Here we compile apache with ssl module on RHEL 8.

1. Install gcc if it's not there

    # dnf install gcc

    # dnf groupinstall "Development Tools"

2. Download and build pcre, expat, apr, apr-util

   # ./configure --prefix=/opt/apache/srclib/pcre; make; make install

3. Without openssl-devel, it would complain openssl is too old if we compile with ssl module

   # yum install openssl-devel

4. Download httpd-2.4.53.tar.gz

5. Extract the source and compile with ssl module:

    # export CFLAGS=”-m64″

    # ./configure --prefix=/opt/apache --with-apr=/opt/apache/srclib/apr \

      --with-apr-util=/opt/apache/srclib/apr-util \

      --with-pcre=/opt/apache/srclib/pcre/bin/pcre2-config \

      --enable-ssl --enable-so

6. Generate self-signed SSL cert

    # mkdir /opt/apache/ssl; cd /opt/apache/ssl

    # openssl genrsa -out domain.key 2048

    # openssl req -key domain.key -new -x509 -days 365 -out domain.crt

7.  Update /opt/apache/conf/httpd.conf and ssl.conf

8. Start apache

    # /opt/apache/bin/apachectl -k start