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Compiler.h: add macro CLANG_OR_GCC_VERSION()

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This commit is contained in:
Max Kellermann
2014-11-28 19:09:21 +01:00
parent 25429af122
commit d93172bee8
10 changed files with 23 additions and 16 deletions
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15
src/Compiler.h
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@@ -31,6 +31,13 @@
#define GCC_CHECK_VERSION(major, minor) \
(defined(__GNUC__) && GCC_VERSION >= GCC_MAKE_VERSION(major, minor, 0))
/**
* Are we building with clang (any version) or at least the specified
* gcc version?
*/
#define CLANG_OR_GCC_VERSION(major, minor) \
(defined(__clang__) || GCC_CHECK_VERSION(major, minor))
/**
* Are we building with gcc (not clang or any other compiler) and a
* version older than the specified one?
@@ -52,7 +59,7 @@
# warning Untested compiler. Use at your own risk!
#endif
#if GCC_CHECK_VERSION(4,0)
#if CLANG_OR_GCC_VERSION(4,0)
/* GCC 4.x */
@@ -112,7 +119,7 @@
#endif
#if GCC_CHECK_VERSION(4,3)
#if CLANG_OR_GCC_VERSION(4,3)
#define gcc_hot __attribute__((hot))
#define gcc_cold __attribute__((cold))
@@ -133,7 +140,7 @@
#ifndef __cplusplus
/* plain C99 has "restrict" */
#define gcc_restrict restrict
#elif GCC_CHECK_VERSION(4,0)
#elif CLANG_OR_GCC_VERSION(4,0)
/* "__restrict__" is a GCC extension for C++ */
#define gcc_restrict __restrict__
#else
@@ -151,7 +158,7 @@
#define final
#endif
#if defined(__clang__) || GCC_CHECK_VERSION(4,8)
#if CLANG_OR_GCC_VERSION(4,8)
#define gcc_alignas(T, fallback) alignas(T)
#else
#define gcc_alignas(T, fallback) gcc_aligned(fallback)