r255637 - in /trunk/gcc: ChangeLog doc/sourcebu...

[vries@gcc.gnu.org]

Author: vries
Date: Thu Dec 14 15:01:47 2017
New Revision: 255637

URL: https://gcc.gnu.org/viewcvs?rev=255637&root=gcc&view=rev
Log:
Require effective target weak_undefined for visibility-22.c

2017-12-14  Tom de Vries  <tom@codesourcery.com>

	* lib/target-supports.exp (check_effective_target_weak_undefined): New
	proc.
	* gcc.dg/visibility-22.c: Require effective target weak_undefined.

	* doc/sourcebuild.texi (Effective-Target Keywords, Other attributes):
	Add item for weak_undefined.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/doc/sourcebuild.texi
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/gcc.dg/visibility-22.c
    trunk/gcc/testsuite/lib/target-supports.exp