(FREAD, FWRITE): Undef these macros if they were defined

before including ldfcn.h.

From-SVN: r2780

diff --git a/gcc/collect2.c b/gcc/collect2.c
index 4b20174..70c14ec 100644 (file)
--- a/gcc/collect2.c
+++ b/gcc/collect2.c
@@ -103,7 +103,8 @@ extern int errno;
   ((magic) == U802WRMAGIC || (magic) == U802ROMAGIC || (magic) == U802TOCMAGIC)
 #endif
 
-#if defined (_AIX) || defined (USG)
+/* Many versions of ldfcn.h define these.  */
+#ifdef FREAD
 #undef FREAD
 #undef FWRITE
 #endif