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-rw-r--r--lib/mkmf.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 78521d3875..7b213c2f62 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -775,6 +775,7 @@ SRC
/*top*/
extern int t(void);
#{MAIN_DOES_NOTHING 't'}
+#{"extern void #{call};" if decltype}
int t(void) { #{call}; return 0; }
SRC
end