[cfe-dev] Question about a CMake macro in Clang repository
Stephane Rolland via cfe-dev
cfe-dev at lists.llvm.org
Fri Aug 21 17:15:14 PDT 2020
Hi, first message here, hope that's the right place to ask
I'm working on the packaging of an application (Cling++) which depends on
Clang and Llvm, for the NixOs operating system.
Currently my compilation fails at the Clang level with this error: Unknown
CMake command "find_first_existing_vc_file".
In the Clang repository there's:
find_first_existing_vc_file does not seem to be defined with the macro
keyword nor included with the include keyword inside the Clang repository.
However we can have a definition for this macro inside the Llvm repository:
11:macro(find_first_existing_vc_file out_var path)
How, by which mechanism is Clang compilation supposed to use/include this
macro from LLVM ?
In my case, the compilation of Clang fails with this message:
-- Performing Test CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG - Success
CMake Error at lib/Basic/CMakeLists.txt:7 (find_first_existing_vc_file):
Unknown CMake command "find_first_existing_vc_file".
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