Save kernel autoconf options in a cache file

We're getting enough autoconf tests now that it's a significant chunk of
the build time.  Adding this cache shaves several seconds off for me.

	* hash.cxx (find_hash): Compute a separate script-independent hash
	for caching autoconf values, saved in session.stapconf_path.
	* buildrun.cxx (compile_pass): Tweak the Makefile to read/save
	the autoconf values in the cache directory

1 files changed, 7 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index b411c49e..9a3c3060 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2009-02-06  Josh Stone  <jistone@redhat.com>
+
+	* hash.cxx (find_hash): Compute a separate script-independent hash
+	for caching autoconf values, saved in session.stapconf_path.
+	* buildrun.cxx (compile_pass): Tweak the Makefile to read/save
+	the autoconf values in the cache directory
+
 2009-02-06  Frank Ch. Eigler  <fche@elastic.org>
 
 	* buildrun.cxx: Add STAPCONF_PROCFS_OWNER test.