Hello Bruno,


thanks for your help.

> The error message "expected ',' or '...' before 'string'" points to
> a problem with the 'restrict' keyword.
> 
> An appropriate definition of 'restrict' should be available in the
> gnulib- generated config.h file.

OK.  Note that this is a new error; it didn't happen in July 2019 (the
last time I've tried to build ttfautohint with mxe and Qt5).

> * Can you verify that ddlineedit.moc.cpp starts with a '#include
>   <config.h>' statement? [1]

It doesn't – it is an auto-generated Qt file.  However, the file starts
with

```
#include <memory>
#include "ddlineedit.h"
...
```

and `ddlineedit.h`'s first code lines are

```
#ifndef DDLINEEDIT_H_
#define DDLINEEDIT_H_

#include <config.h>
```

> * Can you show the block of preprocessor statements in <config.h> that
>   defines 'restrict'?

```
/* Define to the equivalent of the C99 'restrict' keyword, or to
   nothing if this is not supported.  Do not define if restrict is
   supported only directly.  */
#define restrict __restrict__
/* Work around a bug in older versions of Sun C++, which did not
   #define __restrict__ or support _Restrict or __restrict__
   even though the corresponding Sun C compiler ended up with
   "#define restrict _Restrict" or "#define restrict __restrict__"
   in the previous line.  This workaround can be removed once
   we assume Oracle Developer Studio 12.5 (2016) or later.  */
#if defined __SUNPRO_CC && !defined __RESTRICT && !defined __restrict__
# define _Restrict
# define __restrict__
#endif
```

> * Can you show the command that is being executed (make V=1)?  A
>   symbolic placeholder like 'CXX' is useless for debugging a
>   compilation failure.

```
i686-w64-mingw32.static-g++ -std=gnu++11 -DHAVE_CONFIG_H -I. -I.. \
  -I../lib -I../gnulib/src \
  -I../gnulib/src
  -I/home/wl/git/mxe/usr/i686-w64-mingw32.static/include/freetype2 \
  -DUNICODE -D_UNICODE -DWIN32 -DMINGW_HAS_SECURE_API=1 -DQT_NO_DEBUG \
  -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN -I. \
  -I. -I/home/wl/git/mxe/usr/i686-w64-mingw32.static/qt5/include \
  -I/home/wl/git/mxe/usr/i686-w64-mingw32.static/qt5/include/QtWidgets \
  -I/home/wl/git/mxe/usr/i686-w64-mingw32.static/qt5/include/QtGui \
  -I/home/wl/git/mxe/usr/i686-w64-mingw32.static/qt5/include/QtCore \
  -Irelease \
  -I/home/wl/git/mxe/usr/i686-w64-mingw32.static/qt5/mkspecs/win32-g++ \
  -DBUILD_GUI \
  -I/home/wl/git/mxe/usr/i686-w64-mingw32.static/include/freetype2 \
  -pipe -fno-keep-inline-dllexport -O2 -std=gnu++11 -Wall -Wextra \
  -Wextra -ffunction-sections -fdata-sections -fexceptions -mthreads \
  -DUNICODE -D_UNICODE -DWIN32 -DMINGW_HAS_SECURE_API=1 -DQT_NO_DEBUG \
  -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -DQT_NEEDS_QMAIN -g -O2 \
  -MT ttfautohintGUI-ddlineedit.moc.o -MD -MP -MF \
  .deps/ttfautohintGUI-ddlineedit.moc.Tpo -c \
   -o ttfautohintGUI-ddlineedit.moc.o `test -f 'ddlineedit.moc.cpp' \
   || echo './'`ddlineedit.moc.cpp
```

> * What are the C compiler and C++ compiler versions that you use in
>   this build?

gcc & g++ 5.5.0, which are the default compilers of mxe – I've
attached the `config.log` file for completeness.


    Werner