fclose() should now accept a NULL parameter (doesn't clobber errno, though, as, at

least in theory, that should still contain the error from an earlier operation).
This might fix bug #500.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17228 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/system/libroot/posix/glibc/libio/iofclose.c

@@ -43,6 +43,9 @@ _IO_new_fclose (fp)
 {
   int status;
 
+  if (fp == NULL)
+    return -1;
+
   CHECK_FILE(fp, EOF);
 
 #if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1)