diff --git a/.gitignore b/.gitignore
index 07c191bb0b74..ea00bbdcab4a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,4 @@
 # Project-specific files
-=
 arch
 tgz
 lcl
diff --git a/bin/package b/bin/package
index d014c576f84d..2799f0dbea1e 100755
--- a/bin/package
+++ b/bin/package
@@ -32,6 +32,7 @@ esac
 checksh()
 {
 	egrep 'Version.*(88|1993)' $1 >/dev/null 2>&1 ||
+	$1 -c '(( 2 + 2 ))' >/dev/null 2>&1 &&
 	$1 -c '(( .sh.version >= 20111111 ))' >/dev/null 2>&1
 }
 
diff --git a/src/cmd/INIT/package.sh b/src/cmd/INIT/package.sh
index 0c353db6734a..7d28b020ef1c 100644
--- a/src/cmd/INIT/package.sh
+++ b/src/cmd/INIT/package.sh
@@ -31,6 +31,7 @@ esac
 checksh()
 {
 	egrep 'Version.*(88|1993)' $1 >/dev/null 2>&1 ||
+	$1 -c '(( 2 + 2 ))' >/dev/null 2>&1 &&
 	$1 -c '(( .sh.version >= 20111111 ))' >/dev/null 2>&1
 }