cross compiling --error when autoconf

[Hema K]

hi

actually i want to compile(ie cross compile mutt) with mb-gcc(for the 
microblaze processor and uclinux OS) instead of gcc.

so by studying the documentation of autoconf, i started by 

(1) adding AC_CANONICAL_SYSTEM in configure.in

(2) adding AC_TRY_RUN(mb-gcc) in configure.in

(3) adding AC_CANONICAL_TARGET(microbalze-uclinux) in configure.in



then  did autoupdate and autoconf 



iam getting the following 

------------------------------------------------

address@hidden:~/mutt-1.5.8$ autoconf

configure.in:16: warning: AC_RUN_IFELSE was called before AC_GNU_SOURCE

autoconf/specific.m4:348: AC_GNU_SOURCE is expanded from...

configure.in:16: the top level

----------------------------------------------

 configure.in is only there ,not configure.ac

i just want to know if i am going in the right track, and what must i do for 
the above error.



Thanks in advance

Regards

hema