33 lines
1.5 KiB
Nix
33 lines
1.5 KiB
Nix
{ lib, targetPlatform }:
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let
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isAarch64Darwin = targetPlatform.isDarwin && targetPlatform.isAarch64;
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gcc = targetPlatform.gcc or {};
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p = gcc
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// targetPlatform.parsed.abi;
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in lib.concatLists [
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# --with-arch= is unknown flag on x86_64 and aarch64-darwin.
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(lib.optional (!targetPlatform.isx86_64 && !isAarch64Darwin && p ? arch) "--with-arch=${p.arch}")
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# --with-cpu on aarch64-darwin fails with "Unknown cpu used in --with-cpu=apple-a13".
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(lib.optional (!isAarch64Darwin && p ? cpu) "--with-cpu=${p.cpu}")
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(lib.optional (p ? abi) "--with-abi=${p.abi}")
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(lib.optional (p ? fpu) "--with-fpu=${p.fpu}")
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(lib.optional (p ? float) "--with-float=${p.float}")
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(lib.optional (p ? mode) "--with-mode=${p.mode}")
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(lib.optionals targetPlatform.isPower64
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# musl explicitly rejects 128-bit long double on
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# powerpc64; see musl/arch/powerpc64/bits/float.h
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(lib.optionals
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(!targetPlatform.isMusl
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&& (targetPlatform.isLittleEndian ||
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# "... --with-long-double-format is only supported if the default cpu is power7 or newer"
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# https://github.com/NixOS/nixpkgs/pull/170215#issuecomment-1202164709
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(lib.lists.elem
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(lib.strings.substring 0 6 (p.cpu or ""))
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[ "power7" "power8" "power9" "power1"/*0, 11, etc*/ ]))) [
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"--with-long-double-128"
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"--with-long-double-format=${gcc.long-double-format or "ieee"}"
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]))
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(lib.optional targetPlatform.isMips64n32 "--disable-libsanitizer") # libsanitizer does not compile on mips64n32
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]
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