sync code with last improvements from OpenBSD

dist/fontconfig/conf.d/link_confs.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import argparse
+import platform
+from pathlib import PurePath
+
+if __name__=='__main__':
+    parser = argparse.ArgumentParser()
+    parser.add_argument('availpath')
+    parser.add_argument('confpath')
+    parser.add_argument('links', nargs='+')
+    args = parser.parse_args()
+
+    if os.path.isabs(args.confpath):
+        destdir = os.environ.get('DESTDIR')
+        if destdir:
+            # c:\destdir + c:\prefix must produce c:\destdir\prefix
+            confpath = str(PurePath(destdir, *PurePath(args.confpath).parts[1:]))
+        else:
+            confpath = args.confpath
+    else:
+        confpath = os.path.join(os.environ['MESON_INSTALL_DESTDIR_PREFIX'], args.confpath)
+
+    if not os.path.exists(confpath):
+        os.makedirs(confpath)
+
+    for link in args.links:
+        src = os.path.join(args.availpath, link)
+        dst = os.path.join(confpath, link)
+        try:
+            os.remove(dst)
+        except FileNotFoundError:
+            pass
+        try:
+            os.symlink(src, dst)
+        except NotImplementedError:
+            # Not supported on this version of Windows
+            break
+        except OSError as e:
+            # Symlink privileges are not available
+            if platform.system().lower() == 'windows' and e.winerror == 1314:
+                break
+            raise