thread.c (rb_cThreadShield): make static

Nothing outside of thread.c accesses this variable, so avoid
cluttering up the global namespace with it.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52478 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/thread.c b/thread.c
index dfbcfcb8ab..bed65517a0 100644
--- a/thread.c
+++ b/thread.c
@@ -75,7 +75,7 @@
 #define THREAD_DEBUG 0
 #endif
 
-VALUE rb_cThreadShield;
+static VALUE rb_cThreadShield;
 
 static VALUE sym_immediate;
 static VALUE sym_on_blocking;