Library_Interface generated files issues.

[Blady-Com]

When using GPR2 library in relocatable mode, I got this error:

Building for config (BuildMode.dev, LibraryType.relocatable)
Compile
   [Ada]          libadalang-unit_files.adb
   [Ada]          libadalang-env_hooks.adb
   [Ada]          libadalang-internal_default_provider.adb
   [Ada]          libadalang-config_pragmas.adb
libadalang-internal_default_provider.adb:6:06: error: file "gpr2-project-attr_values.ads" not found
...

Many installed GPR2 files for relocatable mode are missing:

% ls -1 /Users/me/xnadalib-2025/include/gpr2.static | wc -l
     336
% ls -1 /Users/me/xnadalib-2025/include/gpr2.relocatable | wc -l 
     146

When I comment out Library_Interface in gpr2.gpr I got the correct number of file and no more error:

% ls -1 /Users/me/xnadalib-2025/include/gpr2.static | wc -l
     336
% ls -1 /Users/me/xnadalib-2025/include/gpr2.relocatable | wc -l
     336

Both original gpr2@0.gpr and modified gpr2.gpr are provided:

GPR2.zip