Generating a Compression Algorithm RPM Package

This document uses glz-1.0.0 as an example to describe how to generate a compression algorithm RPM package.

1. Install rpmbuild.

   1 2	yum install rpmdevtools -y rpmdev-setuptree

   If you perform the compilation as the root user, an rpmbuild directory is generated in the /root directory. The compilation will occupy 20 GB to 30 GB. If the /root directory has a smaller space, you can move rpmbuild to another directory, for example, /home.

   1. Modify the .rpmmacros file after running the rpmbuild command.
      1. Open the /root/.rpmmacros file.

         1	vi /root/.rpmmacros

      2. Press i to enter the insert mode and change %_topdir to /home/rpmbuild.
         Figure 1 Changing %_topdir to /home/rpmbuild
         
      3. Press Esc to exit the insert mode. Type :wq! and press Enter to save the file and exit.
   2. Run the rpmbuild installation command again.

      1	rpmdev-setuptree

2. Copy the algorithm dynamic library.

   Copy the compression algorithm dynamic library to /home/rpmbuild/BUILD/.

   1 2	mkdir -p /home/rpmbuild/BUILD/glz-1.0.0 cp /usr/lib64/libglz.so /home/rpmbuild/BUILD/glz-1.0.0/

3. Edit the glz.spec file.
   1. Open the /home/rpmbuild/SPECS/glz.spec file.

      1	vi /home/rpmbuild/SPECS/glz.spec

   2. Press i to enter the insert mode and edit the SPEC file as follows:

      1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

      # os_type %{!?os_type: %define os_type centos} Name: glz Version: 1.0.0 Release: centos Summary: glz compress License: Commercial %description %install mkdir -p %{buildroot}/usr/lib64 cp %{_builddir}/%{name}-%{version}/*.so %{buildroot}/usr/lib64/ %files %{_libdir}/*.so

   3. Press Esc to exit the insert mode. Type :wq! and press Enter to save the file and exit.
4. Build an RPM package.

   1	rpmbuild -bb /home/rpmbuild/SPECS/glz.spec

   The generated RPM package is stored in /home/rpmbuild/RPMS/aarch64/.