Where is OMP_CLAUSE_CHECK defined?

[Ian Lance Taylor]

Amittai Aviram <amittai.aviram@yale.edu> writes:

> But where's the definition of union tree_node?  Thanks!

Actually, sorry, a grep for "union tree_node" won't find the
definition.  It is in tree.h, though.  In mainline it starts like this:

union GTY ((ptr_alias (union lang_tree_node),
	    desc ("tree_node_structure (&%h)"), variable_size)) tree_node {

The stuff inside GTY disappears when the file is passed to the C or C++
compiler.  (For more information on GTY see
http://gcc.gnu.org/onlinedocs/gccint/Type-Information.html .)

Ian