Problem with macros at build
I am using Debian x64

```
root@5:~/github/cpuminer-multi# ./autogen.sh
aclocal: configure.ac: 6: macro `AM_INIT_AUTOMAKE' not found in library
aclocal: configure.ac: 10: macro `AM_MAINTAINER_MODE' not found in library
aclocal: configure.ac: 15: macro `AM_PROG_CC_C_O' not found in library
aclocal: configure.ac: 16: macro `AM_PROG_AS' not found in library
aclocal: configure.ac: 115: macro `AM_CONDITIONAL' not found in library
aclocal: configure.ac: 116: macro `AM_CONDITIONAL' not found in library
aclocal: configure.ac: 117: macro `AM_CONDITIONAL' not found in library
aclocal: configure.ac: 118: macro `AM_CONDITIONAL' not found in library
aclocal: configure.ac: 119: macro `AM_CONDITIONAL' not found in library
aclocal: configure.ac: 120: macro `AM_CONDITIONAL' not found in library
```

The first problem was the `aclocal` complaining about the `/usr/local/share/aclocal-` folder, when i really expected to claim for ``/usr/local/share/aclocal` instead.

Regarding of that, i would like to ask why are only Windows binaries released. 
Would help to have Linux binary ready to use even if not 100% optimized...

Any hint to build it?
