http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58001
Bug ID: 58001
Summary: Make it possible to silence "Extension: Tab character
in format" warning
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: fortran
Assignee: unassigned at gcc dot gnu.org
Reporter: burnus at gcc dot gnu.org
For indenting the source code, gfortran warns only with -std=f* or with -Wtab.
However, for format strings, it always warns - and with -std=f* it even turns
the warning into an error! (see io.c's next_char_not_space)
Example:
1894 format( '123')
end
(The tab is before '123'. A tab in the string itself is not warned for.)
Maybe the best would be to disable this warning with -std=legacy - and refer to
-std=legacy in the -std=gnu warning?
