From d13614e3bb5e24e832b4172e18902114f271f393 Mon Sep 17 00:00:00 2001
From: Matt Hamilton <m@tthamilton.com>
Date: Fri, 8 Jan 2016 09:16:22 -0500
Subject: [PATCH] [prompt] change unset variable test

The old test, [[ ${var} ]] tests for unset AND zero-length strings.

Checking for zero length strings probably isn't that important. It is
enough to ensure that the variable is set.

Closes #18
---
 modules/prompt/init.zsh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/prompt/init.zsh b/modules/prompt/init.zsh
index 2ee8f3a..abe443c 100644
--- a/modules/prompt/init.zsh
+++ b/modules/prompt/init.zsh
@@ -2,7 +2,7 @@
 # load user-defined prompt
 #
 
-if [[ ! ${TERM} == (linux|*bsd*|dumb) ]] && [[ ${zprompt_theme} ]]; then
+if [[ ! ${TERM} == (linux|*bsd*|dumb) ]] && (( ${+zprompt_theme} )); then
   autoload -Uz promptinit && promptinit
   prompt ${zprompt_theme}
 fi