1 files changed, 4 insertions, 0 deletions

diff --git a/src/s/sol2-3.h b/src/s/sol2-3.h
index 2e5d068d193..891f7cded8b 100644
--- a/src/s/sol2-3.h
+++ b/src/s/sol2-3.h
@@ -48,3 +48,7 @@
     strncpy(pty_name, ptyname, sizeof(pty_name)); \
     pty_name[sizeof(pty_name) - 1] = 0;         \
   }
+
+/* David Miller <davem@caip.rutgers.edu> says vfork fails on 2.4.  */
+/* Brendan Kehoe <brendan@zen.org> says it also fails on 2.3.  */
+#undef HAVE_VFORK