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Check if x86intrin.h is available not only existing

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Nobuyoshi Nakada 2021-01-02 09:48:42 +09:00
parent 830afd94fe
commit 5aa28d9d6d
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GPG Key ID: 7CD2805BFA3770C6
1 changed files with 3 additions and 1 deletions
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4
ext/bigdecimal/extconf.rb
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@ -46,7 +46,9 @@ have_builtin_func("__builtin_clz", "__builtin_clz(0)")
have_builtin_func("__builtin_clzl", "__builtin_clzl(0)")
have_header("stdbool.h")
have_header("x86intrin.h")
if have_func("_lzcnt_u64", "x86intrin.h") # check availability
$defs << "-DHAVE_X86INTRIN_H"
end
have_func("labs", "stdlib.h")
have_func("llabs", "stdlib.h")