llvm/include/llvm/Config/llvm-config.h and clang/AST/DeclNodes.inc missing

[Leon-Zhang]

I have been using cmake gui with following configurations

(LLVM_ENABLE_PROJECTS="clang;lldb;clang-tools-extra")

to generate sln visual studio project file for build, it can compile, but llvm-config.h file is not generated (from llvm/Config/llvm-config.h.cmake);
Also tried to include clang frontend and matcher headers, but gives inc file not found:

Error	C1083	Cannot open include file: 'clang/AST/DeclNodes.inc': No such file or directory
clang\include\clang\AST\ASTFwd.h	21

how to fix this? Thanks.

[Leon-Zhang]

Double checked,
"llvm\include\llvm\Config\llvm-config.h.cmake"
"llvm\include\llvm\Config\abi-breaking.h.cmake"
"llvm\include\llvm\Config\config.h.cmake"

Above 3 cmake files suppose to generate(process by llvm\utils\gn\build\write_cmake_config.py) corresponding header files while they did not as intended.

[Leon-Zhang]

Update: I am able to build using command line mode in console(MINGW64) instead of using visual stduio, seems missing files mentioned above are able to be produced by following command
cmake -DCMAKE_INSTALL_PREFIX=/e/ProgramFiles/llvm -DCMAKE_INSTALL_CONFIG_NAME=Debug -P cmake_install.cmake

But from cmake gui, seems there is no gui interface to execute such command.

[PavelKotov1]

Hello, dear friends!
I am having similar problem in llvm 16.02:
llvm-config.h header file is missing in the include\Config folder. There is llvm-config.h.cmake file present, but I am very new to cmake and cannot figure out how to produce llvm-config.h using the command from the previous post by Leon-Zhang [on Oct 21, 2022].
Could somebody be so nice and kind and explain how to produce the needed header by giving me detailed possibly step by step instructions.
With kind regards, Pavel Kotov.

[jaydaftari]

Hello, dear friends! I am having similar problem in llvm 16.02: llvm-config.h header file is missing in the include\Config folder. There is llvm-config.h.cmake file present, but I am very new to cmake and cannot figure out how to produce llvm-config.h using the command from the previous post by Leon-Zhang [on Oct 21, 2022]. Could somebody be so nice and kind and explain how to produce the needed header by giving me detailed possibly step by step instructions. With kind regards, Pavel Kotov.

Hi, Did you get the solution, I am facing the same issue currently.

[Leon-Zhang]

Hello, dear friends! I am having similar problem in llvm 16.02: llvm-config.h header file is missing in the include\Config folder. There is llvm-config.h.cmake file present, but I am very new to cmake and cannot figure out how to produce llvm-config.h using the command from the previous post by Leon-Zhang [on Oct 21, 2022]. Could somebody be so nice and kind and explain how to produce the needed header by giving me detailed possibly step by step instructions. With kind regards, Pavel Kotov.

Just use command line cmake to build, something like
cmake -DCMAKE_INSTALL_PREFIX=/e/ProgramFiles/llvm -DCMAKE_INSTALL_CONFIG_NAME=Debug -P cmake_install.cmake
@PavelKotov1 @jaydaftari