--- CMakeLists.txt.orig	2025-08-01 21:31:20 UTC
+++ CMakeLists.txt
@@ -122,7 +122,7 @@ endif()
 endif()
 
 #-- minimalist build allowed with boost version older than 1.48
-set( SFCGAL_Boost_COMPONENTS thread system serialization )
+set( SFCGAL_Boost_COMPONENTS thread serialization )
 #-- program_options
 if ( SFCGAL_BUILD_TESTS OR SFCGAL_BUILD_EXAMPLES OR SFCGAL_BUILD_OSG )
 	set( SFCGAL_Boost_COMPONENTS chrono unit_test_framework filesystem program_options timer ${SFCGAL_Boost_COMPONENTS} )