extension_control_path and "directory"

[Christoph Berg]

Re: Peter Eisentraut
> The new GUC extension_control_path specifies a path to look for
> extension control files.  The default value is $system, which looks in
> the compiled-in location, as before.

Is the expectation that this also works for the extension "directory"?

semver is still failing because it's shipping its .sql files in a
separate directory:

2025-04-23 09:06:24.864 UTC [422345] myon@contrib_regression ERROR:  could not 
open directory "/usr/share/postgresql/18/semver": No such file or directory
2025-04-23 09:06:24.864 UTC [422345] myon@contrib_regression STATEMENT:  CREATE 
EXTENSION semver;

$ cat 
debian/postgresql-18-semver/usr/share/postgresql/18/extension/semver.control
# semver extension
comment = 'Semantic version data type'
default_version = '0.40.0'

directory = 'semver'
module_pathname = '$libdir/semver'
relocatable = true

$ ls debian/postgresql-18-semver/usr/share/postgresql/18/semver/
semver--0.10.0--0.11.0.sql  semver--0.17.0--0.20.0.sql  
semver--0.30.0--0.31.0.sql  semver--0.32.1--0.40.0.sql
semver--0.11.0--0.12.0.sql  semver--0.20.0--0.21.0.sql  
semver--0.3.0--0.4.0.sql    semver--0.40.0.sql
semver--0.12.0--0.13.0.sql  semver--0.21.0--0.22.0.sql  
semver--0.31.0--0.31.1.sql  semver--0.5.0--0.10.0.sql
semver--0.13.0--0.15.0.sql  semver--0.2.1--0.2.4.sql    
semver--0.31.1--0.31.2.sql  semver.sql
semver--0.15.0--0.16.0.sql  semver--0.22.0--0.30.0.sql  
semver--0.31.2--0.32.0.sql  semver--unpackaged--0.2.1.sql
semver--0.16.0--0.17.0.sql  semver--0.2.4--0.3.0.sql    
semver--0.32.0--0.32.1.sql

Christoph