I kept getting this error. Im on centos and I already download the necessary dependencies. I even have the kernel-devel and stuff
[root@rheeka zaptel-1.2.9.1]# make clean
grep: /include/linux/autoconf.h: No such file or directory
rm -f torisatool makefw tor2fw.h radfw.h
rm -f ztcfg torisatool makefw ztmonitor ztspeed zttest fxotune
rm -f *.o ztcfg tzdriver sethdlc sethdlc-new
rm -f zonedata.lo tonezone.lo libtonezone.so *.lo
make -C SUBDIRS=/usr/src/zaptel-1.2.9.1 clean
make: *** SUBDIRS=/usr/src/zaptel-1.2.9.1: No such file or directory. Stop.
make: *** [clean] Error 2
any help and hints is highly appreciated.