2 files changed, 5 insertions, 1 deletions
diff --git a/cppawk b/cppawk
index 7911908..6d56295 100755
--- a/cppawk
+++ b/cppawk
@@ -74,7 +74,7 @@ die()
 
 while [ $# -gt 0 ] ; do
   case $1 in
-  -M* )
+  -M?* )
     die "-M family of cpp options not supported"
     ;;
   -U* | -D* | -iquote* )
diff --git a/testcases b/testcases
index b52e737..ba4ed64 100644
--- a/testcases
+++ b/testcases
@@ -3,3 +3,7 @@
 :
 hello
 --
+2:
+./cppawk -M 'BEGIN { print 1000000000000000000000000 + 1 }'
+:
+1000000000000000000000001