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qemu/compiler: Add fallback macro for __has_builtin

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Prevents compilation errors on non-clang compilers.
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Lioncash 2019-01-22 19:02:46 -05:00
parent cfd84d84f6
commit b17d2d4059
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4
qemu/include/qemu/compiler.h
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@ -14,6 +14,10 @@
#define __has_attribute(x) 0 /* compatibility with older GCC */
#endif
#ifndef __has_builtin // Optional of course.
#define __has_builtin(x) 0 // Compatibility with non-clang compilers.
#endif
/*
* If __attribute__((error)) is present, use it to produce an error at
* compile time. Otherwise, one must wait for the linker to diagnose