ninjabackend: Try symlinking and ignore if it doesn't work

Instead of checking if we're on Windows and not even trying, try to symlink and
if that fails due to insufficient privileges, then just continue. This allows
people who know what they're doing to allow users other than Administrators to
make symlinks on Windows, or allows them to just run Meson as an Administrator.

mesonbuild/backend/ninjabackend.py

@@ -1717,16 +1717,16 @@ rule FORTRAN_DEP_HACK
     def generate_shlib_aliases(self, target, outdir):
         basename = target.get_filename()
         aliases = target.get_aliaslist()
-        if not mesonlib.is_windows():
-            for alias in aliases:
-                aliasfile = os.path.join(self.environment.get_build_dir(), outdir, alias)
-                try:
-                    os.remove(aliasfile)
-                except Exception:
-                    pass
+        for alias in aliases:
+            aliasfile = os.path.join(self.environment.get_build_dir(), outdir, alias)
+            try:
+                os.remove(aliasfile)
+            except Exception:
+                pass
+            try:
                 os.symlink(basename, aliasfile)
-        else:
-            mlog.debug("Library versioning disabled because host does not support symlinks.")
+            except OSError:
+                mlog.debug("Library versioning disabled because we do not have symlink creation privileges")
 
     def generate_gcov_clean(self, outfile):
             gcno_elem = NinjaBuildElement(self.all_outputs, 'clean-gcno', 'CUSTOM_COMMAND', 'PHONY')