--- a/CMakeLists.txt	2026-09-23 10:10:58.000000000 +0200
+++ b/CMakeLists.txt	2026-10-19 21:15:26.753778500 +0200
@@ -10,7 +10,7 @@ project(mapnik
     VERSION ${MAPNIK_MAJOR_VERSION}.${MAPNIK_MINOR_VERSION}.${MAPNIK_PATCH_VERSION}
     HOMEPAGE_URL "https://mapnik.org/"
     DESCRIPTION "Mapnik is an open source toolkit for developing mapping applications"
-    LANGUAGES CXX
+    LANGUAGES C CXX
 )
 message(STATUS "mapnik version: ${PROJECT_VERSION}")