Drop “forge” macros to use modern snapshot versioning

c4fs.spec

@@ -1,22 +1,21 @@
-%global forgeurl https://github.com/biojppm/c4fs
 # The project contains a version number, but a release has never been tagged.
 # The project is normally used as a git submodule and referred to by commit
 # hash.
 %global commit 8ffaf652758ea8bdd1389cf58f9542bc474e5413
+%global snapdate 20220102
 
 Name:           c4fs
 Summary:        C++ file system utilities
-Version:        0.0.1
+Version:        0.0.1^%{snapdate}git%(echo '%{commit}' | cut -b -7)
 # This is the same as the version number. To prevent undetected soversion
 # bumps, we nevertheless express it separately.
 %global so_version 0.0.1
-%forgemeta
 Release:        %autorelease
 
-URL:            %{forgeurl}
+URL:            https://github.com/biojppm/c4fs
 License:        MIT
 
-Source0:        %{forgesource}
+Source0:        %{url}/archive/%{commit}/c4fs-%{commit}.tar.gz
 
 # Upstream always wants to build with c4core as a git submodule, but we want to
 # unbundle it and build with an external library. We therefore maintain this
@@ -53,7 +52,7 @@ applications that use c4fs.
 
 
 %prep
-%forgeautosetup -p1
+%autosetup -n c4fs-%{commit} -p1
 
 # Remove/unbundle additional dependencies
 # c4project (CMake build scripts)