Compilation and Installation

Procedure

Use PuTTY to log in to the server as the root user.
Go to the main program installation directory.
```
cd /path/to/PyFerret
```

Install the base dependencies.

yum -y install cairo*
yum -y install pango-devel pangomm pango-tests pangomm-devel pangomm-doc

Decompress the installation package.
```
tar -zxvf PyFerret-7.6.0.tar.gz
```
Go to the directory generated after the decompression.
```
cd PyFerret-7.6.0
```
Copy the configuration file.
```
cp site_specific.mk.in site_specific.mk
```

Modify the site_specific.mk file:

Open site_specific.mk.
```
vim site_specific.mk
```

Press i to go to the insert mode.

Add the following content to line 10:

HOME=/path/to/PyFerret

Modify the following information:

Before the modification:

DIR_PREFIX = $(HOME)/git/PyFerret
INSTALL_FER_DIR = $(HOME)/PyFerret
BUILDTYPE = x86_64-linux
PYTHON_EXE = python3.6
HDF5_LIBDIR = /usr/local/hdf5/lib
NETCDF_LIBDIR = /usr/local/netcdf/lib

After the modification:

DIR_PREFIX = $(HOME)/PyFerret-7.6.0
INSTALL_FER_DIR = $(HOME)/pyferret
BUILDTYPE = aarch64-linux
PYTHON_EXE = python2.7
HDF5_LIBDIR = /path/to/HDF5/lib
NETCDF_LIBDIR = /path/to/NETCDF/lib

Press Esc, type :wq!, and press Enter to save the changes and exit.

Copy the configuration file.

cp platform_specific.mk.x86_64-linux platform_specific.mk.aarch64-linux

Modify the platform_specific.mk.aarch64-linux file.

sed -i "s/-m64//g" platform_specific.mk.aarch64-linux

Go to the ef_utility directory.
```
cd external_functions/ef_utility/
```
Copy the configuration file.
```
cp site_specific.mk.in site_specific.mk
```
Modify the site_specific.mk file.
1. Open site_specific.mk.
```
vim site_specific.mk
```
2. Press i to enter the insert mode and modify the file as follows:
  Before the modification:
```
BUILDTYPE = x86_64-linux
PYTHON_EXE = python3.6
```
  After the modification:
```
BUILDTYPE = aarch64-linux
PYTHON_EXE = python2.7
```
3. Press Esc, type :wq!, and press Enter to save the changes and exit.

Copy the configuration file.

cp platform_specific.mk.x86_64-linux platform_specific.mk.aarch64-linux

Modify the platform_specific.mk.aarch64-linux file.

sed -i "s/-m64//g" platform_specific.mk.aarch64-linux

Go back to the original directory.
```
cd -
```
Perform the installation.
```
make
make install
```

Parent topic: PyFerret 7.6.0 Porting Guide (CentOS 7.6)