Not sure which is the right forum for this, so apologies if you think it should go somewhere else. I'm trying to compile GMP under Cygwin / WinXP. GMP = Gnu MP bignum library. Unfortunately, somewhere in the Gygwin setup or GMP (I would assume it's somewhere in Cygwin) there is a path to my MinGW tools, which used to reside in "C:/Program Files/MinGW" Of course, being linuxy, it muxes up when it comes to spaces, and I get the error below. I've re-installed MinGW at "C:/MinGW", changed all my windows path variables and every registry entry that had MinGW somewhere in it, but GMP's ./configure still tries the Program Files location. I grep'd my Cygwin /etc dir and the entire GMP directory for mingw with no luck. Does anyone know where I can set the ??toolpath?? for Cygwin or GMP or whatever it is so that it points to "C:/MinGW" instead of "C:/Program Files/MinGW". Would be a great help, thanks in advance. [Edited by - Krylloan on November 22, 2004 1:46:36 AM]