** I originally posted this on Linux newbie, since well I am a Linux newbie. But I am not sure if it should be posted here. Anyway, here is is...

** Ok, so first I went and downloaded
chrony-1.23.tar.gz

** Then I typed the command
tar -zxvf chrony-1.23.tar.gz

** Then went into the directory chrony-1.23/ and typed the command
./configure --prefix=/usr/local

** Then I typed the command
make
** and this is what was echoed back:
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c util.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c sched.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c regress.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c local.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c sys.c
./mkversion
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c main.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c ntp_io.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c ntp_core.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c ntp_sources.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c sources.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c sourcestats.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c reference.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c logging.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c conf.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c cmdmon.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c md5.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c keys.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c nameserv.c
nameserv.c: In function ‘DNS_Name2IPAddress’:
nameserv.c:49: warning: pointer targets in assignment differ in signedness
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c acquire.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c manual.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c addrfilt.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c cmdparse.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c mkdirpp.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c rtc.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c pktlength.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c clientlog.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c broadcast.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c sys_linux.c
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -c wrap_adjtimex.c
gcc -O2 -g -o chronyd util.o sched.o regress.o local.o sys.o main.o ntp_io.o ntp_core.o ntp_sources.o sources.o sourcestats.o reference.o logging.o conf.o cmdmon.o md5.o keys.o nameserv.o acquire.o manual.o addrfilt.o cmdparse.o mkdirpp.o rtc.o pktlength.o clientlog.o broadcast.o sys_linux.o wrap_adjtimex.o -lm
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -DFEAT_READLINE=1 -c client.c
client.c:44:31: error: readline/readline.h: No such file or directory
client.c:45:30: error: readline/history.h: No such file or directory
client.c: In function ‘read_line’:
client.c:117: warning: implicit declaration of function ‘readline’
client.c:117: warning: assignment makes pointer from integer without a cast
client.c:124: warning: implicit declaration of function ‘add_history’
make: *** [client.o] Error 1

** Then I typed
make
** again and this is what was echoed back:
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -DFEAT_READLINE=1 -c client.c
client.c:44:31: error: readline/readline.h: No such file or directory
client.c:45:30: error: readline/history.h: No such file or directory
client.c: In function ‘read_line’:
client.c:117: warning: implicit declaration of function ‘readline’
client.c:117: warning: assignment makes pointer from integer without a cast
client.c:124: warning: implicit declaration of function ‘add_history’
make: *** [client.o] Error 1

** Then I typed
sudo make install
** and this is what I got back:
gcc -Wmissing-prototypes -Wall -O2 -g -DLINUX -DHAS_STDINT_H -DHAS_INTTYPES_H -DFEAT_READLINE=1 -c client.c
client.c:44:31: error: readline/readline.h: No such file or directory
client.c:45:30: error: readline/history.h: No such file or directory
client.c: In function ‘read_line’:
client.c:117: warning: implicit declaration of function ‘readline’
client.c:117: warning: assignment makes pointer from integer without a cast
client.c:124: warning: implicit declaration of function ‘add_history’
make: *** [client.o] Error 1

** I am pretty sure that something did not go right with the installation. Can anyone please help. Thanks