2020-02-18  Thomas Koenig  <tkoenig@gcc.gnu.org>

	PR fortran/93599
	* io/async.c (destroy_adv_cond): Do not destroy lock.
	(async_io): Make sure au->lock is locked for finishing of thread.
	Do not lock/unlock around signalling emptysignal. Unlock au->lock
	before return.
	(init_adv_cond): Do not initialize lock.
	(enqueue_transfer): Unlock after signal.
	(enqueue_done_id): Likewise.
	(enqueue_done): Likewise.
	(enqueue_close): Likewise.
	(enqueue_data_transfer): Likewise.
	(async_wait_id): Do not lock/unlock around signalling au->work.
	(async_wait): Unlock after signal.
	* io/async.h (SIGNAL): Add comment about needed au->lock.
	Remove locking/unlocking of advcond->lock.
	(WAIT_SIGNAL_MUTEX): Add comment. Remove locking/unlocking of
	advcond->lock.  Unlock mutex only at the end.  Loop on
	__ghread_cond_wait returning zero.
	(REVOKE_SIGNAL): Add comment. Remove locking/unlocking of
	advcond->lock.
	(struct adv_cond): Remove mutex from struct.

2020-02-12  Sandra Loosemore  <sandra@codesourcery.com>

	PR libstdc++/79193
	PR libstdc++/88999

	* configure: Regenerated.

2020-01-24  Maciej W. Rozycki  <macro@wdc.com>

	* configure.ac: Handle `--with-toolexeclibdir='.
	* Makefile.in: Regenerate.
	* aclocal.m4: Regenerate.
	* configure: Regenerate.

2020-01-17  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/93234
	* io/unit.c (set_internal_unit): Set round and sign flags
	correctly.

2020-01-17  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/90374
	* io/format.c (parse_format_list): Zero width not allowed with
	FMT_D.
	* io/write_float.def (build_float_string): Include range of
	higher exponent values that require wider width.

2020-01-01  Jerry DeLisle  <jvdelisle@gcc.gnu.org>

	PR libfortran/90374
	* io/format.c (parse_format_list): Implement the E0 exponent
	width to provide smallest possible width for exponent fields.
	Refactor code for correct parsing and better readability of the
	code.
	* io/io.h (write_real_w0): Change interface to pass in pointer
	to fnode.
	* io/transfer.c: Update all calls to write_real_w0 to use the
	new interface.
	* io/write.c ((write_real_w0): Use the new interface with fnode
	to access both the decimal precision and exponent widths used in
	build_float_string.
	* io/write_float.def (build_float_string): Use the passed in
	exponent width to calculate the used width in the case of E0.

2020-01-01  Jakub Jelinek  <jakub@redhat.com>

	Update copyright years.

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