[jhbuild] Only point aclocal to existing directories

[Frederic Peters <fpeters src gnome org>]

commit 8493af112694b2d1df8c374ec58e0efb50dfbbd4
Author: Frédéric Péters <fpeters 0d be>
Date:   Tue Feb 9 17:16:43 2010 +0100

    Only point aclocal to existing directories

 jhbuild/config.py |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/jhbuild/config.py b/jhbuild/config.py
index 6009829..4ab415b 100644
--- a/jhbuild/config.py
+++ b/jhbuild/config.py
@@ -361,8 +361,10 @@ class Config:
                 os.makedirs(aclocaldir)
             except:
                 raise FatalError(_("Can't create %s directory") % aclocaldir)
-        addpath('ACLOCAL_FLAGS', '/usr/share/aclocal')
-        addpath('ACLOCAL_FLAGS', '/usr/local/share/aclocal')
+        if os.path.exists('/usr/share/aclocal'):
+            addpath('ACLOCAL_FLAGS', '/usr/share/aclocal')
+        if os.path.exists('/usr/local/share/aclocal'):
+            addpath('ACLOCAL_FLAGS', '/usr/local/share/aclocal')
         addpath('ACLOCAL_FLAGS', aclocaldir)
 
         # PERL5LIB