pkgs/applications/emulators/wine/setup-hook-darwin.sh

   1
   2 fixupCFlagsForDarwin() {
   3     # Because it’s getting called from a Darwin stdenv, MinGW will pick up on Darwin-specific
   4     # flags, and the ./configure tests will fail to consider it a working cross-compiler.
   5     # Strip them out, so Wine can use MinGW to build its DLLs instead of trying to use Clang.
   6     # Ideally, it would be possible to build the DLLs on Windows (i.e., as part of `pkgsCross``),
   7     # but that is not the case currently with Wine’s build system.
   8     cflagsFilter='s|-F[^ ]*||g;s|-iframework [^ ]*||g;s|-isystem [^ ]*||g;s|  *| |g'
   9
  10     # libiconv and libintl aren’t needed by Wine, and having them causes linking to fail.
  11     # The `CoreFoundation` reference is added by `linkSystemCoreFoundationFramework` in the
  12     # Apple SDK’s setup hook. Remove that because MingW will fail due to file not found.
  13     ldFlagsFilter='s|-lintl||g;s|-liconv||g;s|/nix/store/[^-]*-apple-framework-CoreFoundation[^ ]*||g'
  14
  15     # `cc-wrapper.sh`` supports getting flags from a system-specific salt. While it is currently a
  16     # tuple, that’s not considered a stable interface, so the Wine derivation will provide them:
  17     # - for Darwin: The source is `stdenv.cc.suffixSalt`; and
  18     # - for MinGW: The source is the `suffixSalt`` attribute of each of the `mingwGccs`.
  19     export NIX_CFLAGS_COMPILE_@darwinSuffixSalt@=${NIX_CFLAGS_COMPILE-}
  20     export NIX_LDFLAGS_@darwinSuffixSalt@=${NIX_LDFLAGS-}
  21     for mingwSalt in @mingwGccsSuffixSalts@; do
  22         echo removing @darwinSuffixSalt@-specific flags from NIX_CFLAGS_COMPILE for $mingwSalt
  23         export NIX_CFLAGS_COMPILE_$mingwSalt+="$(sed "$cflagsFilter" <<< "$NIX_CFLAGS_COMPILE")"
  24         echo removing @darwinSuffixSalt@-specific flags from NIX_LDFLAGS for $mingwSalt
  25         export NIX_LDFLAGS_$mingwSalt+="$(sed "$ldFlagsFilter;$cflagsFilter" <<< "$NIX_LDFLAGS")"
  26     done
  27
  28     # Make sure the global flags aren’t accidentally influencing the platform-specific flags.
  29     export NIX_CFLAGS_COMPILE=""
  30     export NIX_LDFLAGS=""
  31 }
  32
  33 # This is pretty hacky, but this hook _must_ run after `linkSystemCoreFoundationFramework`.
  34 function runFixupCFlagsForDarwinLast() {
  35     preConfigureHooks+=(fixupCFlagsForDarwin)
  36 }
  37 postUnpackHooks+=(runFixupCFlagsForDarwinLast)