The recent backported bug fix for bug 1523 breaks compilation because snprintf() is unknown. Note this is lyx-1.3.x cvs I'm talking about. I haven't checked 1.4.x because it won't compile on this machine at all.
Index: lyxlength.C =================================================================== RCS file: /usr/local/lyx/cvsroot/lyx-devel/src/lyxlength.C,v retrieving revision 1.26.2.1 diff -u -p -u -p -r1.26.2.1 lyxlength.C --- lyxlength.C 22 Oct 2004 09:08:55 -0000 1.26.2.1 +++ lyxlength.C 4 Nov 2004 05:00:19 -0000 @@ -23,6 +23,7 @@ #include "Lsstream.h" #include <cstdlib> +#include <cstdio> using std::abs;