ship/build: set -o posix may crash the shell if it is not existing

1 files changed, 1 insertions, 2 deletions

diff --git a/ship/build b/ship/build
index 3f96cfe1..730f72ee 100755
--- a/ship/build
+++ b/ship/build
@@ -43,8 +43,7 @@ EOF
 ## usage: #@strict -> build_strict_mode \1
 build_strict_mode() { cat<<EOF
 $1a\\
-set -euf\\
-set -o posix || :
+set -euf
 EOF
 }