Ian Lance Taylor has been contributing to free software since 1990. His GNU/Taylor UUCP package was an early beta test for autoconf in 1991. He has contributed many patches to autoconf, including rewriting the support for a separate config.h file. He contributed support for conditionals in automake. He is currently the maintainer of the GNU binutils, which was one of the first widely distributed free software packages to adopt libtool. He worked on free software for many years at Cygnus Solutions, and is a founder of Zembu Labs.