differences in configure flags

[James Gregurich]

a couple of questions:

Why doesn't CPPFLAGS contain ${output} like the other c-language flags?



        append_list_to_environment_value configure "CFLAGS" ${output}${configure.cflags}
        append_list_to_environment_value configure "CPPFLAGS" ${configure.cppflags}
        append_list_to_environment_value configure "CXXFLAGS" ${output}${configure.cxxflags}
        append_list_to_environment_value configure "OBJCFLAGS" ${output}${configure.objcflags}



from configure_main:





        # add extra flags that are conditional on whether we're building universal
        if {[variant_exists universal] && [variant_isset universal]} {
            foreach flags {CFLAGS OBJCFLAGS} {
                append_list_to_environment_value configure $flags ${configure.universal_cflags}
            }
            append_list_to_environment_value configure "CXXFLAGS" ${configure.universal_cxxflags}
            append_list_to_environment_value configure "CPPFLAGS" ${configure.universal_cppflags}
            append_list_to_environment_value configure "LDFLAGS" ${configure.universal_ldflags}
            eval configure.pre_args-append ${configure.universal_args}
        } else {
            foreach {tool flags} {cc CFLAGS cxx CXXFLAGS objc OBJCFLAGS f77 FFLAGS f90 F90FLAGS fc FCFLAGS ld LDFLAGS} {
                append_list_to_environment_value configure $flags [set configure.${tool}_archflags]
                if {${configure.march} != {}} {
                    append_list_to_environment_value configure $flags "-march=${configure.march}"
                }
                if {${configure.mtune} != {}} {
                    append_list_to_environment_value configure $flags "-mtune=${configure.mtune}"
                }
            }
        }



Why isn't CPPFLAGS being updated with the same info as the other c-language flags? Should it be?


-James

 
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