put all :hover styles within @media (hover: hover)

scss/mixins/_background-variant.scss

@@ -5,7 +5,9 @@
   #{$parent} {
     background-color: $color;
   }
-  a#{$parent}:hover {
-    background-color: darken($color, 10%);
+  a#{$parent} {
+    @include hover {
+      background-color: darken($color, 10%);
+    }
   }
 }

scss/mixins/_buttons.scss

@@ -10,15 +10,22 @@
 //  $shadow: inset 0 1px 0 rgba(255,255,255,.15), 0 1px 1px rgba(0,0,0,.075);
 //  .box-shadow($shadow);
 
-  &:hover,
+  $active-background: darken($background, 10%);
+  $active-border: darken($border, 12%);
+
   &:focus,
   &.focus,
   &:active,
   &.active,
   .open > &.dropdown-toggle {
     color: $color;
-    background-color: darken($background, 10%);
-        border-color: darken($border, 12%);
+    background-color: $active-background;
+        border-color: $active-border;
+  }
+  @include hover {
+    color: $color;
+    background-color: $active-background;
+        border-color: $active-border;
   }
   &:active,
   &.active,
@@ -31,7 +38,6 @@
   &:disabled,
   fieldset[disabled] & {
     &,
-    &:hover,
     &:focus,
     &.focus,
     &:active,
@@ -39,6 +45,10 @@
       background-color: $background;
           border-color: $border;
     }
+    @include hover {
+      background-color: $background;
+          border-color: $border;
+    }
   }
 
   .badge {

scss/mixins/_hover.scss

@@ -0,0 +1,28 @@
+@mixin hover {
+  // See Media Queries Level 4: http://drafts.csswg.org/mediaqueries/#hover
+  // Currently shimmed by https://github.com/cvrebert/mq4-hover-hover-shim
+  @media (hover: hover) {
+    &:hover { @content }
+  }
+}
+
+@mixin hover-focus {
+  &:focus { @content }
+  @include hover { @content }
+}
+
+@mixin plain-hover-focus {
+  &,
+  &:focus {
+    @content
+  }
+  @include hover { @content }
+}
+
+@mixin hover-focus-active {
+  &:focus,
+  &:active {
+    @content
+  }
+  @include hover { @content }
+}

scss/mixins/_label.scss

@@ -4,8 +4,7 @@
   background-color: $color;
 
   &[href] {
-    &:hover,
-    &:focus {
+    @include hover-focus {
       background-color: darken($color, 10%);
     }
   }

scss/mixins/_list-group.scss

@@ -13,18 +13,17 @@
       color: inherit;
     }
 
-    &:hover,
-    &:focus {
+    @include hover-focus {
       color: $color;
       background-color: darken($background, 5%);
     }
 
-    &.active,
-    &.active:hover,
-    &.active:focus {
-      color: #fff;
-      background-color: $color;
-      border-color: $color;
+    &.active {
+      @include plain-hover-focus {
+        color: #fff;
+        background-color: $color;
+        border-color: $color;
+      }
     }
   }
 }

scss/mixins/_table-row.scss

@@ -17,12 +17,26 @@
   // Hover states for `.table-hover`
   // Note: this is not available for cells or rows within `thead` or `tfoot`.
   .table-hover > tbody > tr {
-    > td.#{$state}:hover,
-    > th.#{$state}:hover,
-    &.#{$state}:hover > td,
-    &:hover > .#{$state},
-    &.#{$state}:hover > th {
-      background-color: darken($background, 5%);
+    $hover-background: darken($background, 5%);
+
+    > td.#{$state},
+    > th.#{$state} {
+      @include hover {
+        background-color: $hover-background;
+      }
+    }
+    &.#{$state} {
+      @include hover {
+        > td,
+        > th {
+          background-color: $hover-background;
+        }
+      }
+    }
+    @include hover {
+      > .#{$state} {
+        background-color: $hover-background;
+      }
     }
   }
 }

scss/mixins/_text-emphasis.scss

@@ -4,7 +4,9 @@
   #{$parent} {
     color: $color;
   }
-  a#{$parent}:hover {
-    color: darken($color, 10%);
+  a#{$parent} {
+    @include hover {
+      color: darken($color, 10%);
+    }
   }
 }