Installing HTSlib

Use PuTTY to log in to the server as the root user.
Run the following command to go to the HTSlib installation directory:
```
cd /path/to/HTSLIB
```
Run the following command to decompress the HTSlib installation package:
```
tar -xvf htslib-1.9.tar.bz2
```
Run the following command to switch to the directory generated after the package is decompressed:
```
cd htslib-1.9
```
Modify the Makefile file.
1. Open Makefile.
```
vi Makefile
```
2. Press i to enter the insert mode and modify the file as follows:
  Before the modification:
```
CC     = gcc 
```
  After the modification:
```
CC     = /path/to/GNU/bin/gcc 
```
3. Press Esc, type :wq!, and press Enter to save the file and exit.
Run the following command to perform compilation and installation:
```
make
```
Run the following command to copy the generated file to the default path of the root directory so that Cufflinks can directly identify the HTSlib files:
```
cp /path/to/HTSLIB/htslib-1.9/libhts.* /usr/local/lib
```

Parent topic: Configuring the Compilation Environment