[bug] CMake can't resolve libraries of conan editable packages with subprojects

[zubrailx]

Environment details

• Operating System+version: Linux host 6.1.19-gentoo-x86_64
• Compiler+version: gcc (Gentoo 12.2.1_p20230428-r1 p2) 12.2.1
• Conan version: Conan version 2.0.6
• Python version: Python 3.11.3

Steps to reproduce

Description

I tried to rewrite example examples2/tutorial/developing_packages/editable_packages using submodules hello and say, but when I did it CMake stopped resolving libraries frommodules on which it depends (from say module in case of cmake cache generation for hello).

Configuration

say/conanfile.py:

from conan import ConanFile
from conan.tools.cmake import CMakeToolchain, CMake, cmake_layout

class SayConan(ConanFile):
    name = "say"
    version = "1.0"

    # Binary configuration
    settings = "os", "compiler", "build_type", "arch"
    options = {"shared": [True, False], "fPIC": [True, False]}
    default_options = {"shared": False, "fPIC": True}

    # Sources are located in the same place as this recipe, copy them to the recipe
    exports_sources = "CMakeLists.txt", "src/*", "include/*"

    _folders_rel_root = ".."
    _folders_rel_sub = "say"

    def config_options(self):
        if self.settings.os == "Windows":
            del self.options.fPIC

    def layout(self):
        self.folders.root = self._folders_rel_root
        self.folders.subproject = self._folders_rel_sub
        cmake_layout(self)

    def generate(self):
        tc = CMakeToolchain(self)
        tc.generate()

    def build(self):
        cmake = CMake(self)
        cmake.configure()
        cmake.build()

    def package(self):
        cmake = CMake(self)
        cmake.install()

    def package_info(self):
        self.cpp_info.libs = ["say"]

hello/conanfile.py:

from conan import ConanFile
from conan.tools.cmake import cmake_layout

class HelloConan(ConanFile):
    name = "hello"
    version = "1.0"

    settings = "os", "compiler", "build_type", "arch"

    generators = "CMakeToolchain", "CMakeDeps"
    requires = "say/1.0"

    _folders_rel_root = ".."
    _folders_rel_sub = "hello"

    def layout(self):
        self.folders.root = self._folders_rel_root
        self.folders.subproject = self._folders_rel_sub
        cmake_layout(self)

Steps

1. Go to root of current example
2. Add say to editable conan editable add say
3. Execute in order for say:

cd say
conan install .
cmake --preset conan-release
cmake --build --preset conan-release
cd ..

4. Now try the same for hello:

cd hello
conan install .
cmake --preset conan-release # <- cmake error

Logs

(conan) nikit@host hello % cmake --preset conan-release
Preset CMake variables:

  CMAKE_BUILD_TYPE="Release"
  CMAKE_POLICY_DEFAULT_CMP0091="NEW"
  CMAKE_TOOLCHAIN_FILE:FILEPATH="/home/nikit/Workspaces/research/conan/simple/examples2/tutorial/developing_packages/editable_packages/hello/build/Release/generators/conan_toolchain.cmake"

-- Using Conan toolchain: /home/nikit/Workspaces/research/conan/simple/examples2/tutorial/developing_packages/editable_packages/hello/build/Release/generators/conan_toolchain.cmake
-- Conan toolchain: C++ Standard 20 with extensions OFF
-- Conan: Target declared 'say::say'
CMake Error at build/Release/generators/cmakedeps_macros.cmake:64 (message):
  Library 'say' not found in package.  If 'say' is a system library, declare
  it with 'cpp_info.system_libs' property
Call Stack (most recent call first):
  build/Release/generators/say-Target-release.cmake:24 (conan_package_library_targets)
  build/Release/generators/sayTargets.cmake:26 (include)
  build/Release/generators/say-config.cmake:16 (include)
  CMakeLists.txt:5 (find_package)

[memsharded]

Hi @zubrailx

Thanks for reporting and for the detailed and minimal repro case, it really helps to investigate.
Indeed it seems a gap in editable packages I am exploring a solution in #13983, I still need to add tests, etc, but it seemed it solved your repro case.

Adding this to the next 2.0.7 release.

[memsharded]

Fixed in #13983 for next 2.0.7