Need help about apache 2.4.46 configuration on rhel 7.2!!! (HTTPD_ROOT)

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The first time I installed apache 2.4.46 from source downloaded on the Internet , I just run "./configure && make && make install", so the default directories for this are :
ServerRoot :: /usr/local/apache2
DocumentRoot :: /usr/local/apache2/htdocs

However, my team-lead need to install with "ServerRoot=/etc/httpd" and "DocumentRoot=/var/www/html'
Thus, I remove /usr/local/apace2 folder and reinstall with command
"./configure --prefix=/etc/httpd --docdir=/var/www/html" and then, make && make install.
The problem is when I start apache, it has an error that "httpd: Could not open configuration file /usr/local/apache2/conf/httpd.conf: No such file or directory".

I then run "/etc/httpd/bin/apachectl -V" command and found out that the HTTP_ROOT is still associtated with /usr/local/apache.
[root@localhost ~]# /etc/httpd/bin/apachectl -V
-D HTTPD_ROOT="/usr/local/apache2"
-D SUEXEC_BIN="/usr/local/apache2/bin/suexec"
-D DEFAULT_PIDLOG="logs/httpd.pid"
-D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
-D DEFAULT_ERRORLOG="logs/error_log"
-D AP_TYPES_CONFIG_FILE="conf/mime.types"
-D SERVER_CONFIG_FILE="conf/httpd.conf"

Hence, my question is, how can I change this PATH for HTTPD_ROOT like this "HTTPD_ROOT=/etc/httpd".?
Thanks a lot for all your support, guys and I'll appreciate it

TN

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