[ostree] syntax-check: add syntactic rule to prohibit gs_unref_*

[Giuseppe Scrivano <gscrivano src gnome org>]

commit f38ec6dfdf0c564ab87f5aa809ad9785bc7e3bcc
Author: Giuseppe Scrivano <gscrivan redhat com>
Date:   Tue May 12 09:39:13 2015 +0200

    syntax-check: add syntactic rule to prohibit gs_unref_*
    
    Signed-off-by: Giuseppe Scrivano <gscrivan redhat com>

 maint.mk |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/maint.mk b/maint.mk
index ff5400f..9b77357 100644
--- a/maint.mk
+++ b/maint.mk
@@ -1032,6 +1032,11 @@ sc_const_long_option:
        halt='add "const" to the above declarations'                    \
          $(_sc_search_regexp)
 
+sc_prohibit_gs_unref:
+       @prohibit='\bgs_unref_(keyfile|variant*|ptrarray|hashtable|bytes|object)\b' \
+       halt="do not use gs_unref_*; use g_autoptr instead"             \
+         $(_sc_search_regexp)
+
 NEWS_hash =                                                            \
   $$($(SED) -n '/^\*.* $(PREV_VERSION_REGEXP) ([0-9-]*)/,$$p'          \
        $(srcdir)/NEWS                                                  \