[jhbuild/desrt/master: 28/28] scripts: add a debian-mkequivs script

[Ryan Lortie <desrt src gnome org>]

commit 75b3d773a99d4c6fb36dbb54243dd77505a5ed32
Author: Ryan Lortie <desrt desrt ca>
Date:   Sat Jan 3 19:58:43 2015 -0500

    scripts: add a debian-mkequivs script
    
    Add a neat hack to generate a .deb file that depends on sysdeps of
    jhbuild.
    
    This has at least two uses:
    
     - generating a package that people can download and install with
       gdebi
       in order to get all build dependencies satisfied
    
     - generating a package that can be marked as a keeper in debfoster
       to
       keep a large number of jhbuild-required dependencies installed
       without too much additional noise
    
    https://bugzilla.gnome.org/show_bug.cgi?id=742251

 scripts/update-debian-sysdeps.py |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/scripts/update-debian-sysdeps.py b/scripts/update-debian-sysdeps.py
index 7c3a679..c5d04f3 100755
--- a/scripts/update-debian-sysdeps.py
+++ b/scripts/update-debian-sysdeps.py
@@ -39,7 +39,8 @@ path_paths = ['/usr/bin', '/usr/sbin', '/bin', '/sbin']
 python2_paths = ['/usr/lib/python2.7/dist-packages']
 
 # things that we know we won't find, either because we're not clever
-# enough (xml) or because of alternatives (not listed in apt-file)
+# enough (xml), because of alternatives (not listed in apt-file), or
+# because they are not available and not required on Debian
 hints = {
   'xml:http://docbook.sourceforge.net/release/xsl/current/':         ['docbook-xsl'],
   'path:cc':                                                         ['gcc', 'clang'],
@@ -47,6 +48,7 @@ hints = {
   'path:automake':                                                   ['automake'],
   'path:bogofilter':                                                 ['bogofilter'],
   'path:ruby':                                                       ['ruby'],  # needed for wheezy
+  'pkgconfig:bdw-gc-threaded':                                       [], # FreeBSD-only
   '' : []
 }
 
@@ -117,7 +119,8 @@ def handle_distro(name, filemap, log = sys.stderr):
     for key in sorted(keys):
         if key not in result:
             if key in hints:
-                result[key] = hints[key]
+                if len(hints[key]):
+                    result[key] = hints[key]
             else:
                 log.write("# warning: {}: unable to locate dependency '{}'\n".format(name, key))