源码下载地址：
https://www.openssl.org/source/openssl-1.1.1w.tar.gz
参考之前的文章：
openssl 1.1.1L /1.1.1o/1.1.1t rpm包制作——筑梦之路_openssl的rpm包_筑梦之路的博客-CSDN博客
直接上spec文件：
Name: openssl
Version: 1.1.1w
Release: 1%{?dist}
Summary: Utilities from the general purpose cryptography library with TLS implementation
Group: System Environment/Libraries
License: OpenSSL
URL: http://www.openssl.org/
Source0: openssl-%{version}.tar.gz
BuildRequires: make, gcc, coreutils, krb5-devel, perl, sed, zlib-devel, perl-WWW-Curl
Requires: coreutils, make
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
%global openssldir /usr/openssl
%description
The OpenSSL toolkit provides support for secure communications between
machines. OpenSSL includes a certificate management tool and shared
libraries which provide various cryptographic algorithms and
protocols.
%package devel
Summary: Development files for programs which will use the openssl library
Group: Development/Libraries
Requires: %{name} = %{version}-%{release}
%description devel
OpenSSL RPM for version 1.1.1w on Centos (development package)
%prep
%setup -q
%build
./config --prefix=%{openssldir} --openssldir=%{openssldir} shared -fPIC
make
%install
[ "%{buildroot}" != "/" ] && %{__rm} -rf %{buildroot}
%make_install
mkdir -p %{buildroot}%{_bindir}
mkdir -p %{buildroot}%{_libdir}
ln -sf %{openssldir}/lib/libssl.so.1.1 %{buildroot}%{_libdir}
ln -sf %{openssldir}/lib/libcrypto.so.1.1 %{buildroot}%{_libdir}
ln -sf %{openssldir}/bin/openssl %{buildroot}%{_bindir}
%clean
[ "%{buildroot}" != "/" ] && %{__rm} -rf %{buildroot}
%files
%{openssldir}
%defattr(-,root,root)
/usr/bin/openssl
/usr/lib64/libcrypto.so.1.1
/usr/lib64/libssl.so.1.1
%files devel
%{openssldir}/include/*
%defattr(-,root,root)
%post -p /sbin/ldconfig
%postun -p /sbin/ldconfig安装完成的效果：
