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Setup: pass include paths and CUDA macros to c2hs #87

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Setup: pass include paths and CUDA macros to c2hs #87

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12 changes: 12 additions & 0 deletions cuda/Setup.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -210,7 +210,19 @@ libraryBuildInfo cwd verbosity profile installPath platform@(Platform arch os) g
_ -> ""
emptyCase = ["-DUSE_EMPTY_CASE" | versionBranch ghcVersion >= [7,8]]
blocksExtension = [ "-U__BLOCKS__" | os == OSX ]
-- Pass include dirs, CUDA path macros, and cbits/ to c2hs so that:
-- * stubs.h resolves (needs cbits/ and package root in -I)
-- * Path.chs resolves CUDA_INSTALL_PATH / CUDA_LIBRARY_PATH string consts
-- * CUDA system headers are found without relying on c2hs default search
c2hsIncludePaths = map (("--cppopts=-I" ++) . interpretSymbolicPath cwd) includePaths
++ [ "--cppopts=-I." -- package root for cbits/stubs.h
, "--cppopts=-Icbits" -- cbits/ for compat headers
]
cudaInstallMacro = "--cppopts=-DCUDA_INSTALL_PATH=\"" ++ escDefPath installPath ++ "\""
cudaLibraryMacro = "--cppopts=-DCUDA_LIBRARY_PATH=\"" ++ escDefPath canonicalLibraryPath ++ "\""
c2hsOptions = unwords $ map ("--cppopts="++) ("-E" : archFlag : emptyCase ++ blocksExtension)
++ c2hsIncludePaths
++ [cudaInstallMacro, cudaLibraryMacro]
c2hsExtraOptions = ("x-extra-c2hs-options", c2hsOptions)

addSystemSpecificOptions :: BuildInfo -> IO BuildInfo
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