In order to install, in Raspbian terminal you may execute
sudo apt-get install libpthread-stubs0-devSo the system will return
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
libbabeltrace-ctf1 libbabeltrace1 libc6-dbg libdw1 libpython3.5
Use 'sudo apt autoremove' to remove them.
The following NEW packages will be installed:
libpthread-stubs0-dev
0 upgraded, 1 newly installed, 0 to remove and 114 not upgraded.
Need to get 4,042 B of archives.
After this operation, 4,096 B of additional disk space will be used.
Get:1 http://mirror.nbtelecom.com.br/raspberryPI/raspbian stretch/main armhf libpthread-stubs0-dev armhf 0.3-4 [4,042 B]
Fetched 4,042 B in 1s (2,674 B/s)
Selecting previously unselected package libpthread-stubs0-dev:armhf.
(Reading database ... 47839 files and directories currently installed.)
Preparing to unpack .../libpthread-stubs0-dev_0.3-4_armhf.deb ...
Unpacking libpthread-stubs0-dev:armhf (0.3-4) ...
Setting up libpthread-stubs0-dev:armhf (0.3-4) ...
Now that the library is installed, you can already go into pthreads.
To take a look (me)