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-rw-r--r--ext/io/console/extconf.rb3
1 files changed, 2 insertions, 1 deletions
diff --git a/ext/io/console/extconf.rb b/ext/io/console/extconf.rb
index a4dbd0f..381520a 100644
--- a/ext/io/console/extconf.rb
+++ b/ext/io/console/extconf.rb
@@ -6,7 +6,8 @@ hdr = nil
case
when macro_defined?("_WIN32", "")
# rb_w32_map_errno: 1.8.7
- vk_header = ($nmake == ?m ? "{$(srcdir)}" : "") << "win32_vk.chksum"
+ vk_header = File.exist?("#$srcdir/win32_vk.list") ? "chksum" : "inc"
+ vk_header = "#{'{$(srcdir)}' if $nmake == ?m}win32_vk.#{vk_header}"
when hdr = %w"termios.h termio.h".find {|h| have_header(h)}
have_func("cfmakeraw", hdr)
when have_header(hdr = "sgtty.h")