Document it.

src/lib/libc/stdlib/Makefile.inc

@@ -1,4 +1,4 @@
-#	$OpenBSD: Makefile.inc,v 1.3 1996/08/10 04:18:48 tholo Exp $
+#	$OpenBSD: Makefile.inc,v 1.4 1996/08/21 03:12:17 downsj Exp $
 
 # stdlib sources
 .PATH: ${.CURDIR}/arch/${MACHINE_ARCH}/stdlib ${.CURDIR}/stdlib
@@ -37,7 +37,7 @@ MAN+=	abort.3 abs.3 alloca.3 atexit.3 atof.3 atoi.3 atol.3 bsearch.3 \
 	random.3 realpath.3 strtod.3 strtol.3 strtoul.3 system.3
 
 MLINKS+=getenv.3 setenv.3 getenv.3 unsetenv.3 getenv.3 putenv.3
-MLINKS+=malloc.3 free.3 malloc.3 realloc.3
+MLINKS+=malloc.3 free.3 malloc.3 realloc.3 cfree.3
 MLINKS+=qsort.3 heapsort.3 qsort.3 mergesort.3
 MLINKS+=rand.3 srand.3
 MLINKS+=random.3 initstate.3 random.3 setstate.3 random.3 srandom.3

src/lib/libc/stdlib/malloc.3

@@ -33,7 +33,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: malloc.3,v 1.2 1996/08/10 04:18:49 tholo Exp $
+.\"	$OpenBSD: malloc.3,v 1.3 1996/08/21 03:12:18 downsj Exp $
 .\"
 .Dd June 4, 1993
 .Dt MALLOC 3
@@ -42,7 +42,8 @@
 .Nm malloc ,
 .Nd general memory allocation function
 .Pp
-.Nm free
+.Nm free ,
+.Nm cfree
 .Nd free up memory allocated with malloc, calloc or realloc
 .Pp
 .Nm realloc
@@ -53,6 +54,8 @@
 .Fn malloc "size_t size"
 .Ft void
 .Fn free "void *ptr"
+.Ft void
+.Fn cfree "void *ptr"
 .Ft void *
 .Fn realloc "void *ptr" "size_t size"
 .Sh DESCRIPTION
@@ -83,6 +86,13 @@ If
 .Fa ptr
 is a null pointer, no action occurs.
 .Pp
+A
+.Fn cfree
+function is also provided for compatibility with old systems and other
+.Nm malloc
+libraries; it is simply an alias for
+.Fn free .
+.Pp
 The
 .Fn realloc
 function changes the size of the object pointed to by