Color compatibility fixes for tlcs(1df)

NetBSD sh(1) doesn't like unassigned variables in arithmetic expressions

1 files changed, 3 insertions, 2 deletions

diff --git a/bin/tlcs b/bin/tlcs
index 4e101201..aa0d2f25 100755
--- a/bin/tlcs
+++ b/bin/tlcs
@@ -35,12 +35,13 @@ if [ "$#" -eq 0 ] ; then
 fi
 
 # If color was requested for the output, try and get a count of available
-# colors
+# colors; otherwise default to zero
 [ -n "$color" ] && color_count=$( {
     tput colors || tput Co
 } 2>/dev/null )
+: "${color_count:=0}"
 
-# If the color count is greater than 7, we'll color the output
+# If the color count is 8 or greater, we'll color the output
 if [ "$((color_count >= 8))" -eq 1 ] ; then
 
     # Color code for resetting