llvm-config.cmake not found

[as3ii]

I'm trying to compile it on arch linux arm on aarch64 (raspberry pi 3).
Here the output of cmake:

-- VC4CL standard library headers found: /home/as3ii/VC4C/../VC4CLStdLib/include/VC4CLStdLib.h
-- Enabling multi-threaded optimizations
-- CLang compiler found: /usr/bin/clang
-- Using enhanced OpenCL features of Clang 3.9+!
CMake Warning at CMakeLists.txt:245 (find_package):
  By not providing "FindLLVM.cmake" in CMAKE_MODULE_PATH this project has
  asked CMake to find a package configuration file provided by "LLVM", but
  CMake did not find one.

  Could not find a package configuration file provided by "LLVM" with any of
  the following names:

    LLVMConfig.cmake
    llvm-config.cmake

  Add the installation prefix of "LLVM" to CMAKE_PREFIX_PATH or set
  "LLVM_DIR" to a directory containing one of the above files.  If "LLVM"
  provides a separate development package or SDK, be sure it has been
  installed.


CMake Warning at CMakeLists.txt:269 (message):
  LLVM library front-end enabled, but LLVM library was not found!


CMake Warning at CMakeLists.txt:274 (message):
   Neither SPIR-V nor LLVM library front-end are configured!

-- found clang-format: /usr/bin/clang-format
-- build deb package...
-- Debian package expects VC4CL standard library PCH to be located in: /home/as3ii/VC4C/../VC4CLStdLib/include/VC4CLStdLib.h.pch
-- Configuring done
-- Generating done
-- Build files have been written to: /home/as3ii/VC4C

[doe300]

Do you have llvm-dev or any specific version of it (e.g. llvm-3.9-dev) installed? These packages should provide the LLVMConfig.cmake file.

[as3ii]

Do you have llvm-dev or any specific version of it (e.g. llvm-3.9-dev) installed? These packages should provide the LLVMConfig.cmake file.

only llvm-libs 7.0.1-2 which was installed with clang 7.0.1-1 and contains the LLVM runtime libraries

[doe300]

Then you need to install the corresponding llvm*-dev package (llvm-7-dev I think)

[as3ii]

ok, I found the right package, thanks