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Date: Fri, 27 Jul 2012 20:31:00 -0000
From: Thomas Koenig <tkoenig@netcologne.de>
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To: janisjo@codesourcery.com
CC: Janis Johnson <janis_johnson@mentor.com>,  "fortran@gcc.gnu.org" <fortran@gcc.gnu.org>, gcc-patches <gcc-patches@gcc.gnu.org>
Subject: Re: [patch, fortran] Fix PR 54033, problems with -I
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Hi Janis,

> On 07/26/2012 10:16 AM, Thomas Koenig wrote:
>
>> No test case because I couldn't figure out how to test for a
>> warning with no line number.
>
> Try using line number 0.

That didn't work for me. Using

! { dg-do compile }
! { dg-options "-I include_6.f90 -I missing_dir" }
! { dg-warning "not a directory" "missing directory" target *-*-* 0 }
! { dg-warning "does not exist" "nonexisting directory" target *-*-* 0 }
end

got me

Warning: Include directory "include_6.f90" does not exist^M
Warning: Include directory "missing_dir" does not exist^M
output is:
Warning: Include directory "include_6.f90" does not exist^M
Warning: Include directory "missing_dir" does not exist^M

FAIL: gfortran.dg/include_6.f90  -O  (test for excess errors)
Excess errors:
:0:0: Warning: Include directory "include_6.f90" does not exist
:0:0: Warning: Include directory "missing_dir" does not exist

and

! { dg-do compile }
! { dg-options "-I include_6.f90 -I missing_dir" }
! { dg-warning "not a directory" "missing directory" target *-*-* 0 }
! { dg-warning "does not exist" "nonexisting directory" target *-*-* 0 }
! { dg-excess-errors "Include directory" }
end

resulted in an XFAIL:

Warning: Include directory "include_6.f90" does not exist^M
Warning: Include directory "missing_dir" does not exist^M
output is:
Warning: Include directory "include_6.f90" does not exist^M
Warning: Include directory "missing_dir" does not exist^M

XFAIL: gfortran.dg/include_6.f90  -O  (test for excess errors)
Excess errors:
:0:0: Warning: Include directory "include_6.f90" does not exist
:0:0: Warning: Include directory "missing_dir" does not exist

so dg-excess-errors seems to imply XFAIL.

The problem may be related to the fact that, when we process the
options, we do not yet have a file name, so dejagnu may have trouble
parsing the warning.

Any other ideas?

	Thomas