Using Host and Build Profile from CMakePresets #678
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I found a smart solution, which finally doesn't work as expected. And With this, CMakeCache variables are set expected, but CMake build failed for some reason. and build: The output directory for Conan is default, the recipe isn't any special |
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During reducing the problem, it compiles now for some circumstances. I'm not sure what the problem is, but it seems to be related to selected compiler by Conan and/or the profile... I continued with my experiments: > conan remove '*'
...
> rm -rf build; CMAKE_CXX_COMPILER=clang++ CXX=clang++ cmake --preset clang-libc++
...
-- The C compiler identification is GNU 13.2.0
-- The CXX compiler identification is Clang 18.1.3
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - failed
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc - broken
CMake Error at /opt/cmake/share/cmake-3.30/Modules/CMakeTestCCompiler.cmake:67 (message):
The C compiler
"/usr/bin/cc"
is not able to compile a simple test program.
...
> conan list 'catch*/*:*' --format=compact
Local Cache
catch2/3.7.1
catch2/3.7.1#431d772165ed0bc5adaabaa44a9f53ca%1726584452.35 (2024-09-17 14:47:32 UTC)
catch2/3.7.1#431d772165ed0bc5adaabaa44a9f53ca:33ee53aab1b9bfd22e13914fa502a98606b452d9
settings: Linux, x86_64, Release, clang, gnu17, libc++, 18
options(diff):
catch2/3.7.1#431d772165ed0bc5adaabaa44a9f53ca:9976135ac672b25daf671f2b7a42dcb840fc7db9
settings: Linux, x86_64, Debug, clang, gnu17, libc++, 18
options(diff):
So Conan related settings seems to be correct to me :( But: > rm -rf build; CC=clang CXX=clang++ cmake --preset clang-libc++
...
# all fine with explicit given CC - even unused !!!!!
> cmake --build --preset clang-libc++-release
...
Error while scanning dependencies for /workspaces/conan-cmake-issue/testsuite/test_me.cpp:
/workspaces/conan-cmake-issue/testsuite/test_me.cpp:1:10: fatal error: 'catch2/catch_test_macros.hpp' file not found
[2/8] Scanning /workspaces/conan-cmake-issue/source/main.cpp for CXX dependencies
ninja: build stopped: subcommand failed.Anyway, somewhere I've got lost ... I created a branch conan-explicit with call of |
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I like to start with the positive things: it works as intended, but if you have other ideas, problems rises as usually :)
Anyway, I use
CMakePresets.jsonin that way:where I clone the git repo
cmake-conaninto${sourceDir}/cmake/cmake-conanand inherits to all my presets, which works as expected.To support macOS users with clang and libc++ on my Linux box, I have a special target
clang-libc++(since I don't own a Mac).My intention is to use
cmake-conanwith this CMake preset.The first step was to write a
defaultprofile for conan:The conan provider should take this into account for host and build profile, but doesn't.
Second try, I wrote a CMake cache file
clang-libc++-cachevars.cmake:to inject this into the CMake cache as it is done with the
CMakePresets.jsonfrom above, and call it:Finally, the provider is always creating the build profile:
and the CMakeCache.txt contains always:
To me, it looks as the variables
CONAN_BUILD_PROFILEandCONAN_HOST_PROFILEaren't honored as described in the docs, isn't it or do I use it not in the right way?The text was updated successfully, but these errors were encountered: