Dejagnu gcc testsuite error

[Manpreet Singh]

Hi,
   when i run gcc testsuite for cross compiler x86_i586-gcc using dejagnu
output is:

FAIL :- 
/opt/...../cdk/x86/i586/lib/gcc/i386-unknown-elf/4.4.5/../../../../i386-unknown-elf/bin/ld:
cannot find -lm
collect2: ld returned 1 exit status

What is the reason of this failure? And
What could be the solution?
If its an linker error
How would i set linker path for libraries in dejagnu or something else
need to be configured?

Thanks & regards
mappy