diff --git a/stepmania/src/archutils/Unix/LinuxThreadHelpers.cpp b/stepmania/src/archutils/Unix/LinuxThreadHelpers.cpp
index 32c470dc0a..9fea71cb12 100644
--- a/stepmania/src/archutils/Unix/LinuxThreadHelpers.cpp
+++ b/stepmania/src/archutils/Unix/LinuxThreadHelpers.cpp
@@ -46,7 +46,7 @@ CString ThreadsVersion()
 }
 
 /* Crash-conditions-safe: */
-static bool UsingNPTL()
+bool UsingNPTL()
 {
 	char buf[1024] = "";
 	int ret = confstr( _CS_GNU_LIBPTHREAD_VERSION, buf, sizeof(buf) );
diff --git a/stepmania/src/archutils/Unix/LinuxThreadHelpers.h b/stepmania/src/archutils/Unix/LinuxThreadHelpers.h
index 743e4c9614..07b2795010 100644
--- a/stepmania/src/archutils/Unix/LinuxThreadHelpers.h
+++ b/stepmania/src/archutils/Unix/LinuxThreadHelpers.h
@@ -6,6 +6,9 @@ CString ThreadsVersion();
 /* Get the current thread's ThreadID. */
 int GetCurrentThreadId();
 
+/* Return true if NPTL libraries are in use, false if linuxthreads. */
+bool UsingNPTL();
+
 int SuspendThread( int ThreadID );
 int ResumeThread( int ThreadID );