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6828df7d21
Pass build options directly via `COMPILE_DEFINTIONS` and
`LINK_LIBRARIES`, instead of "tunneling" them through `CMAKE_FLAGS`.
The latter method breaks when passing `Threads::Threads` as library via
`CMAKE_REQUIRED_LIBRARIES`, while also being complex and fragile.
Example:
```
-- Performing Test HAVE_FSETXATTR_5
CMake Error at bld/CMakeFiles/CMakeTmp/CMakeLists.txt:27 (target_link_libraries):
Target "cmTC_3386e" links to:
Threads::Threads
but the target was not found. Possible reasons include:
* There is a typo in the target name.
* A find_package call is missing for an IMPORTED target.
* An ALIAS target is missing.
CMake Error at CMake/Macros.cmake:51 (try_compile):
Failed to generate test project build system.
Call Stack (most recent call first):
CMakeLists.txt:1684 (curl_internal_test)
```
Ref: https://github.com/curl/curl/actions/runs/23792043930/job/69329796592?pr=21168#step:38:318
Note: a side-effect is no longer passing C compiler flags (e.g.
`CMAKE_REQUIRED_FLAGS`) to the _linker_. This should not be an issue,
though CMake is passing them during its built-in detections.
Ref: https://cmake.org/cmake/help/v3.18/command/try_compile.html
Closes #21176
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||
|---|---|---|
| .. | ||
| cmake_uninstall.in.cmake | ||
| curl-config.in.cmake | ||
| CurlSymbolHiding.cmake | ||
| CurlTests.c | ||
| FindBrotli.cmake | ||
| FindCares.cmake | ||
| FindGnuTLS.cmake | ||
| FindGSS.cmake | ||
| FindLDAP.cmake | ||
| FindLibbacktrace.cmake | ||
| FindLibgsasl.cmake | ||
| FindLibidn2.cmake | ||
| FindLibpsl.cmake | ||
| FindLibssh2.cmake | ||
| FindLibssh.cmake | ||
| FindLibuv.cmake | ||
| FindMbedTLS.cmake | ||
| FindNettle.cmake | ||
| FindNGHTTP2.cmake | ||
| FindNGHTTP3.cmake | ||
| FindNGTCP2.cmake | ||
| FindQuiche.cmake | ||
| FindRustls.cmake | ||
| FindWolfSSL.cmake | ||
| FindZstd.cmake | ||
| Macros.cmake | ||
| OtherTests.cmake | ||
| PickyWarnings.cmake | ||
| unix-cache.cmake | ||
| Utilities.cmake | ||
| win32-cache.cmake | ||