diff --git a/CHANGES b/CHANGES
index 7801067..10e3ed1 100644
--- a/CHANGES
+++ b/CHANGES
@@ -18,6 +18,7 @@
   add lose32 support (broken, please don't use!)
   head -1 -> head -n 1
   apending 0 bytes to an empty array would fail it
+  remove socket_sendfile now that we have io_sendfile
 
 0.16:
   add buffer_fromsa (make buffer from stralloc)
diff --git a/GNUmakefile b/GNUmakefile
index 17105ac..b5a4b66 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -242,7 +242,7 @@ socket_remote6.o: havesl.h
 fmt_xlong.o scan_xlong.o fmt_ip6_flat.o $(TEXTCODE_OBJS): haveinline.h
 
 dep: haveip6.h haven2i.h havesl.h haveinline.h iopause.h select.h haveepoll.h havekqueue.h havedevpoll.h
-	gcc -I. -MM $(wildcard */*.c) t.c > dep
+	gcc -I. -MM */*.c t.c > dep
 
 libdep:
 	for i in $(LIBS); do (echo -n $$i|tr a-z A-Z|sed 's/.A$$/_OBJS=/'; echo $${i%.a}/*.c|sed -e 's@[^/]*/\([^.]*\)\.c@\1.o @g'); done > libdep
diff --git a/socket.h b/socket.h
index 228407d..40063da 100644
--- a/socket.h
+++ b/socket.h
@@ -51,8 +51,6 @@ void socket_tryreservein(int s,int size);
 const char* socket_getifname(uint32 _interface);
 uint32 socket_getifidx(const char* ifname);
 
-int socket_sendfile(int out,int in,uint32 offset,uint32 bytes);
-
 int noipv6;
 
 #ifdef __MINGW32__
diff --git a/socket/socket_sendfile.3 b/socket/socket_sendfile.3
deleted file mode 100644
index 7413a04..0000000
--- a/socket/socket_sendfile.3
+++ /dev/null
@@ -1,35 +0,0 @@
-.TH socket_sendfile 3
-.SH NAME
-socket_sendfile \- send a file over a TCP socket
-.SH SYNTAX
-.B #include <socket.h>
-
-int \fBsocket_sendfile\fP(int \fIout\fR, int \fIin\fR, uint32 \fIoffset\fR,
-                    uint32 \fIbytes\fR);
-.SH DESCRIPTION
-socket_sendfile sends \fIbytes\fR bytes starting at \fIoffset\fR in the
-file \fIin\fR to the socket connected to file descriptor \fIout\fR.
-
-The socket must be connected.
-
-Note that the underlying sendfile system call is system specific and
-currently only implemented on Linux.  On other operating systems, it is
-emulated with a read/write loop.
-.SH RETURN VALUE
-socket_sendfile returns 0 if the data was sent successfully.  If not,
-it returns -1 and sets errno appropriately.
-.SH EXAMPLE
-  #include <socket.h>
-  #include <open.h>
-
-  int \fIs\fR;
-  char \fIip\fR[4];
-  uint16 \fIp\fR;
-  int \fIfd\fR = open_read("/etc/passwd");
-
-  \fIs\fR = socket_tcp4();
-  socket_connect4(s,ip,p);
-  socket_sendfile(s,fd,0,23);
-
-.SH "SEE ALSO"
-socket_send6(3)
diff --git a/socket/socket_sendfile.c b/socket/socket_sendfile.c
deleted file mode 100644
index 80308bf..0000000
--- a/socket/socket_sendfile.c
+++ /dev/null
@@ -1,60 +0,0 @@
-#include <unistd.h>
-#include "socket.h"
-
-#ifdef __linux__
-
-#ifdef __GLIBC__
-#include <sys/sendfile.h>
-#else
-#ifdef __dietlibc__
-#include <sys/sendfile.h>
-#else
-#include <linux/unistd.h>
-_syscall4(int,sendfile,int,out,int,in,long *,offset,unsigned long,count)
-#endif
-#endif
-
-int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
-  off_t tmp=offset;
-  return sendfile(out,in,&tmp,bytes);
-}
-
-#else
-
-#ifdef _HPUX_SOURCE
-
-/* http://www.devresource.hp.com/STK/man/10.30/sendfile_2.html */
-#include <sys/socket.h>
-int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
-  return sendfile(out,in,offset,bytes,0,0);
-}
-
-#else
-
-#define BUFSIZE 16384
-
-int socket_sendfile(int out,int in,uint32 offset,uint32 bytes) {
-  char buf[BUFSIZE];
-  int n,m;
-  uint32 sent=0;
-  if (lseek(in,offset,SEEK_SET) != offset)
-    return -1;
-  while (bytes>0) {
-    char* tmp=buf;
-    if ((n=read(in,tmp,(bytes<BUFSIZE)?bytes:BUFSIZE))<=0)
-      return (sent?sent:-1);
-    while (n>0) {
-      if ((m=write(out,tmp,n))<0)
-	goto abort;
-      sent+=m;
-      n-=m;
-      tmp+=m;
-    }
-  }
-abort:
-  return sent;
-}
-
-#endif
-
-#endif