From c88a51cce87e1c48d8ecfdd5be429b87dd0b88e6 Mon Sep 17 00:00:00 2001
From: Bastien Nocera <hadess@hadess.net>
Date: Thu, 11 Oct 2018 14:28:04 +0200
Subject: [PATCH] build: Refuse to build without any drivers

---
 meson.build | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/meson.build b/meson.build
index 6109b321..87d7adfa 100644
--- a/meson.build
+++ b/meson.build
@@ -52,6 +52,10 @@ if drivers == [ 'all' ]
     drivers = all_drivers
 endif
 
+if drivers.length() == 0 or drivers[0] == ''
+    error('Cannot build libfprint without drivers, please specify a valid value for the drivers option')
+endif
+
 nss_dep = dependency('', required: false)
 imaging_dep = dependency('', required: false)
 foreach driver: drivers