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C++ modules have two variants which are of importance to CMake:
- `CXX_MODULES`: interface modules (those using `export module M;`,
`export module M:part;`, or `module M:internal_part;`)
- `CXX_MODULE_HEADER_UNITS`: importable header units
Creating C++ modules or partitions are *not* supported in any other
source listing. This is because the source files must be installed (so
their scope matters), but not part of usage requirements (what it means
for a module source to be injected into a consumer is not clear at this
moment). Due to the way `FILE_SET` works with scopes, they are a perfect
fit as long as `INTERFACE` is not allowed (which it is not).
10 lines
167 B
CMake
10 lines
167 B
CMake
enable_language(C)
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add_library(nocxx)
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target_sources(nocxx
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PRIVATE
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sources/c-anchor.c
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PUBLIC
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FILE_SET fs TYPE CXX_MODULES FILES
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sources/module.cxx)
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