[llvm-bugs] [Bug 45870] New: compile-rt enabled runtime causes 'Target "llvm-ranlib" is not an executable or library'

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=45870

            Bug ID: 45870
           Summary: compile-rt enabled runtime causes 'Target
                    "llvm-ranlib" is not an executable or library'
           Product: new-bugs
           Version: 10.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: new bugs
          Assignee: unassignedbugs at nondot.org
          Reporter: arcadiy at ivanov.biz
                CC: htmldeveloper at gmail.com, llvm-bugs at lists.llvm.org

This reproduces **ALL** the time.

Fedora 31 x86_64

```
$ cmake --version
cmake version 3.17.2

CMake suite maintained and supported by Kitware (kitware.com/cmake).
```
1. `git clone https://github.com/llvm/llvm-project/`
2. `git checkout llvmorg-10.0.0` or `git checkout release/10.x`.
3. Use the following build file:

```
#/bin/bash -eEu

LLVM_SRC="$(readlink -nf llvm-project/llvm)"
LLVM_BIN="$(readlink -nf llvm.bin.scratch)"
LLVM_BUILD="$(readlink -nf llvm-project/build)"

rm -rf "$LLVM_BUILD" || true
rm -rf "$LLVM_BIN" || true

mkdir -p "$LLVM_BUILD"
pushd "$LLVM_BUILD"

cmake -G Ninja \
  -DLLVM_TARGETS_TO_BUILD="X86" \
  -DCMAKE_BUILD_TYPE=Release \
  -DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra;lld" \
  -DLLVM_ENABLE_RUNTIMES="compiler-rt;libcxx;libunwind" \
  "$LLVM_SRC"

popd
```

Result (truncated):

```
-- Configuring done
CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-ranlib>

  Target "llvm-ranlib" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:237 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:297 (builtin_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-strip>

  Target "llvm-strip" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:237 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:297 (builtin_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-ranlib>

  Target "llvm-ranlib" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:377 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:502 (runtime_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-strip>

  Target "llvm-strip" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:377 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:502 (runtime_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-ranlib>

  Target "llvm-ranlib" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:237 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:297 (builtin_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-strip>

  Target "llvm-strip" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:237 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:297 (builtin_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-ranlib>

  Target "llvm-ranlib" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:377 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:502 (runtime_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-strip>

  Target "llvm-strip" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:377 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:502 (runtime_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-ranlib>

  Target "llvm-ranlib" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:237 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:297 (builtin_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-strip>

  Target "llvm-strip" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:237 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:297 (builtin_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-ranlib>

  Target "llvm-ranlib" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:377 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:502 (runtime_default_target)


CMake Error at /usr/share/cmake/Modules/ExternalProject.cmake:2224
(add_custom_command):
  Error evaluating generator expression:

    $<TARGET_FILE:llvm-strip>

  Target "llvm-strip" is not an executable or library.
Call Stack (most recent call first):
  cmake/modules/LLVMExternalProjectUtils.cmake:259 (ExternalProject_Add_Step)
  runtimes/CMakeLists.txt:377 (llvm_ExternalProject_Add)
  runtimes/CMakeLists.txt:502 (runtime_default_target)


-- Generating done
CMake Generate step failed.  Build files cannot be regenerated correctly.
```

Same result trying to build DistributionExample.cmake per
https://releases.llvm.org/10.0.0/docs/BuildingADistribution.html

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