diff --git a/package/mbuffer/0001-globals.c-properly-get-struct-timespec-definition.patch b/package/mbuffer/0001-globals.c-properly-get-struct-timespec-definition.patch
deleted file mode 100644
index fd14a5d759..0000000000
--- a/package/mbuffer/0001-globals.c-properly-get-struct-timespec-definition.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 1fc7ac1e29eb6a0311d2d4c209f55adb92740d50 Mon Sep 17 00:00:00 2001
-From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
-Date: Mon, 13 Apr 2020 09:56:16 +0200
-Subject: [PATCH] globals.c: properly get 'struct timespec' definition
-
-'struct timespec' is defined in <time.h>, and according to man
-nanosleep(2), only available if _POSIX_C_SOURCE >= 199309L.
-
-Fixes:
-
-globals.c:90:2: error: storage size of 'Starttime' isn't known
-  Starttime;
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
----
- globals.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/globals.c b/globals.c
-index 5c10312..1c0ce80 100644
---- a/globals.c
-+++ b/globals.c
-@@ -17,10 +17,11 @@
-  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
-  */
- 
-+#define _POSIX_C_SOURCE 199309L
- #include "dest.h"
- #include "globals.h"
- #include <fcntl.h>
--#include <sys/time.h>
-+#include <time.h>
- 
- dest_t *Dest = 0;
- 
--- 
-2.25.2
-
diff --git a/package/mbuffer/0002-configure.in-set-AC_USE_SYSTEM_EXTENSIONS.patch b/package/mbuffer/0002-configure.in-set-AC_USE_SYSTEM_EXTENSIONS.patch
deleted file mode 100644
index 661586ce02..0000000000
--- a/package/mbuffer/0002-configure.in-set-AC_USE_SYSTEM_EXTENSIONS.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 03db384ff0413d003de271355f59aba8c3f815a1 Mon Sep 17 00:00:00 2001
-From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
-Date: Tue, 21 Apr 2020 14:30:20 +0200
-Subject: [PATCH] configure.in: set AC_USE_SYSTEM_EXTENSIONS
-
-Set AC_USE_SYSTEM_EXTENSIONS so _POSIX_SOURCE will be defined and the
-following build failure will be avoided when building in c89 or c99
-mode:
-
-log.c: In function 'infomsg':
-log.c:123:12: error: 'PIPE_BUF' undeclared (first use in this function)
-   if (s <= PIPE_BUF) {
-            ^~~~~~~~
-
-Fixes:
- - http://autobuild.buildroot.org/results/5f4e9079b3377a869ec7002a8138b80eb6194bbb
-
-Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
-[Upstream status: sent to thomas@maier-komor.de]
----
- configure.in | 1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/configure.in b/configure.in
-index 02921c2..aba4af0 100644
---- a/configure.in
-+++ b/configure.in
-@@ -3,6 +3,7 @@ AC_CONFIG_HEADER(config.h)
- 
- AC_CANONICAL_SYSTEM
- AC_EXEEXT
-+AC_USE_SYSTEM_EXTENSIONS
- 
- PACKAGE=mbuffer
- VERSION=20140310
--- 
-2.25.1
-
diff --git a/package/mbuffer/mbuffer.mk b/package/mbuffer/mbuffer.mk
index 324780fe69..f87b2b114f 100644
--- a/package/mbuffer/mbuffer.mk
+++ b/package/mbuffer/mbuffer.mk
@@ -10,9 +10,6 @@ MBUFFER_SITE = http://www.maier-komor.de/software/mbuffer
 MBUFFER_LICENSE = GPL-3.0+
 MBUFFER_LICENSE_FILES = LICENSE
 MBUFFER_CONF_OPTS = --disable-debug
-MBUFFER_CONF_ENV = CFLAGS="$(TARGET_CFLAGS) -std=c99"
-# We're patching configure.in
-MBUFFER_AUTORECONF = YES
 
 # we don't need tests & co. so we specify a target
 # so that the others don't get built, e.g idev.so