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-rw-r--r--tool/fake.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/tool/fake.rb b/tool/fake.rb
index 9fe95a5bd6..353a7b7035 100644
--- a/tool/fake.rb
+++ b/tool/fake.rb
@@ -46,7 +46,8 @@ prehook = proc do |extmk|
end
join = proc {|*args| File.join(*args).sub!(/\A(?:\.\/)*/, '')}
$topdir ||= builddir
- $top_srcdir ||= join[$topdir, srcdir]
+ $top_srcdir ||= (File.identical?(top_srcdir, dir = join[$topdir, srcdir]) ?
+ dir : top_srcdir)
$extout = '$(topdir)/.ext'
$extout_prefix = '$(extout)$(target_prefix)/'
config = RbConfig::CONFIG