NetBSD defines _REENTRANT in its header files, so compiling ghc gives

redefinition warnings for all files that are including includes/Rts.h.

Contributed by: Krister Walfridsson <krister.walfridsson@gmail.com>

diff --git a/includes/Rts.h b/includes/Rts.h
index d965450..b5737d4 100644 (file)
--- a/includes/Rts.h
+++ b/includes/Rts.h
@@ -51,7 +51,9 @@ extern "C" {
 
 /* Needed to get the macro version of errno on some OSs, and also to
    get prototypes for the _r versions of C library functions. */
+#ifndef _REENTRANT
 #define _REENTRANT 1
+#endif
 
 /*
  * We often want to know the size of something in units of an