openGauss Setting up the Compilation Environment
Hardware Requirements
Hardware requirements for compiling the openGauss are as follows:
Number of servers: 1
Hardware specifications:
CPU: 4U (64-bit)
Memory: 8 GB
Free disk space: 100 GB
Software Requirements
OS Requirements
The following OSs (Linux 64-bit) are supported:
CentOS 7.6 (x86_64 architecture)
openEuler-20.03-LTS (aarch64 architecture)
openEuler-20.03-LTS (x86_64 architecture)
Kylin-V10 (aarch64 architecture)
Asianux 7.6 (x86_64 architecture)
Asianux 7.5 (aarch64 architecture)
FusionOS 22 (aarch64 architecture)
FusionOS 22 (x86 architecture)
Software Dependency Requirements
Table Software dependency requirements lists the software requirements for compiling the openGauss.
You are advised to use the default installation packages of the following dependent software in the listed OS installation CD-ROMs or sources. If the following software does not exist, refer to the recommended versions of the software.
Table 1 Software dependency requirements
| Software | Recommended Version |
| libaio-devel | 0.3.109-13 |
| flex | 2.5.31 or later |
| bison | 2.7-4 |
| ncurses-devel | 5.9-13.20130511 |
| glibc-devel | 2.17-111 |
| patch | 2.7.1-10 |
| redhat-lsb_core | 4.1 |
Configuring Environment Variables
The environment variable configuration for compiling the openGauss has been written into the one-click compilation and packaging script. Therefore, you do not need to configure the environment variables.
If you do not want to use the one-click compilation script, you need to manually configure environment variables. For details, see Software Compilation and Installation.