[feature+bug] conan.tools.gnu.autotools.Autotools can only configure in root source folder

[madebr]

Some times, configure scripts can be found in subdirectories.
Right now, ConanFile.source_folder is hard coded at

conan/conan/tools/gnu/autotools.py

Line 25 in 916cb10

configure_cmd = "{}/configure".format(self._conanfile.source_folder)

It would be VERY useful to be able to change this.

Environment Details (include every applicable attribute)

• Operating System+version: all
• Compiler+version: all
• Conan version: 1.39.0
• Python version: 3.9.6

[lasote]

Sure, let's do it.

Same as the new CMake one:

    def configure(self, source_folder=None):
        ...

        source = self._conanfile.source_folder
        if source_folder:
            source = os.path.join(self._conanfile.source_folder, source_folder)

[madebr]

I'm not properly versed in Conan's layout model,
but should Autotools follow it too?

[lasote]

Yes, I meant that the conan.tools.gnu.autotools.Autotools should do something similar to the current CMake one.