Resolved runtime MT problem

[franramirez688]

Issue related: conan-io/conan#9537 (comment)

Added manually -MT runtime to CC/CXX flags.

[arttet]

Hi @franramirez688

I ran the following command:

conan new hello/0.1 --template=cmake_lib

P.S. https://docs.conan.io/en/latest/reference/conanfile/tools/cmake/cmake.html

[franramirez688]

@arttet My PR has build_type=Debug and the pipeline is still using Release one

[settings]
arch=x86_64
arch_build=x86_64
arch_target=x86_64
build_type=Release
compiler=clang
compiler.cppstd=17
compiler.libcxx=libstdc++11
compiler.runtime=MT
compiler.version=13
os=Windows
os_build=Windows
[options]
[build_requires]
[env]
CC=C:/Program Files/LLVM/bin/clang
CFLAGS=-fsanitize=address
CXX=C:/Program Files/LLVM/bin/clang++
CXXFLAGS=-fsanitize=address
...

I don't why it's not using the PR settings instead

[arttet]

Because of .github/workflows/build.yml

[franramirez688]

Hi @franramirez688

I ran the following command:

And it's fine indeed. What I meant is that you're using as well:

    generators = "CMakeDeps", "CMakeToolchain"

So it's not necessary to declare a generate() method to use the default declarations. Have a look at this section.

[arttet]

Hi @franramirez688

Could you please tell me how to add cmake_definitions using new CMake.
I tried to use the following command:

cmake.definitions["WITH_TESTS"] = self.options.tests

But I got the following error:

        cmake.definitions["WITH_TESTS"] = self.options.tests
        AttributeError: 'CMake' object has no attribute 'definitions'

[arttet]

Is this the right way?

    def generate(self):
        tc = CMakeToolchain(self)
        tc.variables["WITH_TESTS"] = self.options.tests
        tc.generate()

[franramirez688]

Hi @franramirez688

Could you please tell me how to add cmake_definitions using new CMake. I tried to use the following command:

I guess what you're looking for is here

Now, you can define them as the following example:

def generate(self):
    tc = CMakeToolchain(self)
    tc.preprocessor_definitions["MYDEF"] = "MyValue"
    tc.preprocessor_definitions.debug["MYCONFIGDEF"] = "MyDebugValue"
    tc.preprocessor_definitions.release["MYCONFIGDEF"] = "MyReleaseValue"
    tc.generate()

It's the same as using add_definitions() in CMake.
If you use variables is like set() instead.

[arttet]

OK, thank you

[franramirez688]

Hi @arttet

Finally, I could add a workaround 😁
Certainly, Conan needs to manage better the MT runtime for Clang use cases because it's not doing it at all right now.