Changes between Version 255 and Version 256 of SummerOfCode

Timestamp:

Mar 5, 2015, 9:03:48 PM (9 years ago)

Author:

RJVB (René Bertin)

Comment:

--

SummerOfCode

@@ -175 +175 @@
 
 Unfortunately, enabling trace mode adds a significant performance penalty to the build process. However, the trace mode code can certainly be optimized using appropriate cache data structures, such as a modified [http://en.wikipedia.org/wiki/Trie Trie]. Your task would be to identify the performance bottle necks, draft appropriate caching data structures and implement them.
+
+* Difficulty: Medium to Easy
+* Programming languages: Tcl, C
+* Potential mentors: cal
+
+
+===== Auto-detection of build dependencies ===== #dependencies-gen
+
+When creating a new portfile one of the problems is always the specification of the complete (and preferably minimal) list of build dependencies, especially when one starts with a rather complete install where most dependencies are already available.
+
+It is possible to invert the trace mode logic so that it detects all files a configure and/or build process accesses, in ${prefix} but outside of the port's build directory. This information can then be used to generate a dependency tree and information from the registry can then be used to simplify that tree so that it only lists direct dependencies.
 
 * Difficulty: Medium to Easy