pkgs/development/tools/simavr/setup-hook-darwin.sh

   1
   2 fixupCFlagsForDarwin() {
   3     # Because it’s getting called from a Darwin stdenv, avr-gcc will pick up on
   4     # Darwin-specific flags, and it will barf and die on -iframework in
   5     # particular. Strip them out, so simavr can compile its test firmware.
   6     cflagsFilter='s|-F[^ ]*||g;s|-iframework [^ ]*||g;s|-isystem [^ ]*||g;s|  *| |g'
   7
   8     # The `CoreFoundation` reference is added by `linkSystemCoreFoundationFramework` in the
   9     # Apple SDK’s setup hook. Remove that because avr-gcc will fail due to file not found.
  10     ldFlagsFilter='s|/nix/store/[^-]*-apple-framework-CoreFoundation[^ ]*||g'
  11
  12     # `cc-wrapper.sh`` supports getting flags from a system-specific salt. While it is currently a
  13     # tuple, that’s not considered a stable interface, so the derivation will provide them.
  14     export NIX_CFLAGS_COMPILE_@darwinSuffixSalt@=${NIX_CFLAGS_COMPILE-}
  15     export NIX_LDFLAGS_@darwinSuffixSalt@=${NIX_LDFLAGS-}
  16
  17     echo removing @darwinSuffixSalt@-specific flags from NIX_CFLAGS_COMPILE for @avrSuffixSalt@
  18     export NIX_CFLAGS_COMPILE_@avrSuffixSalt@+="$(sed "$cflagsFilter" <<< "$NIX_CFLAGS_COMPILE")"
  19     echo removing @darwinSuffixSalt@-specific flags from NIX_LDFLAGS for @avrSuffixSalt@
  20     export NIX_LDFLAGS_@avrSuffixSalt@+="$(sed "$ldFlagsFilter;$cflagsFilter" <<< "$NIX_LDFLAGS")"
  21
  22     # Make sure the global flags aren’t accidentally influencing the platform-specific flags.
  23     export NIX_CFLAGS_COMPILE=""
  24     export NIX_LDFLAGS=""
  25 }
  26
  27 # This is pretty hacky, but this hook _must_ run after `linkSystemCoreFoundationFramework`.
  28 function runFixupCFlagsForDarwinLast() {
  29     preConfigureHooks+=(fixupCFlagsForDarwin)
  30 }
  31
  32 if [ -z "${dontFixupCFlagsForDarwin-}" ]; then
  33     postUnpackHooks+=(runFixupCFlagsForDarwinLast)
  34 fi