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mpv/osdep/compiler.h
James Ross-Gowan 40b626fd9b build: fix compilation with mingw-w64/Clang
This fixes the build in mingw-w64/Clang on MSYS2. It also disables the
use of gnu_printf in Clang, which was what was causing most of the
warnings. The Clang-compiled mpv binary appears to work, but there are
no guarantees yet, since until now mpv has only been tested with
mingw-w64/GCC on Windows.

Fixes #3800
2016-11-17 23:34:20 +11:00

28 lines
821 B
C

#ifndef MPV_COMPILER_H
#define MPV_COMPILER_H
#define MP_EXPAND_ARGS(...) __VA_ARGS__
#ifdef __GNUC__
#define MP_NORETURN __attribute__((noreturn))
/** Use gcc attribute to check printf fns. a1 is the 1-based index of
* the parameter containing the format, and a2 the index of the first
* argument. **/
#if defined(__MINGW32__) && !defined(__clang__)
// MinGW maps "printf" to the non-standard MSVCRT functions, even if
// __USE_MINGW_ANSI_STDIO is defined and set to 1. We need to use "gnu_printf",
// which isn't necessarily available on other GCC compatible compilers.
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (gnu_printf, a1, a2)))
#else
#define PRINTF_ATTRIBUTE(a1, a2) __attribute__ ((format (printf, a1, a2)))
#endif
#else
#define PRINTF_ATTRIBUTE(a1, a2)
#define MP_NORETURN
#endif
#endif