Archive shared library in AIX (#11850)

* Archive shared library in AIX

This code change to ensure we archive shared libraries in AIX.

The things we do are:
Archive shared library
Install archived shared library
Build all must build the archived shared library
blibpath must have the archived shared library dependency.

* Archive shared library in AIX.

Made changes as per the review comments given in the first
PR request.

They are:-
Use self.environment.machines[t.for_machine].is_aix()
Remove trial spaces
Use of val instead of internal
Changed comments wherever requested

* Space after octothorpe

* Fixed failed test case causing build break during install section

* Moved AIX specific code to AIXDynamicLinker from backend

* Fix indentation, trailing spaces, add type annotations and Linux/macOS build break

* Remove some more trailing space issues

* Fixed the wrong return type in linkers

1 files changed, 8 insertions, 1 deletions

diff --git a/mesonbuild/minstall.py b/mesonbuild/minstall.py
index ec01fe729..49006917e 100644
--- a/mesonbuild/minstall.py
+++ b/mesonbuild/minstall.py
@@ -23,11 +23,12 @@ import shutil
 import subprocess
 import sys
 import typing as T
+import re
 
 from . import build, coredata, environment
 from .backend.backends import InstallData
 from .mesonlib import (MesonException, Popen_safe, RealPathAction, is_windows,
-                       setup_vsenv, pickle_load, is_osx, OptionKey)
+                       is_aix, setup_vsenv, pickle_load, is_osx, OptionKey)
 from .scripts import depfixer, destdir_join
 from .scripts.meson_exe import run_exe
 try:
@@ -709,6 +710,12 @@ class Installer:
 
     def install_targets(self, d: InstallData, dm: DirMaker, destdir: str, fullprefix: str) -> None:
         for t in d.targets:
+            # In AIX, we archive our shared libraries.  When we install any package in AIX we need to
+            # install the archive in which the shared library exists. The below code does the same.
+            # We change the .so files having lt_version or so_version to archive file install.
+            if is_aix():
+                if '.so' in t.fname:
+                    t.fname = re.sub('[.][a]([.]?([0-9]+))*([.]?([a-z]+))*', '.a', t.fname.replace('.so', '.a'))
             if not self.should_install(t):
                 continue
             if not os.path.exists(t.fname):