6e13168f47
Remove unnecessary compiler flag not recognized by Clang. Borrow setup hook from Wine which filters out Darwin-specific flags not recognized by avr-gcc, which is used to build the test firmware.
35 lines
1.7 KiB
Bash
35 lines
1.7 KiB
Bash
|
||
fixupCFlagsForDarwin() {
|
||
# Because it’s getting called from a Darwin stdenv, avr-gcc will pick up on
|
||
# Darwin-specific flags, and it will barf and die on -iframework in
|
||
# particular. Strip them out, so simavr can compile its test firmware.
|
||
cflagsFilter='s|-F[^ ]*||g;s|-iframework [^ ]*||g;s|-isystem [^ ]*||g;s| *| |g'
|
||
|
||
# The `CoreFoundation` reference is added by `linkSystemCoreFoundationFramework` in the
|
||
# Apple SDK’s setup hook. Remove that because avr-gcc will fail due to file not found.
|
||
ldFlagsFilter='s|/nix/store/[^-]*-apple-framework-CoreFoundation[^ ]*||g'
|
||
|
||
# `cc-wrapper.sh`` supports getting flags from a system-specific salt. While it is currently a
|
||
# tuple, that’s not considered a stable interface, so the derivation will provide them.
|
||
export NIX_CFLAGS_COMPILE_@darwinSuffixSalt@=${NIX_CFLAGS_COMPILE-}
|
||
export NIX_LDFLAGS_@darwinSuffixSalt@=${NIX_LDFLAGS-}
|
||
|
||
echo removing @darwinSuffixSalt@-specific flags from NIX_CFLAGS_COMPILE for @avrSuffixSalt@
|
||
export NIX_CFLAGS_COMPILE_@avrSuffixSalt@+="$(sed "$cflagsFilter" <<< "$NIX_CFLAGS_COMPILE")"
|
||
echo removing @darwinSuffixSalt@-specific flags from NIX_LDFLAGS for @avrSuffixSalt@
|
||
export NIX_LDFLAGS_@avrSuffixSalt@+="$(sed "$ldFlagsFilter;$cflagsFilter" <<< "$NIX_LDFLAGS")"
|
||
|
||
# Make sure the global flags aren’t accidentally influencing the platform-specific flags.
|
||
export NIX_CFLAGS_COMPILE=""
|
||
export NIX_LDFLAGS=""
|
||
}
|
||
|
||
# This is pretty hacky, but this hook _must_ run after `linkSystemCoreFoundationFramework`.
|
||
function runFixupCFlagsForDarwinLast() {
|
||
preConfigureHooks+=(fixupCFlagsForDarwin)
|
||
}
|
||
|
||
if [ -z "${dontFixupCFlagsForDarwin-}" ]; then
|
||
postUnpackHooks+=(runFixupCFlagsForDarwinLast)
|
||
fi
|