ceff23c6e39118fbbfb053e70d786fad40987c5b breaks LLD tests on builders containing "dylib" in their name

[tbaederr]

For example:

command line:1:22: error: RESPONSE-NOT: excluded string found in input
-implicit-check-not='dylib'
                     ^
<stdin>:3:36: note: found here
-syslibroot b/1/llvm-x86_64-debian-dylib/llvm-project/lld/test/MachO/Inputs/MacOSX.sdk
                                   ^~~~~
Input file: <stdin>
Check file: /b/1/llvm-x86_64-debian-dylib/llvm-project/lld/test/MachO/flat-namespace-dysyms.s
-dump-input=help explains the following input dump.
Input was:
<<<<<<
          1: -arch x86_64 
          2: -platform_version macos 11.0 11.0 
          3: -syslibroot b/1/llvm-x86_64-debian-dylib/llvm-project/lld/test/MachO/Inputs/MacOSX.sdk 
not:imp1                                        !~~~~                                                error: no match expected
          4: -lSystem 
          5: -fatal_warnings 
          6: -flat_namespace 
          7: -lSystem 
          8: b/1/llvm-x86_64-debian-dylib/build/tools/lld/test/MachO/Output/flat-namespace-dysyms.s.tmp/main.o 
          9: b/1/llvm-x86_64-debian-dylib/build/tools/lld/test/MachO/Output/flat-namespace-dysyms.s.tmp/baz.dylib 
         10: -o out 
         11: -t 
>>>>>>

I see that ceff23c is actually quite old, so something else must've changed, I guess?

[llvmbot]

@llvm/issue-subscribers-lld-macho

Author: Timm Baeder (tbaederr)

For example:

command line:1:22: error: RESPONSE-NOT: excluded string found in input
-implicit-check-not='dylib'
                     ^
<stdin>:3:36: note: found here
-syslibroot b/1/llvm-x86_64-debian-dylib/llvm-project/lld/test/MachO/Inputs/MacOSX.sdk
                                   ^~~~~
Input file: <stdin>
Check file: /b/1/llvm-x86_64-debian-dylib/llvm-project/lld/test/MachO/flat-namespace-dysyms.s
-dump-input=help explains the following input dump.
Input was:
<<<<<<
          1: -arch x86_64 
          2: -platform_version macos 11.0 11.0 
          3: -syslibroot b/1/llvm-x86_64-debian-dylib/llvm-project/lld/test/MachO/Inputs/MacOSX.sdk 
not:imp1                                        !~~~~                                                error: no match expected
          4: -lSystem 
          5: -fatal_warnings 
          6: -flat_namespace 
          7: -lSystem 
          8: b/1/llvm-x86_64-debian-dylib/build/tools/lld/test/MachO/Output/flat-namespace-dysyms.s.tmp/main.o 
          9: b/1/llvm-x86_64-debian-dylib/build/tools/lld/test/MachO/Output/flat-namespace-dysyms.s.tmp/baz.dylib 
         10: -o out 
         11: -t 
>>>>>>

I see that ceff23c is actually quite old, so something else must've changed, I guess?

[firewave]

Looks like a duplicate of #75850.

[smeenai]

I pushed c77c366 as a short-term fix.