http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54923
Bug #: 54923
Summary: Internal unit I/O error when using -malign-double
Classification: Unclassified
Product: gcc
Version: 4.6.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: gnu....@gishpuppy.com
Reading from of integer from character string fails with
Fortran runtime error: Internal unit I/O error
when compiling with -malign-double.
Background: This occurred when using the usual getarg(1,arg) construct and
linking against FFTW3, which requires data alignment.
Minimal example:
___
PROGRAM readtest
IMPLICIT NONE
CHARACTER*8 arg
INTEGER inputarg
arg=" 1 "
READ(arg,*) inputarg
PRINT *,"Argument supplied was: ", inputarg
RETURN
END
___
Compiling with gfortran without data alignment yields the expected result.
Compiling with -malign-double in the compiler options yields runtime error.
Thank you.
