Problems compiling against wxWidgets 3.0

[WoFo]

Dear Experts,

I'm trying to compile the examples against wxWidgets 3.0, and I am getting an error related to wx/log.h:

from mathplot.cpp

// This method updates the buffers m_trans_shape_xs/ys, and the precomputed bounding box.
void mpMovableObject::ShapeUpdated()
{
    // Just in case...
    if (m_shape_xs.size()!=m_shape_ys.size())
    {
        ::wxLogError(wxT("[mpMovableObject::ShapeUpdated] Error, m_shape_xs and m_shape_ys have different lengths!"));

For the last line, the error message I get is:

In file included from /home/wo/Desktop/install/wxMathPlot/wxMathPlot-0.1.2/mathplot.cpp:36:0:
/home/wo/Desktop/install/wxMathPlot/wxMathPlot-0.1.2/mathplot.cpp: In member function 'void mpMovableObject::ShapeUpdated()':
/usr/include/wx-3.0/wx/log.h:1361:5: error: expected id-expression before 'for'
     for ( bool loopvar = false;                                               \
     ^
/usr/include/wx-3.0/wx/log.h:1367:5: note: in expansion of macro 'wxDO_LOG_IF_ENABLED_HELPER'
     wxDO_LOG_IF_ENABLED_HELPER(level, wxMAKE_UNIQUE_NAME(wxlogcheck))
     ^
/usr/include/wx-3.0/wx/log.h:1374:20: note: in expansion of macro 'wxDO_LOG_IF_ENABLED'
 #define wxLogError wxDO_LOG_IF_ENABLED(Error)
                    ^
/home/wo/Desktop/install/wxMathPlot/wxMathPlot-0.1.2/mathplot.cpp:2610:11: note: in expansion of macro 'wxLogError'
         ::wxLogError(wxT("[mpMovableObject::ShapeUpdated] Error, m_shape_xs and m_shape_ys have different lengths!"));
           ^
/usr/include/wx-3.0/wx/log.h:1367:58: error: 'wxlogcheck2610' was not declared in this scope
     wxDO_LOG_IF_ENABLED_HELPER(level, wxMAKE_UNIQUE_NAME(wxlogcheck))
(..., lots of consecutive errors to follow)

from wx/log.h (the error related code starts after the #else)

#ifdef __VISUALC6__
#define wxDO_LOG_IF_ENABLED(level)                                            \
    if ( !wxLog::IsLevelEnabled(wxLOG_##level, wxLOG_COMPONENT) )             \
    {}                                                                        \
    else                                                                      \
        wxDO_LOG(level)
#else
#define wxDO_LOG_IF_ENABLED_HELPER(level, loopvar)                            \
    for ( bool loopvar = false;                                               \
          !loopvar && wxLog::IsLevelEnabled(wxLOG_##level, wxLOG_COMPONENT);  \
          loopvar = true )                                                    \
        wxDO_LOG(level)

#define wxDO_LOG_IF_ENABLED(level)                                            \
    wxDO_LOG_IF_ENABLED_HELPER(level, wxMAKE_UNIQUE_NAME(wxlogcheck))
#endif

Seems it affects all calls to ::wxLogError...
When commenting them out, the code compiles.

I'm using the CodeLite IDE 9.1.0 and g++5 on Xubuntu 15.10. I created a project containing mathplot.h, mathplot.cpp and any one of the 3 examples (./samples/mp{1,2,3}.cpp).

Any suggestions for a real fix?

Thanks for advice!

[Alex Hirzel]

In mathplot.cpp, change all references from "::wxLogError" to "wxLogError". This is because wxLogError is a macro rather than a function.