./configure.sh crashing on LLVM_TABLEGEN_EXE not set

[billhollings]

When running ./configure.sh I'm running into a crash error on the following errors:

CMake Error at cmake/modules/TableGen.cmake:163 (if):
  if given arguments:

    "STREQUAL" "llvm-tblgen"

  Unknown arguments specified
Call Stack (most recent call first):
  utils/TableGen/CMakeLists.txt:5 (add_tablegen)

...

CMake Error at cmake/modules/TableGen.cmake:10 (message):
  LLVM_TABLEGEN_EXE not set
Call Stack (most recent call first):
  include/llvm/IR/CMakeLists.txt:2 (tablegen)

Probably just an environment issue, but there's not a lot on the net about this, and I'd appreciate some advice and assistance.

[3Shain]

brew install llvm@15 I think this should work, or remove the -DLLVM_TABLEGEN="$LLVM_TABLEGEN" \ line (there are two).

Well I expected an empty string to be effectively a no-op but now it turns out to be not the case… I may update the document or script later.

[3Shain]

by the way you may skip this part https://github.com/3Shain/dxmt/blob/main/configure.sh#L16-L35, they are only required if airconv windows build is enabled.

[billhollings]

Thanks. Installing llvm@15 via brew fixed the config issue. And thanks for highlighting the inapplicable Windows build.

[fspkwon]

ive fixed this: #55 but its macports and llvm15 was only part of the problem also has to enable static libcc and export LLVM_TABLEGEN=/opt/local/bin/llvm-tblgen-mp-15