1 files changed, 1 insertions, 1 deletions
diff --git a/ship/build b/ship/build
index 3f96cfe1..0e8e1013 100755
--- a/ship/build
+++ b/ship/build
@@ -44,7 +44,7 @@ EOF
 build_strict_mode() { cat<<EOF
 $1a\\
 set -euf\\
-set -o posix || :
+(set -o posix 2>/dev/null) && set -o posix || :
 EOF
 }