Re: [PATCH v3 0/3] MR6715: Draft: Support separated debug information for PE images.

[Jacek Caban (＠jacek)]

Jacek Caban (@jacek) commented about configure.ac:
>  if test "x$ac_debug_format_seen" = x
>  then
>    case $wine_crossdebug in
> -
>    *dwarf)  WINE_TRY_PE_CFLAGS([-gdwarf-4]) ;;
> -
>    dnl clang refuses by default to generate the dwarf sections with long names
> -
>    *dwarf)  WINE_TRY_PE_CFLAGS([-gdwarf-4],[AS_VAR_APPEND([${wine_arch}_CFLAGS],[" -gdwarf-4"])],
> -
>                                [WINE_TRY_PE_CFLAGS([-gdwarf-4 -Wl,-debug:dwarf],
> -
>                                                    [AS_VAR_APPEND([${wine_arch}_CFLAGS],[" -gdwarf-4"])
> -
>                                                     AS_VAR_APPEND([${wine_arch}_LDFLAGS],[" -Wl,-debug:dwarf"])])]) ;;

This looks more complicated than it needs to be, how about checking just `-Wl,-debug:dwarf` first:
```
WINE_TRY_PE_CFLAGS([-Wl,-debug:dwarf],[AS_VAR_APPEND([${wine_arch}_LDFLAGS],[" -Wl,-debug:dwarf"]) CFLAGS="$CFLAGS -Wl,-debug:dwarf"])
WINE_TRY_PE_CFLAGS([-gdwarf-4])
```