[Patch, fortran] Document libgfortran thread-safety

[Janne Blomqvist]

Hi,

continuing my monologue at
http://gcc.gnu.org/ml/fortran/2011-02/msg00028.html , here's a patch
that documents the thread-safety of libgfortran.

Tested with make pdf, Ok for trunk?

2011-02-05  Janne Blomqvist  <jb@gcc.gnu.org>

	* gfortran.texi (Thread-safety): New section.
	* intrinsic.texi (EXECUTE_COMMAND_LINE): Mention thread-safety.
	(GETENV): Likewise.
	(GET_ENVIRONMENT_VARIABLE): Likewise.
	(SYSTEM): Likewise.



-- 
Janne Blomqvist
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