http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58001
--- Comment #8 from Steve Kargl <sgk at troutmask dot apl.washington.edu> --- On Tue, Jul 30, 2013 at 06:16:27PM +0000, dominiq at lps dot ens.fr wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58001 > > --- Comment #7 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > > With -Wno-tabs, gfortran should report a warning for the > > occurence of every tab used in the context of a character > > from the Fortran character set. Taking your code, which I've > > deleted here, and replace all whitespace by tabs, I get the > > expected number of warnings. Historically, I wanted to use > > -Wtabs as you expected, but there was too much wailing on > > the gfortran lists, so it was changed to -Wno-tabs with the > > meaning that "no tabs are allowed" in the context of the > > Fortran character set. You'll notice that tabs within > > a literal character string are not flagged. > > I cannot understand the rationale of this choice, but I guess it's too late to > change it!-( > > > The history of -Wtabs verse -Wno-tabs can be found in the mailinglist > > archive. > > No interest to dig the archives on this issue. http://gcc.gnu.org/ml/fortran/2006-03/msg00226.html
