diff --git a/audio/out/ao_oss.c b/audio/out/ao_oss.c
index aee4357075..1478d1400e 100644
--- a/audio/out/ao_oss.c
+++ b/audio/out/ao_oss.c
@@ -42,13 +42,7 @@
 #include "osdep/timer.h"
 #include "osdep/endian.h"
 
-#if HAVE_SYS_SOUNDCARD_H
 #include <sys/soundcard.h>
-#else
-#if HAVE_SOUNDCARD_H
-#include <soundcard.h>
-#endif
-#endif
 
 #include "audio/format.h"
 
@@ -60,6 +54,9 @@
 // Define to 1 if SNDCTL_DSP_RESET should be used to reset without close.
 #define KEEP_DEVICE (defined(SNDCTL_DSP_RESET) && !defined(__NetBSD__))
 
+#define PATH_DEV_DSP "/dev/dsp"
+#define PATH_DEV_MIXER "/dev/mixer"
+
 struct priv {
     int audio_fd;
     int prepause_samples;
diff --git a/stream/ai_oss.c b/stream/ai_oss.c
index d1ef701e6e..bc22691be5 100644
--- a/stream/ai_oss.c
+++ b/stream/ai_oss.c
@@ -25,15 +25,7 @@
 #include <errno.h>
 #include <sys/ioctl.h>
 
-#if HAVE_SYS_SOUNDCARD_H
 #include <sys/soundcard.h>
-#else
-#if HAVE_SOUNDCARD_H
-#include <soundcard.h>
-#else
-#include <linux/soundcard.h>
-#endif
-#endif
 
 #include "osdep/io.h"
 
diff --git a/waftools/checks/custom.py b/waftools/checks/custom.py
index a2b4971cd2..c7dbdf4e94 100644
--- a/waftools/checks/custom.py
+++ b/waftools/checks/custom.py
@@ -3,7 +3,7 @@ from waftools.checks.generic import *
 from waflib import Utils
 import os
 
-__all__ = ["check_pthreads", "check_iconv", "check_lua", "check_oss_4front",
+__all__ = ["check_pthreads", "check_iconv", "check_lua",
            "check_cocoa", "check_openal", "check_rpi"]
 
 pthreads_program = load_fragment('pthreads.c')
@@ -83,32 +83,6 @@ def check_lua(ctx, dependency_identifier):
             return True
     return False
 
-def __get_osslibdir():
-    cmd = ['sh', '-c', '. /etc/oss.conf && echo $OSSLIBDIR']
-    p = Utils.subprocess.Popen(cmd, stdin=Utils.subprocess.PIPE,
-                                    stdout=Utils.subprocess.PIPE,
-                                    stderr=Utils.subprocess.PIPE)
-    return p.communicate()[0].decode().rstrip()
-
-def check_oss_4front(ctx, dependency_identifier):
-    oss_libdir = __get_osslibdir()
-
-    # avoid false positive from native sys/soundcard.h
-    if not oss_libdir:
-        ctx.undefine(inflector.define_key(dependency_identifier))
-        return False
-
-    soundcard_h = os.path.join(oss_libdir, "include/sys/soundcard.h")
-    include_dir = os.path.join(oss_libdir, "include")
-
-    fn = check_cc(header_name=soundcard_h,
-                  defines=['PATH_DEV_DSP="/dev/dsp"',
-                           'PATH_DEV_MIXER="/dev/mixer"'],
-                  cflags='-I{0}'.format(include_dir),
-                  fragment=load_fragment('oss_audio.c'))
-
-    return fn(ctx, dependency_identifier)
-
 def check_cocoa(ctx, dependency_identifier):
     fn = check_cc(
         fragment         = load_fragment('cocoa.m'),
diff --git a/waftools/fragments/oss_audio.c b/waftools/fragments/oss_audio.c
deleted file mode 100644
index c1a5488f97..0000000000
--- a/waftools/fragments/oss_audio.c
+++ /dev/null
@@ -1,5 +0,0 @@
-#include <sys/soundcard.h>
-
-int main(int argc, char **argv) {
-    return SNDCTL_DSP_SETFRAGMENT;
-}
diff --git a/waftools/fragments/oss_audio_sunaudio.c b/waftools/fragments/oss_audio_sunaudio.c
deleted file mode 100644
index d5208f558c..0000000000
--- a/waftools/fragments/oss_audio_sunaudio.c
+++ /dev/null
@@ -1,6 +0,0 @@
-#include <soundcard.h>
-
-int main(int argc, char **argv) {
-    return SNDCTL_DSP_SETFRAGMENT;
-}
-
diff --git a/wscript b/wscript
index 7a4ef0d4c9..5390596f8e 100644
--- a/wscript
+++ b/wscript
@@ -470,36 +470,11 @@ audio_output_features = [
         'deps_neg': [ 'sdl2' ],
         'func': check_pkg_config('sdl'),
         'default': 'disable'
-    }, {
-        'name': 'oss-audio-4front',
-        'desc': 'OSS (implementation from opensound.com)',
-        'func': check_oss_4front,
-        'groups' : [ 'oss-audio' ]
-    }, {
-        'name': 'oss-audio-native',
-        'desc': 'OSS (platform-specific OSS implementation)',
-        'func': check_cc(header_name='sys/soundcard.h',
-                         defines=['PATH_DEV_DSP="/dev/dsp"',
-                                  'PATH_DEV_MIXER="/dev/mixer"'],
-                         fragment=load_fragment('oss_audio.c')),
-        'deps_neg': [ 'oss-audio-4front' ],
-        'groups' : [ 'oss-audio' ]
-    }, {
-        'name': 'oss-audio-sunaudio',
-        'desc': 'OSS (emulation on top of SunAudio)',
-        'func': check_cc(header_name='soundcard.h',
-                         lib='ossaudio',
-                         defines=['PATH_DEV_DSP="/dev/sound"',
-                                  'PATH_DEV_MIXER="/dev/mixer"'],
-                         fragment=load_fragment('oss_audio_sunaudio.c')),
-        'deps_neg': [ 'oss-audio-4front', 'oss-audio-native' ],
-        'groups' : [ 'oss-audio' ]
     }, {
         'name': '--oss-audio',
-        'desc': 'OSS audio output',
-        'func': check_true,
-        'deps_any': [ 'oss-audio-native', 'oss-audio-sunaudio',
-                      'oss-audio-4front' ]
+        'desc': 'OSS',
+        'func': check_cc(header_name='sys/soundcard.h'),
+        'deps': [ 'posix' ],
     }, {
         'name': '--rsound',
         'desc': 'RSound audio output',
@@ -1007,14 +982,6 @@ def configure(ctx):
 
     ctx.parse_dependencies(standalone_features)
 
-    ctx.define('HAVE_SYS_SOUNDCARD_H',
-               '(HAVE_OSS_AUDIO_NATIVE || HAVE_OSS_AUDIO_4FRONT)',
-               quote=False)
-
-    ctx.define('HAVE_SOUNDCARD_H',
-               'HAVE_OSS_AUDIO_SUNAUDIO',
-               quote=False)
-
     ctx.load('generators.headers')
 
     if not ctx.dependency_satisfied('build-date'):