134 lines
4.0 KiB
C
134 lines
4.0 KiB
C
/* Copyright (c) 2010 Wildfire Games
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included
|
|
* in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
|
|
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
|
|
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
|
|
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
/*
|
|
* compiler-specific macros and fixes
|
|
*/
|
|
|
|
#ifndef INCLUDED_COMPILER
|
|
#define INCLUDED_COMPILER
|
|
|
|
// detect compiler and its version (0 if not present, otherwise
|
|
// major*100 + minor). note that more than one *_VERSION may be
|
|
// non-zero due to interoperability (e.g. ICC with MSC).
|
|
// .. VC
|
|
#ifdef _MSC_VER
|
|
# define MSC_VERSION _MSC_VER
|
|
#else
|
|
# define MSC_VERSION 0
|
|
#endif
|
|
// .. ICC (VC-compatible, GCC-compatible)
|
|
#if defined(__INTEL_COMPILER)
|
|
# define ICC_VERSION __INTEL_COMPILER
|
|
#else
|
|
# define ICC_VERSION 0
|
|
#endif
|
|
// .. LCC (VC-compatible)
|
|
#if defined(__LCC__)
|
|
# define LCC_VERSION __LCC__
|
|
#else
|
|
# define LCC_VERSION 0
|
|
#endif
|
|
// .. GCC
|
|
#ifdef __GNUC__
|
|
# define GCC_VERSION (__GNUC__*100 + __GNUC_MINOR__)
|
|
#else
|
|
# define GCC_VERSION 0
|
|
#endif
|
|
// .. Clang/LLVM (GCC-compatible)
|
|
// use Clang's feature checking macros to check for availability of features
|
|
// http://clang.llvm.org/docs/LanguageExtensions.html#feature-checking-macros
|
|
#ifdef __clang__
|
|
# define CLANG_VERSION (__clang_major__*100 + __clang_minor__)
|
|
#else
|
|
# define CLANG_VERSION 0
|
|
#endif
|
|
|
|
|
|
// are PreCompiled Headers supported?
|
|
#if MSC_VERSION
|
|
# define HAVE_PCH 1
|
|
#elif defined(USING_PCH)
|
|
# define HAVE_PCH 1
|
|
#else
|
|
# define HAVE_PCH 0
|
|
#endif
|
|
|
|
|
|
// check if compiling in pure C mode (not C++) with support for C99.
|
|
// (this is more convenient than testing __STDC_VERSION__ directly)
|
|
//
|
|
// note: C99 provides several useful but disjunct bits of functionality.
|
|
// unfortunately, most C++ compilers do not offer a complete implementation.
|
|
// however, many of these features are likely to be added to C++, and/or are
|
|
// already available as extensions. what we'll do is add a HAVE_ macro for
|
|
// each feature and test those instead. they are set if HAVE_C99, or also if
|
|
// the compiler happens to support something compatible.
|
|
//
|
|
// rationale: lying about __STDC_VERSION__ via Premake so as to enable support
|
|
// for some C99 functions doesn't work. Mac OS X headers would then use the
|
|
// restrict keyword, which is never supported by g++ (because that might
|
|
// end up breaking valid C++98 programs).
|
|
#define HAVE_C99 0
|
|
#ifdef __STDC_VERSION__
|
|
# if __STDC_VERSION__ >= 199901L
|
|
# undef HAVE_C99
|
|
# define HAVE_C99 1
|
|
# endif
|
|
#endif
|
|
|
|
|
|
// do we have (at least rudimentary) support for C++0x?
|
|
#ifndef HAVE_CPP0X
|
|
# if defined(__GXX_EXPERIMENTAL_CPP0X__) || MSC_VERSION >= 1600 || ICC_VERSION >= 1200
|
|
# define HAVE_CPP0X 1
|
|
# else
|
|
# define HAVE_CPP0X 0
|
|
# endif
|
|
#endif
|
|
|
|
|
|
// Streaming SIMD Extensions (not supported by all GCC)
|
|
// this only ascertains compiler support; use x86_x64::Cap to
|
|
// check whether the instructions are supported by the CPU.
|
|
#ifndef HAVE_SSE
|
|
# if GCC_VERSION && defined(__SSE__)
|
|
# define HAVE_SSE 1
|
|
# elif MSC_VERSION // also includes ICC
|
|
# define HAVE_SSE 1
|
|
# else
|
|
# define HAVE_SSE 0
|
|
# endif
|
|
#endif
|
|
|
|
#ifndef HAVE_SSE2
|
|
# if GCC_VERSION && defined(__SSE2__)
|
|
# define HAVE_SSE2 1
|
|
# elif MSC_VERSION // also includes ICC
|
|
# define HAVE_SSE2 1
|
|
# else
|
|
# define HAVE_SSE2 0
|
|
# endif
|
|
#endif
|
|
|
|
#endif // #ifndef INCLUDED_COMPILER
|