common.mk: no purelib

* common.mk (RUBYLIB): purelib option in runruby.rb is deprecated
  since r28841, so set to an empty list to get rid of a bogus path in
  child processes, which caused an insecure operation exception in
  test/ruby/test_encoding.rb:test_unsafe.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37719 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/common.mk b/common.mk
index af0dae63b4..a8450a05b9 100644
--- a/common.mk
+++ b/common.mk
@@ -10,7 +10,7 @@ Q1 = $(V:1=)
 Q = $(Q1:0=@)
 ECHO = $(ECHO1:0=@echo)
 
-RUBYLIB       = -
+RUBYLIB       = $(PATH_SEPARATOR)
 RUBYOPT       = -
 RUN_OPTS      = --disable-gems