#17865: deleting all default configure flags causes error. --------------------------------+------------------------------------------- Reporter: tonytung@… | Owner: macports-tickets@… Type: defect | Status: new Priority: Normal | Milestone: Component: base | Version: 1.7.0 Keywords: cppflags ldflags | Port: tcl --------------------------------+------------------------------------------- In the tcl port, -I${prefix}/include is removed from cppflags: {{{ configure.cppflags-delete -I${prefix}/include }}} When handle_option-delete processes this, it yields an empty string and unsets the option. {{{ ## # Handle option-delete # # @param option name of the option # @param args arguments proc handle_option-delete {option args} { global $option user_options option_procs if {![info exists user_options($option)] && [info exists $option]} { set temp [set $option] foreach val $args { set temp [ldelete $temp $val] } if {$temp eq ""} { unset $option } else { set $option $temp } } } }}} This results in portconfigure.tcl declaring ${configure.cppflags} as an unknown variable in configure_main(..), yielding this error message: {{{ Error: Target org.macports.configure returned: can't read "configure.cppflags": no such variable }}} Replacing these lines: {{{ append_list_to_environment_value configure "CPPFLAGS" ${configure.cppflags} append_list_to_environment_value configure "LDFLAGS" ${configure.ldflags} }}} with: {{{ catch {append_list_to_environment_value configure "CPPFLAGS" ${configure.cppflags}} catch {append_list_to_environment_value configure "LDFLAGS" ${configure.ldflags}} }}} seems to do the trick (i.e., everything builds fine). -- Ticket URL: <http://trac.macports.org/ticket/17865> MacPorts <http://www.macports.org/> Ports system for Mac OS