Warning police: Avoid warning about unused variable

[ghc-hetmet.git] / rts / posix / OSThreads.c

diff --git a/rts/posix/OSThreads.c b/rts/posix/OSThreads.c
index 79d395f..7aaa76a 100644 (file)
--- a/rts/posix/OSThreads.c
+++ b/rts/posix/OSThreads.c
@@ -94,7 +94,7 @@ osThreadId()
 }
 
 rtsBool
-osThreadIsAlive(OSThreadId id)
+osThreadIsAlive(OSThreadId id STG_UNUSED)
 {
     // no good way to implement this on POSIX, AFAICT.  Returning true
     // is safe.