cmake type_error ai_generated true

CMake Error: Target "mylib" has INTERFACE_LIBRARY type but target_link_libraries was called with non-INTERFACE keyword.

ID: cmake/target-link-libraries-interface-mismatch

Also available as: JSON · Markdown · 中文
90%Fix Rate
88%Confidence
1Evidence
2023-11-20First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
CMake 3.12 active — — —
CMake 3.18 active — — —
CMake 3.27 active — — —

Root Cause

An INTERFACE library target can only be linked using INTERFACE keyword in target_link_libraries, but PUBLIC or PRIVATE was used instead.

generic

中文

INTERFACE 库目标只能使用 INTERFACE 关键字在 target_link_libraries 中链接，但使用了 PUBLIC 或 PRIVATE。

Official Documentation

https://cmake.org/cmake/help/latest/command/target_link_libraries.html

Workarounds

  1. 95% success Replace target_link_libraries(mylib PUBLIC some_dep) with target_link_libraries(mylib INTERFACE some_dep). Example: target_link_libraries(mylib INTERFACE some_dep). 
    Replace target_link_libraries(mylib PUBLIC some_dep) with target_link_libraries(mylib INTERFACE some_dep). Example: target_link_libraries(mylib INTERFACE some_dep).
  2. 80% success If the target should have source files, change its type to STATIC or SHARED: add_library(mylib STATIC source.cpp). Then use PUBLIC/PRIVATE as needed. 
    If the target should have source files, change its type to STATIC or SHARED: add_library(mylib STATIC source.cpp). Then use PUBLIC/PRIVATE as needed.

中文步骤

  1. 将 target_link_libraries(mylib PUBLIC some_dep) 替换为 target_link_libraries(mylib INTERFACE some_dep)。示例：target_link_libraries(mylib INTERFACE some_dep)。
  2. 如果目标应有源文件，将其类型更改为 STATIC 或 SHARED：add_library(mylib STATIC source.cpp)。然后根据需要使用 PUBLIC/PRIVATE。

Dead Ends

Common approaches that don't work:

  1. 85% fail

    INTERFACE libraries are meant for header-only or pure-interface targets; changing type alters build semantics and may require source files.

  2. 95% fail

    The dependency is required for consuming targets to find headers or propagate compile definitions.