I can't install vmailmgr on my RH 7.1 Professional - Box

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I got this Output when I ran the “make” command.   ---- OUTPUT START ---- [root@ns vmailmgr-0.96.9]# ./configure creating cache ./config.cache checking for a BSD compatible install... /usr/bin/install -c checking whether build environment is sane... yes checking whether make sets ${MAKE}... yes checking for working aclocal... found checking for working autoconf... found checking for working automake... found checking for working autoheader... found checking for working makeinfo... found checking whether make sets ${MAKE}... (cached) yes checking for gcc... gcc checking whether the C compiler (gcc� ) works... yes checking whether the C compiler (gcc� ) is a cross-compiler... no checking whether we are using GNU C... yes checking whether gcc accepts -g... yes checking for c++... c++ checking whether the C++ compiler (c++� ) works... yes checking whether the C++ compiler (c++� ) is a cross-compiler... no checking whether we are using GNU C++... yes checking whether c++ accepts -g... yes checking whether c++ accepts -fno-rtti... yes checking whether c++ accepts -fno-exceptions... yes checking for a BSD compatible install... /usr/bin/install -c checking for ranlib... ranlib checking for strip... /usr/bin/strip checking for rm... /bin/rm checking for mkdir... /bin/mkdir checking for ln... /bin/ln checking for python... /usr/bin/python checking Python library path... /usr/lib/python1.5/ checking for w3m... no checking for lynx... /usr/bin/lynx Using lynx to format html pages. checking for crypt in -lcrypt... yes checking for socket in -linet... no checking for socket in -lsocket... no checking for socket in -lxnet... no checking for dirent.h that defines DIR... yes checking for opendir in -ldir... no checking how to run the C preprocessor... gcc -E checking for ANSI C header files... yes checking for sys/wait.h that is POSIX.1 compatible... yes checking whether time.h and sys/time.h may both be included... yes checking for fcntl.h... yes checking for sys/time.h... yes checking for unistd.h... yes checking for shadow.h... yes checking for crypt.h... yes checking for working const... yes checking for uid_t in sys/types.h... yes checking return type of signal handlers... void checking for inline... inline checking for pid_t... yes checking for size_t... yes checking for gethostname... yes checking for gettimeofday... yes checking for mkdir... yes checking for putenv... yes checking for rmdir... yes checking for socket... yes checking for srandom... yes checking for random... yes checking for crypt... yes updating cache ./config.cache creating ./config.status creating Makefile creating cgi/Makefile creating authenticate/Makefile creating commands/Makefile creating daemon/Makefile creating doc/Makefile creating lib/Makefile creating lib/cdb++/Makefile creating lib/cgi/Makefile creating lib/cli/Makefile creating lib/config/Makefile creating lib/courier-authlib/Makefile creating lib/fdbuf/Makefile creating lib/misc/Makefile creating lib/mystring/Makefile creating lib/vdomain/Makefile creating lib/vpwentry/Makefile creating lib/vpwtable/Makefile creating scripts/Makefile creating php/Makefile creating python/Makefile creating config.h   [root@ns vmailmgr-0.96.9]# make make� all-recursive make[1]: Wechsel in das Verzeichnis Verzeichnis �/root/vmailmgr-0.96.9� Making all in python make[2]: Wechsel in das Verzeichnis Verzeichnis �/root/vmailmgr-0.96.9/python� echo "sysconfdir = '/usr/local/etc'" >local.py python -c 'import __init__' python -O -c 'import __init__' python -c 'import constants' python -O -c 'import constants' make[2]: Verlassen des Verzeichnisses Verzeichnis �/root/vmailmgr-0.96.9/python� Making all in php make[2]: Wechsel in das Verzeichnis Verzeichnis �/root/vmailmgr-0.96.9/php� make[2]: F�r das Target �all� gibt es nichts zu tun. make[2]: Verlassen des Verzeichnisses Verzeichnis �/root/vmailmgr-0.96.9/php� Making all in lib make[2]: Wechsel in das Verzeichnis Verzeichnis �/root/vmailmgr-0.96.9/lib� Making all in misc make[3]: Wechsel in das Verzeichnis Verzeichnis �/root/vmailmgr-0.96.9/lib/misc� c++ -DHAVE_CONFIG_H -I. -I. -I../.. -I..��� -g -O2 -fno-rtti -fno-exceptions -Wall -W -c crc32.cc In file included from crc32.cc:1: crc32.h:48:8: warning: extra tokens at end of #endif directive c++ -DHAVE_CONFIG_H -I. -I. -I../.. -I..��� -g -O2 -fno-rtti -fno-exceptions -Wall -W -c exec.cc exec.cc: In function `int presetenv (const char *, const mystring &)': exec.cc:29: `strlen' undeclared (first use this function) exec.cc:29: (Each undeclared identifier is reported only once for each function it appears in.) exec.cc:31: `strcpy' undeclared (first use this function) make[3]: *** [exec.o] Fehler 1 make[3]: Verlassen des Verzeichnisses Verzeichnis �/root/vmailmgr-0.96.9/lib/misc� make[2]: *** [all-recursive] Fehler 1 make[2]: Verlassen des Verzeichnisses Verzeichnis �/root/vmailmgr-0.96.9/lib� make[1]: *** [all-recursive] Fehler 1 make[1]: Verlassen des Verzeichnisses Verzeichnis �/root/vmailmgr-0.96.9� make: *** [all-recursive-am] Fehler 2 [root@ns vmailmgr-0.96.9]#   ---- OUPUT END ----