From bd8ed31e5d0131b660003c62d15eb5109777a6c7 Mon Sep 17 00:00:00 2001
From: PhilippeVay <philippe@vayssiere.fr>
Date: Fri, 16 Dec 2016 22:24:37 +0100
Subject: [PATCH] No effect if variable is null or doesn't exist

---
 sass/_config/_variables.scss | 5 +++--
 sass/library/_base.scss      | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/sass/_config/_variables.scss b/sass/_config/_variables.scss
index 0c29b4b..1dfbbe3 100644
--- a/sass/_config/_variables.scss
+++ b/sass/_config/_variables.scss
@@ -26,8 +26,9 @@ $color5    : #6FA939 !default;
 $base-color: $color1;
 $link-color: $color3;
 $base-background : $color2;
-$link-hover-color: $color4; // Make it equal to either $link-color or false if you don't want
-                            // any effect on links when focused/hovered
+// If you don't want any effect on focused/hovered links,
+// comment variable below or make it equal to either $link-color or false or null
+$link-hover-color: $color4;
 $brand-primary: $color5;
 
 
diff --git a/sass/library/_base.scss b/sass/library/_base.scss
index cd25ea9..72e9acc 100644
--- a/sass/library/_base.scss
+++ b/sass/library/_base.scss
@@ -32,11 +32,12 @@ a {
 
   // No styling on focus/hover if there's no effect. Avoids to then have to
   // override it countless times. See Issue #232
-  @if ($link-hover-color != $link-color and $link-hover-color != false) {
+  @if variable_exists(link-hover-color) and
+      ( null == index( ($link-color, null, false), $link-hover-color) ) {
     &:focus,
     &:hover,
     &:active {
-        color: $link-hover-color;
+      color: $link-hover-color;
     }
   }
 }