lcd: T9014: resolve the LCDd driver path at runtime

The LCDd driver modules are shipped in the architecture dependent
multiarch library directory, but the template hardcoded the x86_64
path. On arm64 this pointed LCDd at a directory that does not exist,
so no driver could be loaded.

Derive the multiarch triplet at runtime and render it into LCDd.conf
instead of assuming x86_64.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/conf_mode/system_lcd.py b/src/conf_mode/system_lcd.py
index 1e97414dc..c9c30d2cc 100755
--- a/src/conf_mode/system_lcd.py
+++ b/src/conf_mode/system_lcd.py
@@ -15,6 +15,7 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import os
+import sysconfig
 
 from sys import exit
 
@@ -60,6 +61,10 @@ def generate(lcd):
     if 'device' in lcd:
         lcd['device'] = find_device_file(lcd['device'])
 
+    # LCDd driver modules are installed into the architecture dependent
+    # multiarch library path - resolve it at runtime
+    lcd['driver_path'] = f'/usr/lib/{sysconfig.get_config_var("MULTIARCH")}/lcdproc/'
+
     # Render config file for daemon LCDd
     render(lcdd_conf, 'lcd/LCDd.conf.j2', lcd)
     # Render config file for client lcdproc