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-rw-r--r--tool/fake.rb3
1 files changed, 3 insertions, 0 deletions
diff --git a/tool/fake.rb b/tool/fake.rb
index 03d2e4dd3f..99fc24e775 100644
--- a/tool/fake.rb
+++ b/tool/fake.rb
@@ -1,3 +1,6 @@
+# Used by Makefile and configure for building Ruby.
+# See common.mk and Makefile.in for details.
+
class File
sep = ("\\" if RUBY_PLATFORM =~ /mswin|bccwin|mingw/)
if sep != ALT_SEPARATOR