clang -O2  -Wall -Wextra -Werror=implicit-function-declaration termios/tcgetsid.c -o termios/tcgetsid -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE  -lm  -lintl
../out/minix/basic/termios/tcgetsid.o: In function `main':
termios/tcgetsid.c:(.text+0x451): undefined reference to `tcgetsid'
clang: error: linker command failed with exit code 1 (use -v to see invocation)