From 5b398910ca9695d325e6aaed60b1a23e3b7096d9 Mon Sep 17 00:00:00 2001
From: ADAM David Alan Martin <adam@recursive.engineer>
Date: Mon, 31 Aug 2026 12:46:55 -0400
Subject: [PATCH] Decline to detect wireless when `lspci` is absent.

---
 tcshrc.system.Linux | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tcshrc.system.Linux b/tcshrc.system.Linux
index bba77f6..514eafe 100644
--- a/tcshrc.system.Linux
+++ b/tcshrc.system.Linux
@@ -24,9 +24,11 @@ if( ${#battery_locations} > 0 ) then
 	end
 endif
 
-set wireless_cards=( `lspci | grep '\(WiFi\|Wireless\)'` )
-if( $#wireless_cards > 0 ) then
-	setenv CSHENV_ENABLE_PROMPT_WIFI
+if ( -e `which lspci` ) then
+	set wireless_cards=( `lspci | grep '\(WiFi\|Wireless\)'` )
+	if( $#wireless_cards > 0 ) then
+		setenv CSHENV_ENABLE_PROMPT_WIFI
+	endif
 endif
 
 # Set the acknowledgement bit, essentially