[En-Nut-Discussion] error compiling nutconf in Kubuntu: conversion from `const char[6]' to `const wxString' is ambiguous

[Jose Vallet]

Hello.

I am trying to install NutOS in Kubuntu following the instructions from
http://www.ethernut.de/en/documents/debiansage.html
Well, not exactly those ones, because there are already some packages 
available for ubuntu. Anyway, I had a problem.

The versions that I use (all of them installed with synaptic).

gcc (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
g++ (GCC) 4.0.3 (Ubuntu 4.0.3-1ubuntu5)
autoconf (GNU Autoconf) 2.59
automake (GNU automake) 1.9.6
libgtk2.0-dev
libwxgtk2.6dev
Lua 5.0.3
doxygen 1.4.6
graphviz 2.2.1-1

When I download ethernut 4.2.1 and do configure and make I get the 
following error (sorry for the Spanish...)

****************************************
if g++ -DHAVE_CONFIG_H -I. -I. -I../.. 
-I/usr/lib/wx/include/gtk2-unicode-release-2.6 -I/usr/include/wx-2.6 
-DGTK_NO_CHECK_CASTS -D__WXGTK__ -D_FILE_OFFSET_BITS=64 -D_LARGE_FILES 
-D_LARGEFILE_SOURCE=1 -DNO_GCC_PRAGMA   -g -O2 -MT nutconf-settings.o 
-MD -MP -MF ".deps/nutconf-settings.Tpo" -c -o nutconf-settings.o `test 
-f 'settings.cpp' || echo './'`settings.cpp; \
         then mv -f ".deps/nutconf-settings.Tpo" 
".deps/nutconf-settings.Po"; else rm -f ".deps/nutconf-settings.Tpo"; 
exit 1; fi
settings.cpp: In constructor ‘CSettings::CSettings()’:
settings.cpp:147: error: la conversión de ‘const char [6]’ a ‘const 
wxString’ es ambigua
/usr/include/wx-2.6/wx/string.h:642: nota: los candidatos son: 
wxString::wxString(wxChar, size_t) <coincidencia cercana>
/usr/include/wx-2.6/wx/string.h:632: nota: 
wxString::wxString(int) <coincidencia cercana>
settings.cpp:151: error: la conversión de ‘const char [6]’ a ‘const 
wxString’ es ambigua
/usr/include/wx-2.6/wx/string.h:642: nota: los candidatos son: 
wxString::wxString(wxChar, size_t) <coincidencia cercana>
/usr/include/wx-2.6/wx/string.h:632: nota: 
wxString::wxString(int) <coincidencia cercana>
settings.cpp:158: error: la conversión de ‘const char [6]’ a ‘const 
wxString’ es ambigua
/usr/include/wx-2.6/wx/string.h:642: nota: los candidatos son: 
wxString::wxString(wxChar, size_t) <coincidencia cercana>
/usr/include/wx-2.6/wx/string.h:632: nota: 
wxString::wxString(int) <coincidencia cercana>
make[2]: *** [nutconf-settings.o] Error 1
make[2]: se sale del directorio `/home/jose/ethernut-4.2.1/tools/nutconf'
make[1]: *** [all-recursive] Error 1
make[1]: se sale del directorio `/home/jose/ethernut-4.2.1'
make: *** [all] Error 2
************************************************

then I open tools/nutconf/settings.cpp and find the problematic lines

Line 147
     fn.AppendDir("tools");
Line 151
     fn.AppendDir("linux");
Line 158
     if (!m_source_dir_default.Contains("/nut/")) {

I change them respectively to (I got the hint from
http://www.wxwidgets.org/wiki/index.php/WxString)

fn.AppendDir(wxT("tools"));
fn.AppendDir(wxT("linux"));
if (!m_source_dir_default.Contains(wxT("/nut/"))) {

and then the compilation process finishes OK, and after some playing 
with the configurator I am able to compile the libraries, create the 
sample directory and compile the examples.

If the solution provided is OK, it might be so that line 49 
fn.AppendDir("win32");
could be changed in a similar way

Regards.
José