I ran into a problem when trying to generate elf2flt for a toolchain with different naming conventions than the usual (using --program-prefix and --program-suffix when generated).
In that case, elf2flt failed to install.
I tried to use the options --program-prefix and --program-suffix, which seem allowed in elf2flt configure, but it did nothing.
So I came up with this patch, which seems to solve the problem, at least for me.
It's a patch relative to a CVS version I downloaded yesterday, 08/10/2009