1 files changed, 1 insertions, 1 deletions

diff --git a/mig.in b/mig.in
index e268577..08d33e7 100644
--- a/mig.in
+++ b/mig.in
@@ -39,7 +39,7 @@ CC="${CC-${default_cc}}"
 default_cpp="@TARGET_CC@ -E -x c"
 cpp="${CPP-${default_cpp}}"
 
-cppflags=
+cppflags=-undef
 migflags=
 files=