isle-portable/LEGO1/compat.h

#ifndef ISLECOMPAT_H
#define ISLECOMPAT_H

// Various macros to enable compiling with other/newer compilers.

// Use `COMPAT_CONST` where something ought to be 'const', and a newer compiler would complain if it
// wasn't, but we know it isn't 'const' in the original code.
#ifdef __MINGW32__
#define COMPAT_CONST const
#else
#define COMPAT_CONST
#endif

// DIsable "nonstandard extension used : 'bool'" warning spam
#pragma warning(disable : 4237)

// Disable "identifier was truncated to '255' characters" warning.
// Impossible to avoid this if using STL map or set.
// This removes most (but not all) occurrences of the warning.
#pragma warning(disable : 4786)
// To really remove *all* of the warnings, we have to employ the following,
// obscure workaround from https://www.earthli.com/news/view_article.php?id=376
static class msVC6_4786WorkAround {
public:
	msVC6_4786WorkAround() {}
} msVC6_4786WorkAround;

#define MSVC420_VERSION 1020

// STL compatibility.
#if defined(_MSC_VER) && _MSC_VER <= MSVC420_VERSION
#include "mxstl.h"
#else
#include <algorithm>
#include <list>
#include <set>
using std::list;
using std::set;
#endif

// We use `override` so newer compilers can tell us our vtables are valid,
// however this keyword was added in C++11, so we define it as empty for
// compatibility with older compilers.
#if defined(_MSC_VER) && _MSC_VER <= 1200 // 1200 corresponds to VC6.0 but "override" was probably added even later
#define override
#endif

#endif // ISLECOMPAT_H