http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54695
Bug #: 54695
Summary: Bogus warning for module variable in USE statement
with -Wall
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: fortran
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: spam.brian.tay...@gmail.com
Created attachment 28263
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28263
Fortran source file that generates bogus warning when compiled with -Wall
When compiled with -Wall, gfortran gives a bogus warning with the attached
code. Clearly, the module variable "b" has not been imported, yet gfortran
warns about it being explicitly imported. This only seems to be triggered by
module variables that are stored in common blocks.
user@host $ gfortran-4.7 -Wall -c bogus_warning.f90
bogus_warning.f90:8.4:
use mod, only: a
1
Warning: Unused module variable 'b' which has been explicitly imported at (1)
user@host $ gfortran-4.7 --version
GNU Fortran (GCC) 4.7.0
Copyright (C) 2012 Free Software Foundation, Inc.
user@host $ uname -a
Darwin MBP.local 11.4.0 Darwin Kernel Version 11.4.0: Mon Apr 9 19:32:15 PDT
2012; root:xnu-1699.26.8~1/RELEASE_X86_64 x86_64
