[erlang-questions] i got "command not found" when make install

[Voaneos]

hi all

i got no error when 'configure',
but error when  make install


make[5]: Leaving directory `/root/backup/otp_src_R12B-5/erts/lib_src'
make[4]: Leaving directory `/root/backup/otp_src_R12B-5/erts/lib_src'
make[3]: Leaving directory `/root/backup/otp_src_R12B-5/erts/lib_src'
make[2]: Leaving directory `/root/backup/otp_src_R12B-5/erts/lib_src'
make[2]: Entering directory `/root/backup/otp_src_R12B-5/erts/start_scripts'
make -w RELEASE_PATH=/usr/local/lib/erlang   release_spec
make[3]: Entering directory `/root/backup/otp_src_R12B-5/erts/start_scripts'
/usr/bin/install -c -d /root/backup/otp_src_R12B-5/erts/start_scripts/tmp
( cd /root/backup/otp_src_R12B-5/erts/start_scripts/tmp && \
        erlc -W   -I/root/backup/otp_src_R12B-5/lib/kernel/ebin
-I/root/backup/otp_src_R12B-5/lib/stdlib/ebin
-I/root/backup/otp_src_R12B-5/lib/sasl/ebin -o
/root/backup/otp_src_R12B-5/erts/start_scripts/start_clean.script
/root/backup/otp_src_R12B-5/erts/start_scripts/start_clean.rel )
/bin/sh: line 1: erlc: command not found
make[3]: ***
[/root/backup/otp_src_R12B-5/erts/start_scripts/start_clean.script] Error
127
make[3]: Leaving directory `/root/backup/otp_src_R12B-5/erts/start_scripts'
make[2]: *** [release] Error 2
make[2]: Leaving directory `/root/backup/otp_src_R12B-5/erts/start_scripts'
make[1]: *** [release] Error 2
make[1]: Leaving directory `/root/backup/otp_src_R12B-5/erts'
make: *** [install.emulator] Error 2
[root@REDACTED otp_src_R12B-5]#



my os

Linux fscbx 2.6.18-53.el5 #1 SMP Mon Nov 12 02:22:48 EST 2007 i686 i686 i386
GNU/Linux
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