Hi! For an application I'm writing, I need the match_results::captures feature, which requires to recompile boost with BOOST_REGEX_MATCH_EXTRA. I did so and globally installed the modified boost-1.33.1 on my machine. However, several utilities installed on my machine that came with my Linux distribution (openSUSE-10.2) don't work with the modified library (including the yast2 package manager, which made it somewhat challenging to re-install the original version). So I have two questions: *) What is the recommended installation if applications requiring BOOST_REGEX_MATCH_EXTRA must be installed on the same machine together with applications that don't require this extension? *) Are there any chances that future versions of the boost_regex library will remove this compile-time distinction? Are the few extra bytes for the (unused) m_captures member in sub_match really such a big problem? Thanks & kind regards, Markus -- Markus Grabner - Computer Graphics and Vision Graz University of Technology, Inffeldgasse 16a/II, 8010 Graz, Austria Phone: +43/316/873-5041, Fax: +43/316/873-5050 WWW: http://www.icg.tugraz.at/Members/grabner