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wrapCC: check darwin-ness for -mcpu/-march based on targetPlatform

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`stdenv.is*` defaults to `hostPlatform` which is technically incorrect
here, since what we are gating concerns the target platform only.

This would be a problem in practice if cross compiling from
x86_64-darwin to aarch64-darwin whilst using gcc which is probably
rare enough.
This commit is contained in:
sternenseemann 2024-04-14 15:51:18 +02:00
parent 20a3a21814
commit fde3861f21
1 changed files with 2 additions and 2 deletions
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4
pkgs/build-support/cc-wrapper/default.nix
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@ -623,7 +623,7 @@ stdenv.mkDerivation {
# For clang, this is handled in add-clang-cc-cflags-before.sh
# TODO: aarch64-darwin has mcpu incompatible with gcc
+ optionalString ((targetPlatform ? gcc.arch) && !isClang && !(stdenv.isDarwin && stdenv.isAarch64) &&
+ optionalString ((targetPlatform ? gcc.arch) && !isClang && !(targetPlatform.isDarwin && targetPlatform.isAarch64) &&
isGccArchSupported targetPlatform.gcc.arch) ''
echo "-march=${targetPlatform.gcc.arch}" >> $out/nix-support/cc-cflags-before
''
@ -632,7 +632,7 @@ stdenv.mkDerivation {
# instead of march. On all other platforms you should use mtune
# and march instead.
# TODO: aarch64-darwin has mcpu incompatible with gcc
+ optionalString ((targetPlatform ? gcc.cpu) && (isClang || !(stdenv.isDarwin && stdenv.isAarch64))) ''
+ optionalString ((targetPlatform ? gcc.cpu) && (isClang || !(targetPlatform.isDarwin && targetPlatform.isAarch64))) ''
echo "-mcpu=${targetPlatform.gcc.cpu}" >> $out/nix-support/cc-cflags-before
''