Merge branch 'cherry-pick-2-88e57340-LCG_100-patches' into 'LCG_100-patches'

Sweeping !762 from master to LCG_100-patches.
Use new post-install script to avoid problem with .filelist

See merge request !764

cmake/scripts/install_binary_tarfile.py

@@ -67,6 +67,11 @@ def install_tarfile(urltarfile, prefix, lcgprefix, with_hash=True, with_link=Tru
   #---run the post-install------------------------------------------------------
   postinstall = os.path.join(install_path, '.post-install.sh')
   if os.path.exists(postinstall) :
+    #---Replace the old post-install script with new one
+    with open(postinstall) as f:
+      if '#!/bin/sh' in f.read():
+        f.close()
+        shutil.copy(os.path.join(os.path.dirname(os.path.realpath(__file__)),'post-install.sh'), postinstall)
     os.environ['INSTALLDIR'] = prefix
     if lcgprefix  :
       os.environ['LCGRELEASES'] = lcgprefix.replace(';',':').replace(' ',':')