from ./configure --help of gnustep-gui-0.9.4
<snip>
Optional Packages:
--with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
--without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)
--with-x use the X Window System
--with-jpeg-library=DIR JPEG library file are in DIR
--with-jpeg-include=DIR JPEG include files are in DIR
--with-tiff-library=DIR TIFF library file are in DIR
--with-tiff-include=DIR TIFF include files are in DIR
--with-ungif-library=DIR UNGIF library file are in DIR
--with-ungif-include=DIR UNGIF include files are in DIR
--with-audiofile-library=DIR AUDIOFILE library file are in DIR
--with-audiofile-include=DIR AUDIOFILE include files are in DIR