autoconf: configure.in: No such file or directory

[emammendes]

Hello

After a lot of struggle and help, I managed to get my programs in an automake 
format (configure;make;make install).  I have used same structure to all of 
them, and had no problem configure; make and make install on my machine at 
home.  Downloading the packages to my pc at the office. just one package 
didn't work.  Configure went ok but when I try make ....

make
cd . && /bin/sh /home/eduardo/programs/bispec_f90_automake/config/missing 
--run autoconf
autoconf: configure.in: No such file or directory
make: *** [configure] Error 1

There is no configure.in but configure.ac.  missing has a test for it.  What 
is going on?

Many thanks

Ed