From 989d1443a70e54d8c5f68d949d797a107ec03d86 Mon Sep 17 00:00:00 2001
From: sof <unknown>
Date: Sat, 15 Aug 1998 16:45:07 +0000
Subject: [PATCH] [project @ 1998-08-15 16:45:07 by sof] #undef
 __GLASGOW_HASKELL__ before including "rtsdefs.h" (see
 source code for reasons as to why we need to do this now).

---
 ghc/runtime/prims/PrimArith.lc |   17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/ghc/runtime/prims/PrimArith.lc b/ghc/runtime/prims/PrimArith.lc
index 4cad02f..22646ef 100644
--- a/ghc/runtime/prims/PrimArith.lc
+++ b/ghc/runtime/prims/PrimArith.lc
@@ -7,6 +7,23 @@
 \begin{code}
 /* basic definitions, just as if this were a module */
 
+/* 
+  Sigh, ieee-flpt.h (which we need here) uses
+  __GLASGOW_HASKELL__ in a place or two to check
+  whether it is being included in a Haskell source file
+  or not. This is no longer the case! __GLASGOW_HASKELL__
+  is also defined when compiling .c files (C code that
+  depend on the RTS API needs to know this).
+  
+  An unfortunate state of affairs, but since this is
+  the only place where the two uses of __GLASGOW_HASKELL__
+  clash, we hack around and undefine it before including
+  the header file.    -- sof 8/98
+*/
+#ifdef __GLASGOW_HASKELL__
+#undef __GLASGOW_HASKELL__
+#endif
+
 #include "rtsdefs.h"
 \end{code}
 
-- 
1.7.10.4