memmem: add a note about other systems which have memmem

memmem started as a GNU extension but is now widely available.

Reviewed by:	mhorne (slightly earlier version)
Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D39337
This commit is contained in:
Ed Maste 2023-03-29 21:03:27 -04:00
parent e37edc91b6
commit 30da840c62

View File

@ -26,7 +26,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd March 17, 2017
.Dd March 30, 2023
.Dt MEMMEM 3
.Os
.Sh NAME
@ -71,7 +71,8 @@ is returned.
.Xr strstr 3
.Sh CONFORMING TO
.Fn memmem
is a GNU extension.
started as a GNU extension but is now available in at least
the GNU, musl, bionic, OpenBSD, NetBSD, macOS, and Illumos C runtime libraries.
.Sh HISTORY
The
.Fn memmem