vsapsai added a comment.
Looks like this breaks a modular build. I.e.,
cmake -GNinja ~/Projects/llvm/llvm-project/llvm \
-DLLVM_ENABLE_PROJECTS="clang;clang-tools-extra" \
-DLLVM_ENABLE_ASSERTIONS=ON \
-DCMAKE_BUILD_TYPE=RelWithDebInfo \
-DLLVM_ENABLE_MODULES=ON
ninja clangPseudoGrammar
fails with
While building module 'Clang_Basic' imported from
/Users/vsapsai/Projects/llvm/llvm-project/clang-tools-extra/pseudo/include/clang-pseudo/grammar/Grammar.h:55:
In file included from <module-includes>:4:
/Users/vsapsai/Projects/llvm/llvm-project/clang/include/clang/Basic/AttrKinds.h:27:10:
fatal error: 'clang/Basic/AttrList.inc' file not found
#include "clang/Basic/AttrList.inc"
^~~~~~~~~~~~~~~~~~~~~~~~~~
While building module 'Clang_Basic' imported from
/Users/vsapsai/Projects/llvm/llvm-project/clang-tools-extra/pseudo/include/clang-pseudo/grammar/Grammar.h:55:
While building module 'LLVM_Frontend_OpenMP' imported from
/Users/vsapsai/Projects/llvm/llvm-project/clang/include/clang/Basic/TargetInfo.h:34:
In file included from <module-includes>:2:
/Users/vsapsai/Projects/llvm/llvm-project/llvm/include/llvm/Frontend/OpenMP/OMPConstants.h:20:10:
fatal error: 'llvm/Frontend/OpenMP/OMP.h.inc' file not found
#include "llvm/Frontend/OpenMP/OMP.h.inc"
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from
/Users/vsapsai/Projects/llvm/llvm-project/clang-tools-extra/pseudo/lib/grammar/LRGraph.cpp:9:
In file included from
/Users/vsapsai/Projects/llvm/llvm-project/clang-tools-extra/pseudo/include/clang-pseudo/grammar/LRGraph.h:34:
/Users/vsapsai/Projects/llvm/llvm-project/clang-tools-extra/pseudo/include/clang-pseudo/grammar/Grammar.h:55:10:
fatal error: could not build module 'Clang_Basic'
#include "clang/Basic/TokenKinds.h"
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
3 errors generated.
My understanding is that the module 'Clang_Basic' needs .inc headers and this
module is pulled in by `#include "clang/Basic/TokenKinds.h"` at
"clang-tools-extra/pseudo/include/clang-pseudo/grammar/Grammar.h:55". When
those .inc headers aren't generated, the build fails. Don't know what would be
the best way to fix the issue, I was able to fix the build by commenting out
`list(REMOVE_ITEM LLVM_COMMON_DEPENDS clang-tablegen-targets)` in
"lib/grammar/CMakeLists.txt".
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D126731/new/
https://reviews.llvm.org/D126731
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