mirror of
https://github.com/SebastianWendel/nixpkgs.git
synced 2024-09-23 05:35:50 +02:00
38 lines
2.2 KiB
Bash
38 lines
2.2 KiB
Bash
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fixupCFlagsForDarwin() {
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# Because it’s getting called from a Darwin stdenv, MinGW will pick up on Darwin-specific
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# flags, and the ./configure tests will fail to consider it a working cross-compiler.
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# Strip them out, so Wine can use MinGW to build its DLLs instead of trying to use Clang.
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# Ideally, it would be possible to build the DLLs on Windows (i.e., as part of `pkgsCross``),
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# but that is not the case currently with Wine’s build system.
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cflagsFilter='s|-F[^ ]*||g;s|-iframework [^ ]*||g;s|-isystem [^ ]*||g;s| *| |g'
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# libiconv and libintl aren’t needed by Wine, and having them causes linking to fail.
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# The `CoreFoundation` reference is added by `linkSystemCoreFoundationFramework` in the
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# Apple SDK’s setup hook. Remove that because MingW will fail due to file not found.
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ldFlagsFilter='s|-lintl||g;s|-liconv||g;s|/nix/store/[^-]*-apple-framework-CoreFoundation[^ ]*||g'
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# `cc-wrapper.sh`` supports getting flags from a system-specific salt. While it is currently a
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# tuple, that’s not considered a stable interface, so the Wine derivation will provide them:
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# - for Darwin: The source is `stdenv.cc.suffixSalt`; and
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# - for MinGW: The source is the `suffixSalt`` attribute of each of the `mingwGccs`.
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export NIX_CFLAGS_COMPILE_@darwinSuffixSalt@=${NIX_CFLAGS_COMPILE-}
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export NIX_LDFLAGS_@darwinSuffixSalt@=${NIX_LDFLAGS-}
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for mingwSalt in @mingwGccsSuffixSalts@; do
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echo removing @darwinSuffixSalt@-specific flags from NIX_CFLAGS_COMPILE for $mingwSalt
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export NIX_CFLAGS_COMPILE_$mingwSalt+="$(sed "$cflagsFilter" <<< "$NIX_CFLAGS_COMPILE")"
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echo removing @darwinSuffixSalt@-specific flags from NIX_LDFLAGS for $mingwSalt
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export NIX_LDFLAGS_$mingwSalt+="$(sed "$ldFlagsFilter;$cflagsFilter" <<< "$NIX_LDFLAGS")"
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done
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# Make sure the global flags aren’t accidentally influencing the platform-specific flags.
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export NIX_CFLAGS_COMPILE=""
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export NIX_LDFLAGS=""
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}
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# This is pretty hacky, but this hook _must_ run after `linkSystemCoreFoundationFramework`.
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function runFixupCFlagsForDarwinLast() {
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preConfigureHooks+=(fixupCFlagsForDarwin)
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}
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postUnpackHooks+=(runFixupCFlagsForDarwinLast)
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