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-rw-r--r--include/ruby/missing.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/ruby/missing.h b/include/ruby/missing.h
index 660edb529d..7cb2d9233c 100644
--- a/include/ruby/missing.h
+++ b/include/ruby/missing.h
@@ -191,6 +191,10 @@ RUBY_EXTERN int ruby_shutdown(int, int);
RUBY_EXTERN int ruby_close(int);
#endif
+#ifndef HAVE_SETPROCTITLE
+RUBY_EXTERN void setproctitle(const char *fmt, ...);
+#endif
+
#if defined __GNUC__ && __GNUC__ >= 4
#pragma GCC visibility pop
#endif