https://bugs.gentoo.org/969020

--- a/SConstruct
+++ b/SConstruct
@@ -1177,7 +1177,7 @@ def printLocalInfo():
 
 printLocalInfo()
 
-boostLibs = [ "filesystem", "program_options", "system", "iostreams", "thread", "log" ]
+boostLibs = [ "filesystem", "program_options", "iostreams", "thread", "log" ]
 
 onlyServer = len( COMMAND_LINE_TARGETS ) == 0 or ( len( COMMAND_LINE_TARGETS ) == 1 and str( COMMAND_LINE_TARGETS[0] ) in [ "mongod" , "mongos" , "test" ] )
 
--- a/src/third_party/SConscript
+++ b/src/third_party/SConscript
@@ -347,7 +347,6 @@ if use_system_version_of_library("boost"):
             SYSLIBDEPS=[
                 env['LIBDEPS_BOOST_PROGRAM_OPTIONS_SYSLIBDEP'],
                 env['LIBDEPS_BOOST_FILESYSTEM_SYSLIBDEP'],
-                env['LIBDEPS_BOOST_SYSTEM_SYSLIBDEP'],
                 env['LIBDEPS_BOOST_IOSTREAMS_SYSLIBDEP'],
                 env['LIBDEPS_BOOST_THREAD_SYSLIBDEP'],
                 env['LIBDEPS_BOOST_LOG_SYSLIBDEP'],