Which C compiler is used in the practice projects?

Programming languages C
#1

I was wondering which C compiler/libraries are used in the project, because either there’s a bug in “strdup” or the documentation I’m looking at for strdup is for a different flavor of the library.

#2

gcc 7.2.0 mode C11
With the following libraries ‑lm, ‑lpthread, ‑ldl, ‑lcrypt

see the FAQ.

#3

Thanks for your help!