There seems to be no reason to include <unistd.h>. <sys/swap.h> already provides both the function prototypes and the SWAP_* constants. Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx> --- man2/swapon.2 | 1 - 1 file changed, 1 deletion(-) diff --git a/man2/swapon.2 b/man2/swapon.2 index cebeb3cdb..07d5fe86c 100644 --- a/man2/swapon.2 +++ b/man2/swapon.2 @@ -44,7 +44,6 @@ swapon, swapoff \- start/stop swapping to file/device .SH SYNOPSIS .nf -.B #include <unistd.h> .B #include <sys/swap.h> .PP .BI "int swapon(const char *" path ", int " swapflags ); -- 2.32.0