appleseed-help · Google Summer of Code

I am trying to build OSL shared libs locally for appleseed ( I have built a compatible version of LLVM before this). No matter what I do the OSL is unable to find the built LLVM libs.
It gives me this error when I do so,

Error

geck@geck:~/Downloads/osl_build$ cmake -DLLVM_VERSION=5.0.1 -DLLVM_DIRECTORY=/usr/local ../OpenShadingLanguage-Release-1.10.3
-- The CXX compiler identification is GNU 11.4.0
-- The C compiler identification is GNU 11.4.0
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Building OSL 1.10.3
-- CMake version is 3.22.1
CMake Deprecation Warning at CMakeLists.txt:20 (cmake_policy):
The OLD behavior for policy CMP0046 will be removed from a future version
of CMake.

The cmake-policies(7) manual explains that the OLD behaviors of all
policies are deprecated and that a policy should be set to OLD only under
specific short-term circumstances. Projects should be ported to the NEW
behavior and not rely on setting a policy to OLD.

-- Project build dir = /home/geck/Downloads/osl_build
-- Project install dir = /usr/local
-- platform = linux64
-- CMAKE_CXX_COMPILER is /usr/bin/c++
-- CMAKE_CXX_COMPILER_ID is GNU
-- Building for C++11
-- Setting Namespace to: OSL_v1_10
-- Using OpenImageIO 2.2.18
CMake Error at /usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
Could NOT find LLVM (missing: LLVM_LIBRARIES) (found suitable version
"5.0.1", minimum required is "4.0")
Call Stack (most recent call first):
/usr/share/cmake-3.22/Modules/FindPackageHandleStandardArgs.cmake:594 (_FPHSA_FAILURE_MESSAGE)
src/cmake/modules/FindLLVM.cmake:113 (find_package_handle_standard_args)
src/cmake/externalpackages.cmake:70 (find_package)
CMakeLists.txt:133 (include)

-- Configuring incomplete, errors occurred!

i've been at this for a while now and I am unable to figure out what to do.
I have tried multiple flags for the CMake command, here is what the make help command for OSL returns

 LLVM-related options:
      LLVM_VERSION=4.0         Specify which LLVM version to use
      LLVM_DIRECTORY=xx        Specify where LLVM lives
      LLVM_NAMESPACE=xx        Specify custom LLVM namespace
      LLVM_STATIC=1            Use static LLVM libraries
      USE_LLVM_BITCODE=0       Don't generate embedded LLVM bitcode
      USE_BOOST_WAVE=1         Force boost wave rather than clang preprocessor

Daniel Rossberg (Aug 24 2023 at 12:37):

It's a while ago, since I successfully build OSL. Therefore, I cannot help with a success story. But, did you had a look at the CMake GUI? Do the values make sense there?

Abhiram (Aug 25 2023 at 05:24):

No, I haven't used the CMake GUI yet. I have been trying to use CMake CLI flags itself. Will try and build it using GUI

Abhiram (Aug 26 2023 at 13:24):

I started from scratch by building LLVM libs again, now I used CMake GUI to set it up. OSL is able to detect LLVM after some modifications!

Daniel Rossberg (Aug 26 2023 at 14:08):

The point with using the CMake GUI is not that it generates different makefiles, but it shows you all options with their values. There you can look for suspicious ones.

Abhiram (Aug 26 2023 at 17:44):

Yes got it. Seeing all the options definitely helped me get a clear picture, maybe the re-building fixed the issue because values seemed correct to me in the GUI

Stream: Google Summer of Code

Topic: appleseed-help

Abhiram (Aug 23 2023 at 18:31):

Daniel Rossberg (Aug 24 2023 at 12:37):

Abhiram (Aug 25 2023 at 05:24):

Abhiram (Aug 26 2023 at 13:24):

Daniel Rossberg (Aug 26 2023 at 14:08):

Abhiram (Aug 26 2023 at 17:44):