Re: can't compile `stdlib.h` on mxe

[Werner LEMBERG]

>> It doesn't – it is an auto-generated Qt file.  However, the file
>> starts
>> with
>> ```
>> #include <memory>
>> #include "ddlineedit.h"
> 
> You could instead compile a file ddlineedit.config-moc.cpp, with the
> following contents:
> 
> #include <config.h>
> #include "ddlineedit.moc.cpp"

Yeah, this came to my mind, too, thanks!  However, I've now
implemented the following rule in my `Makefile.am` file, which seems
to work fine.

```
SUFFIXES = .moc.cpp .h

moc_verbose = $(moc_verbose_@AM_V@)
moc_verbose_ = $(moc_verbose_@AM_DEFAULT_V@)
moc_verbose_0 = @echo "  MOC     " $@;

.h.moc.cpp:
        $(moc_verbose){ \
          echo '#include <config.h>'; \
          $(MOC) ... $< ; \
        } > $@.tmp
        @mv $@.tmp $@
```


    Werner