Try to look after on: http://packages.ubuntu.com under "Search the contents of packages" section.
http://packages.ubuntu.com/search?searchon=contents&keywords=stddef.h&mode=exactfilename&suite=hardy&arch=any
Try to look after on: http:// packages. ubuntu. com under "Search the contents of packages" section.
http:// packages. ubuntu. com/search? searchon= contents& keywords= stddef. h&mode= exactfilename& suite=hardy& arch=any