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| author | Simon Marlow <marlowsd@gmail.com> | 2008-05-09 14:53:34 +0000 |
|---|---|---|
| committer | Simon Marlow <marlowsd@gmail.com> | 2008-05-09 14:53:34 +0000 |
| commit | e6a38b39a74c451c65f1dec1b4522e1d1e3c5c24 (patch) | |
| tree | b162530247265f989140e0dbedcd3877ad75d12a /libraries/base/Debug | |
| parent | e2294ec140f9cc296774722a3cb57ba883e8088e (diff) | |
| download | haskell-e6a38b39a74c451c65f1dec1b4522e1d1e3c5c24.tar.gz | |
Avoid calling varargs functions using the FFI
Calling varargs functions is explicitly deprecated according to the
FFI specification. It used to work, just about, but it broke with the
recent changes to the via-C backend to not use header files.
Diffstat (limited to 'libraries/base/Debug')
| -rw-r--r-- | libraries/base/Debug/Trace.hs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/libraries/base/Debug/Trace.hs b/libraries/base/Debug/Trace.hs index c30c8111d1..742044e4d4 100644 --- a/libraries/base/Debug/Trace.hs +++ b/libraries/base/Debug/Trace.hs @@ -41,7 +41,9 @@ putTraceMsg msg = do withCString msg $ \cmsg -> debugBelch cfmt cmsg -foreign import ccall unsafe "RtsMessages.h debugBelch" +-- don't use debugBelch() directly, because we cannot call varargs functions +-- using the FFI. +foreign import ccall unsafe "HsBase.h debugBelch2" debugBelch :: CString -> CString -> IO () #endif |