can‘t install in centos6.2 about mysql HOT 4 OPEN

try to install g++ first.

r - ../obj_g/lib_tracebits.o
r - ../obj_g/lib_tracechr.o
r - ../obj_g/lib_ttyflags.o
r - ../obj_g/lib_twait.o
r - ../obj_g/name_match.o
r - ../obj_g/names.o
r - ../obj_g/read_entry.o
r - ../obj_g/read_termcap.o
r - ../obj_g/setbuf.o
r - ../obj_g/strings.o
r - ../obj_g/trace_buf.o
r - ../obj_g/trace_tries.o
r - ../obj_g/tries.o
r - ../obj_g/trim_sgr0.o
r - ../obj_g/unctrl.o
r - ../obj_g/visbuf.o
r - ../obj_g/alloc_entry.o
r - ../obj_g/captoinfo.o
r - ../obj_g/comp_captab.o
r - ../obj_g/comp_expand.o
r - ../obj_g/comp_hash.o
r - ../obj_g/comp_parse.o
r - ../obj_g/comp_scan.o
r - ../obj_g/parse_entry.o
r - ../obj_g/write_entry.o
r - ../obj_g/define_key.o
r - ../obj_g/hashed_db.o
r - ../obj_g/key_defined.o
r - ../obj_g/keybound.o
r - ../obj_g/keyok.o
r - ../obj_g/version.o
/usr/bin/ld: cannot find -lrt
collect2: ld returned 1 exit status
make[2]: *** [tic] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [all] Error 2
make: *** [all-recursive] Error 1
*** Exit on error
Duration: 496 seconds

also ERROR : /usr/bin/ld: cannot find -lrt

toeoso, do you have librt?

libtool: link: gcc -std=gnu99 -Wall -Wextra -Wunused -Wwrite-strings 
-Wno-strict-aliasing -Werror -g -DSAFE_MUTEX -g3 -O0 -fno-omit-frame-pointer 
-I/media/google-mysql/ncurses/include -I/media/google-mysql/ncurses/include 
-DHAVE_TERM_H -DUNIV_LINUX -DUNIV_LINUX -rdynamic -o strings-t strings-t.o  
-lrt ../../unittest/mytap/libmytap.a ../../mysys/libmysys.a 
../../dbug/libdbug.a ../../strings/libmystrings.a -lpthread -lcrypt -lnsl -lm 
-lpthread
Making all in vio
Making all in sql
../ylwrap: line 109: -d: command not found
make[1]: *** [sql_yacc.cc] Error 1
make[1]: *** Waiting for unfinished jobs....
libtool: link: g++ -Wall -Wextra -Wunused -Wwrite-strings -Wno-strict-aliasing 
-Werror -Wno-unused-parameter -g -DSAFE_MUTEX -g3 -O0 -fno-omit-frame-pointer 
-I/media/google-mysql/ncurses/include -I/media/google-mysql/ncurses/include 
-DHAVE_TERM_H -fno-rtti -rdynamic -o gen_lex_hash gen_lex_hash.o  
../vio/libvio.a ../mysys/libmysys.a ../dbug/libdbug.a ../regex/libregex.a 
../strings/libmystrings.a ../zlib/.libs/libzlt.a 
-L/media/google-mysql/google-perftools 
/media/google-mysql/google-perftools/.libs/libtcmalloc.a -lpthread -lrt 
-lpthread -lpthread -lcrypt -lnsl -lm -lpthread
make: *** [all-recursive] Error 1
*** Exit on error
Duration: 141 seconds


 $cat /etc/redhat-release 
CentOS release 6.4 (Final)
 $uname -a
Linux nd0302012916 2.6.32-358.11.1.el6.x86_64 #1 SMP Wed Jun 12 03:34:52 UTC 
2013 x86_64 x86_64 x86_64 GNU/Linux


$cd sql
$make
/bin/sh ../ylwrap sql_yacc.yy y.tab.c sql_yacc.cc y.tab.h sql_yacc.h y.output 
sql_yacc.output --   -d --verbose
../ylwrap: line 109: -d: command not found
make: *** [sql_yacc.cc] Error 1


plz help me