- Add logic so extra plugins can build without installing base components.

--- src/filter/CMakeLists.txt.orig	2026-08-18 11:34:08 UTC
+++ src/filter/CMakeLists.txt
@@ -16,6 +16,7 @@ endif (${Cairo_FOUND})
   add_subdirectory (shake0scillate)
 endif (${Cairo_FOUND})
 
+if (NOT BUILD_EXTRA_PLUGINS)
 add_subdirectory (3dflippo)
 add_subdirectory (aech0r)
 add_subdirectory (alpha0ps)
@@ -108,3 +109,4 @@ add_subdirectory (water)
 add_subdirectory (vertigo)
 add_subdirectory (vignette)
 add_subdirectory (water)
+endif()