PackageTests/Regression/T4025/setup.test.hs fails on MacOS on some GHC versions

[andreabedini]

The test PackageTests/Regression/T4025/setup.test.hs fails on MacOS with some GHC versions.

GHC versions known to fail

• 8.10.7

GHC versions known to pass

• 8.8.4

The test cases checks makes sure we do not set the RPATH accidentally. Therefore the test crafts an executable and expects it to fail to run.

cabal/cabal-testsuite/PackageTests/Regression/T4025/setup.test.hs

Lines 9 to 13 in dd7a18d

	-- This should fail as it we should NOT be able to find the
	-- dynamic library for the internal library (since we didn't
	-- install it). If we incorrectly encoded our local dist
	-- dir in the RPATH, this will succeed.
	recordMode DoNotRecord . fails $ runExe "exe" []

Comparing these two locally, the RPATH is not set with GHC 8.8.4 but it is set with GHC 8.10.7

With GHC 8.10.7

The test fails and the RPATH is set

$ otool -l /Users/andrea/code/cabal/cabal-testsuite/PackageTests/Regression/T4025/setup.dist/work/./dist/build/exe/exe
/Users/andrea/code/cabal/cabal-testsuite/PackageTests/Regression/T4025/setup.dist/work/./dist/build/exe/exe:
...
Load command 25
          cmd LC_RPATH
      cmdsize 112
         path /Users/andrea/code/cabal/cabal-testsuite/PackageTests/Regression/T4025/setup.dist/work/dist/build (offset 12)

With GHC 8.8.4

The test passes and you can see the linker complaining.

Linking setup.dist/work/dist/build/exe/exe ...
+ /Users/andrea/code/cabal/cabal-testsuite/PackageTests/Regression/T4025/setup.dist/work/./dist/build/exe/exe
dyld[39050]: Library not loaded: @rpath/libHST4025-1.0-ghc8.8.4.dylib
  Referenced from: /Users/andrea/code/cabal/cabal-testsuite/PackageTests/Regression/T4025/setup.dist/work/dist/build/exe/exe
  Reason: tried: '/Users/andrea/code/cabal/cabal-testsuite/PackageTests/Regression/T4025/setup.dist/usr/lib/x86_64-osx-ghc-8.8.4/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/base-4.13.0.0/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/ghc-prim-0.5.3/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/integer-gmp-1.0.2.0/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/rts/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/code/cabal/cabal-testsuite/PackageTests/Regression/T4025/setup.dist/usr/lib/x86_64-osx-ghc-8.8.4/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/base-4.13.0.0/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/ghc-prim-0.5.3/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/integer-gmp-1.0.2.0/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/Users/andrea/.ghcup/ghc/8.8.4/lib/ghc-8.8.4/rts/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/usr/local/lib/libHST4025-1.0-ghc8.8.4.dylib' (no such file), '/usr/lib/libHST4025-1.0-ghc8.8.4.dylib' (no such file)

[andreasabel]

This bug has been reported as:

• Regression test T4025 fails (macOS) #7610

[Mikolaj]

Duplicate of #7610

[Mikolaj]

@andreabedini: if you agree, feel free to close.

[andreabedini]

Yes, it looks like the same bug.