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Suppress -Wundef warnings on arm64 macOS and Windows #134

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Merged
kou merged 1 commit into from
Sep 11, 2023
Merged

Suppress -Wundef warnings on arm64 macOS and Windows #134

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5 changes: 5 additions & 0 deletions ext/fiddle/extconf.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -63,6 +63,11 @@ def enable_debug_build_flag(flags)
end
if have_ffi_header && (have_library('ffi') || have_library('libffi'))
have_libffi = true
checking_for("undefined FFI_GO_CLOSURES is used") do
if egrep_cpp(/warning: 'FFI_GO_CLOSURES' is not defined/, cpp_include(ffi_header), "2>&1")
$defs.push('-DFFI_GO_CLOSURES=0')
end
end
end
end

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