLAGS="$LDFLAGS -L../bfd -L../libiberty"
> +LDFLAGS="-L../bfd -L../libiberty $LDFLAGS"

If you set LDFLAGS to -L/foo/lib , you presumably also set
CFLAGS to -I/foo/include .  In that case, after the patch, if there's a libbfd
in /foo/, you'll run the test with gdb's bfd, but compile it against e.g., the
bfd.h from /foo/include.  You may not see this happen with /usr/local/include
because gcc usually ignores -I/usr/local/include as being a duplicate of a
system header path.

IOW, it'd make sense to also do:

- CFLAGS="$CFLAGS -I${srcdir}/../include -I../bfd -I${srcdir}/../bfd"
+ CFLAGS="-I${srcdir}/../include -I../bfd -I${srcdir}/../bfd $CFLAGS"

-- 
Pedro Alves


  parent reply	other threads:[~2012-02-07 20:15 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-13 15:29 Luca Pizzamiglio
2011-12-20 14:58 ` Tom Tromey
2011-12-21 12:24   ` Luca Pizzamiglio
2011-12-21 18:50     ` Tom Tromey
2011-12-29 12:18       ` Luca Pizzamiglio
2011-12-29 19:02         ` Joel Brobecker
2012-01-02 10:04           ` Luca Pizzamiglio
2012-02-06 19:33             ` Tom Tromey
2012-02-07 16:25               ` Luca Pizzamiglio
2012-02-07 20:15 ` Pedro Alves [this message]
2012-02-10 13:55   ` Pedro Alves
2012-02-10 13:59     ` Luca Pizzamiglio
2012-02-10 14:02       ` Pedro Alves

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