How can I report what I think a compiler's frontend bug

[Vincent R via Digitalmars-d]

On Monday, 21 March 2016 at 09:46:18 UTC, Vincent R wrote:
> On Monday, 21 March 2016 at 01:51:09 UTC, Marco Leise wrote:
>> Am Sun, 20 Mar 2016 22:37:37 +0000
>> schrieb Vincent R <lol at dlang.org>:
>>
>> [...]
>
> Thanks and you see I was right to post here since I finally 
> found the problem and got an answer :-)

Unfortunately at the end I get a linker error:

10000000 at MLVD0032 MINGW64 ~/tmp/wxd/src/Samples
$ make
del *.cached
cd Controls
make
dmd -c -version=wx28 -version=__WXMSW__ -version=ANSI -I..\.. 
Controls.d
..\..\wx\common.d(153): Deprecation: function 
wx.common.new_Rectangle is deprecated
..\..\wx\common.d(153): Deprecation: function 
wx.common.new_Rectangle is deprecated

dmd -g -of..\..\bin\Controls.exe Controls.obj ..\..\wxd.lib 
..\..\wxc.lib 
C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxbase28d.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxbase28d_xml.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxmsw28d_core.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxmsw28d_adv.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxmsw28d_html.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxmsw28d_xrc.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxtiffd.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxjpegd.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxpngd.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxzlibd.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxregexd.lib  C:/DEV/msys64/home/10000000/tmp/wxWidgets-2.8.12\lib\dmc_lib\wxexpatd.lib   kernel32.lib user32.lib gdi32.lib comdlg32.lib winspool.lib winmm.lib shell32.lib comctl32.lib ole32.lib oleaut32.lib uuid.lib rpcrt4.lib advapi32.lib wsock32.lib odbc32.lib    -L/EXETYPE:NT -L/SU:WINDOWS:4.0
OPTLINK (R) for Win32  Release 8.00.17
Copyright (C) Digital Mars 1989-2013  All rights reserved.
http://www.digitalmars.com/ctg/optlink.html
C:\DEV\msys64\home\10000000\tmp\wxWidgets-2.8.12\lib\dmc_lib\wxexpatd.lib(xmlrole)
  Error 168: >64K Global Types