Hi,
compiling KiCad gave me a bunch of those warnings, indicating problems
with the eagle importer:
```
./pcbnew/eagle_plugin.cpp:1401:21: warning: implicit conversion from
'double' to 'int' changes value from 0.05 to 0 [-Wliteral-conversion]
width = DEFAULT_EDGE_WIDTH;
~ ^~~~~~~~~~~~~~~~~~
./include/board_design_settings.h:35:39: note: expanded from macro
'DEFAULT_EDGE_WIDTH'
#define DEFAULT_EDGE_WIDTH 0.05
^~~~
```
I looked into the issue and found out that the handling for width==0 in
circles is currently wrongly implemented (it creates a filled circle),
beside of the obvious double -> int issue.
In case of wire with==0 I was not able to find a behavior other than it
is no longer visible in the editor. I kept the old behavior defined for
now (use default width), but correctly implemented it using the defined
default line width.
Regards, Thomas
