Conan package_id fixed to support different recipes for different compilers

conanfile.py

@@ -114,4 +114,6 @@ class UnitsConan(ConanFile):
                 ])
 
     def package_id(self):
-        self.info.header_only()
+        self.info.settings.clear()
+        self.info.settings.compiler = self.settings.compiler
+        self.info.settings.compiler.version = self.settings.compiler.version