Greatly simplify circular Requires checking

Instead of keeping of list of packages in the current Requires chain and
searching it repeatedly, just mark each package as part of the chain or
not. This nearly cuts in half the time on a particularly rough torture
test I have.

1 files changed, 1 insertions, 0 deletions

diff --git a/pkg.h b/pkg.h
index e12aab2..5ead2a6 100644
--- a/pkg.h
+++ b/pkg.h
@@ -80,6 +80,7 @@ struct _Package
   int path_position; /* used to order packages by position in path of their .pc file, lower number means earlier in path */
   int libs_num; /* Number of times the "Libs" header has been seen */
   int libs_private_num;  /* Number of times the "Libs.private" header has been seen */
+  gboolean in_requires_chain; /* package is in current Requires chain */
 };
 
 Package *get_package               (const char *name);