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-rw-r--r--rts/posix/OSThreads.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/rts/posix/OSThreads.c b/rts/posix/OSThreads.c
index 79d395fd33..7aaa76a7fc 100644
--- 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.