Merge branch 'develop' of github.com:easybuilders/easybuild-docs into…

… develop

docs/easybuild-v5/enhancements.md

@@ -5,10 +5,38 @@
 Various significant enhancements are included in EasyBuild v5.0, including:
 
 * [`run_shell_cmd` function][run_shell_cmd]
+* [Granular exit codes][granular_exit_codes]
+* [Reproducible tarballs][reproducible_tarballs]
 
 ---
 
 ## `run_shell_cmd` function { : #run_shell_cmd }
 
 See dedicated page on the new [`run_shell_cmd` function](run_shell_cmd.md).
 
+## Granular exit codes { : #granular_exit_codes }
+
+EasyBuild v5 now uses a range of ~50 exit codes instead of just 0 for normal
+termination and 1 for unexpected termination. Each non-zero exit code
+correlates to the specific type of error or failure that caused the
+termination of the program. For instance, a missing easyconfig or a failed
+checksum check. The full list of exit codes is defined in the class
+[easybuild.tools.build_log.EasyBuildExit](https://github.com/easybuilders/easybuild-framework/blob/main/easybuild/tools/build_log.py#L74).
+
+EasyBuild will always return its own exit codes on termination. Other exit
+codes from external processes executed through `run_shell_cmd` or HTTP response
+status codes are reported in the corresponding logs.
+
+## Reproducible tarballs { : #reproducible_tarballs}
+
+EasyBuild can now generate reproducible tarballs of sources cloned from Git
+repositories. This means that those sources using the `git_config` option will
+now have consistent contents across different systems and across time, allowing
+to reliably validate them with checksums. EasyBuild follows the
+[archival guidelines from reproducible-builds.org](https://reproducible-builds.org/docs/archives/) 
+to generate those reproducible tarballs.
+
+This new feature does not apply to sources cloned with `keep_git_dir` enabled.
+Including the `.git` folder in the sources is inherently time-dependent as it
+contains information about the clone action itself, which hinders the creation
+of a reproducible tarball.

docs/easystack-files.md

@@ -107,6 +107,20 @@ easyconfigs:
 
 This is not recommended however, as short options are more difficult to interpret by humans.
 
+If you use an option that can be set multiple times (namely `amend` and `try-amend`),
+you can supply the various values as a list under that option.
+For example, to set various site customization easyconfig parameters for a MATLAB without editing the easyconfig, one can use:
+
+``` yaml
+easyconfigs:
+  - MATLAB-2023a.eb:
+      options:
+        try-amend:
+          - license_server=hostname
+          - license_server_port=12345
+          - key=abc-123
+```
+
 
 ## Combining command line options with options in an easystack file {: #easystack_combining_options }
 

docs/version-specific/supported-software/l/libvdwxc.md

@@ -6,7 +6,7 @@ search:
 
 libvdwxc is a general library for evaluating energy and potential for exchange-correlation (XC) functionals from the vdW-DF family that can be used with various of density functional theory (DFT) codes.
 
-*homepage*: <http://libvdwxc.org>
+*homepage*: <https://libvdwxc.materialsmodeling.org/>
 
 version | toolchain
 --------|----------