From 54e6b86d1541f998915bc2c34d42212c532e1f20 Mon Sep 17 00:00:00 2001
From: Tom Ryder <tom@sanctum.geek.nz>
Date: Sat, 17 Dec 2016 19:52:47 +1300
Subject: Second try at compatible ksh test

I guess this is my life now
---
 sh/shrc.d/ksh.sh | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

(limited to 'sh')

diff --git a/sh/shrc.d/ksh.sh b/sh/shrc.d/ksh.sh
index befa60ee..6c134e88 100644
--- a/sh/shrc.d/ksh.sh
+++ b/sh/shrc.d/ksh.sh
@@ -11,12 +11,10 @@
 # proceed ...
 if [ -z "$KSH_VERSION" ] ; then
 
-    # Do we have the '[[' builtin? Good start
-    command -v '[[' >/dev/null 2>&1 || return
-
-    # Use the '[[' builtin to test whether $.sh.version is set (yes, that's a
-    # real variable name)
-    [[ -v .sh.version ]] || return
+    # Test whether we have content in the .sh.version variable. The odd name
+    # causes at least Bash to panic, so we suppress errors, and we run it in a
+    # subshell to work around parsing error precedence.
+    ( test -n "${.sh.version}" ) 2>/dev/null || return
 
     # If it is, that's our KSH_VERSION
     KSH_VERSION=${.sh.version}
-- 
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