cmake install and find_package removed from conanfile

find_package() does not really work well for header only libraries

conanfile.py

@@ -24,6 +24,7 @@ from conans import ConanFile, CMake, tools
 from conans.tools import load
 from conans.errors import ConanInvalidConfiguration
 import re
+import os
 
 
 def get_version():
@@ -59,22 +60,17 @@ class UnitsConan(ConanFile):
         if self.settings.cppstd not in ["20", "gnu20"]:
             raise ConanInvalidConfiguration("Library units requires at least C++20 support")
 
-    def _configure_cmake(self):
+    def build(self):
         cmake = CMake(self)
         if tools.get_env("CONAN_RUN_TESTS", False):
             cmake.configure()
         else:
             cmake.configure(source_dir="%s/src" % self.source_folder)
-        return cmake
-
-    def build(self):
-        cmake = self._configure_cmake()
         cmake.build()
 
     def package(self):
         self.copy(pattern="*license*", dst="licenses", excludes="cmake/common/*", ignore_case=True, keep_path=False)
-        cmake = self._configure_cmake()
-        cmake.install()
+        self.copy(pattern="*", dst="include", src=os.path.join("src", "include"))
 
     def package_info(self):
         self.cpp_info.includedirs = ['include']

test_package/CMakeLists.txt

@@ -28,13 +28,7 @@ set(CMAKE_VERBOSE_MAKEFILE TRUE)
 include(${CMAKE_BINARY_DIR}/conanbuildinfo.cmake)
 conan_basic_setup(TARGETS)
 
-find_package(units CONFIG REQUIRED)
-
 # test conan-generated target
-add_executable(${PROJECT_NAME}_conan test_package.cpp)
-target_compile_features(${PROJECT_NAME}_conan PRIVATE cxx_std_20)  # conan is not able to propagate that yet :-(
-target_link_libraries(${PROJECT_NAME}_conan PRIVATE CONAN_PKG::mp-units)
-
-# test cmake target
-add_executable(${PROJECT_NAME}_cmake test_package.cpp)
-target_link_libraries(${PROJECT_NAME}_cmake PRIVATE mp::units)
+add_executable(${PROJECT_NAME} test_package.cpp)
+target_compile_features(${PROJECT_NAME} PRIVATE cxx_std_20)  # conan is not able to propagate that yet :-(
+target_link_libraries(${PROJECT_NAME} PRIVATE CONAN_PKG::mp-units)