[llvm-bugs] [Bug 40201] New: regression: can't build from source: The dependency target "cxx" of target "check-all" does not exist

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=40201

            Bug ID: 40201
           Summary: regression: can't build from source: The dependency
                    target "cxx" of target "check-all" does not exist
           Product: lldb
           Version: unspecified
          Hardware: Macintosh
                OS: MacOS X
            Status: NEW
          Severity: release blocker
          Priority: P
         Component: All Bugs
          Assignee: lldb-dev at lists.llvm.org
          Reporter: thelastmammoth at gmail.com
                CC: llvm-bugs at lists.llvm.org

instructions from https://lldb.llvm.org/build.html used to work, but is
currently broken:

```
git clone https://git.llvm.org/git/llvm.git/
cd llvm/tools
git clone https://git.llvm.org/git/clang.git/
git clone https://git.llvm.org/git/lldb.git/
cd ../..
mkdir build
cd build
cmake .. -G Ninja
```

```
...
-- Performing Test HAVE_STEADY_CLOCK
-- Performing Test HAVE_STEADY_CLOCK
-- Performing Test HAVE_STEADY_CLOCK -- success
-- Configuring done
CMake Error at cmake/modules/AddLLVM.cmake:1362 (add_dependencies):
  The dependency target "cxx" of target "check-all" does not exist.
Call Stack (most recent call first):
  CMakeLists.txt:928 (add_lit_target)


CMake Error at cmake/modules/AddLLVM.cmake:1362 (add_dependencies):
  The dependency target "cxx" of target
  "check-lldb-tools-lldb-mi-target-inputs" does not exist.
Call Stack (most recent call first):
  cmake/modules/AddLLVM.cmake:1414 (add_lit_target)
  tools/lldb/lit/CMakeLists.txt:93 (add_lit_testsuites)


CMake Error at cmake/modules/AddLLVM.cmake:1362 (add_dependencies):
  The dependency target "cxx" of target "check-lldb-tools-lldb-mi-target"
  does not exist.
Call Stack (most recent call first):
  cmake/modules/AddLLVM.cmake:1414 (add_lit_target)
  tools/lldb/lit/CMakeLists.txt:93 (add_lit_testsuites)


CMake Error at cmake/modules/AddLLVM.cmake:1362 (add_dependencies):
  The dependency target "cxx" of target
...
```


not sure whether https://bugs.llvm.org/show_bug.cgi?id=39910 is related

I'm on OSX mojave 10.14.1

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