diff --git a/media/ffvpx/config.asm b/media/ffvpx/config.asm
--- media/ffvpx/config.asm
+++ media/ffvpx/config.asm
@@ -192,7 +192,6 @@
 %define HAVE_MACH_MACH_TIME_H 0
 %define HAVE_MACHINE_IOCTL_BT848_H 0
 %define HAVE_MACHINE_IOCTL_METEOR_H 0
-%define HAVE_MALLOC_H 1
 %define HAVE_OPENJPEG_1_5_OPENJPEG_H 0
 %define HAVE_OPENGL_GL3_H 0
 %define HAVE_POLL_H 1
@@ -268,18 +267,15 @@
 %define HAVE_ISATTY 1
 %define HAVE_JACK_PORT_GET_LATENCY_RANGE 0
 %define HAVE_KBHIT 0
-%define HAVE_LOCALTIME_R 1
 %define HAVE_LSTAT 1
 %define HAVE_LZO1X_999_COMPRESS 0
 %define HAVE_MACH_ABSOLUTE_TIME 0
 %define HAVE_MAPVIEWOFFILE 0
-%define HAVE_MEMALIGN 1
 %define HAVE_MKSTEMP 1
 %define HAVE_MMAP 1
 %define HAVE_MPROTECT 1
 %define HAVE_NANOSLEEP 1
 %define HAVE_PEEKNAMEDPIPE 0
-%define HAVE_POSIX_MEMALIGN 1
 %define HAVE_PTHREAD_CANCEL 1
 %define HAVE_SCHED_GETAFFINITY 1
 %define HAVE_SETCONSOLETEXTATTRIBUTE 0
diff --git a/media/ffvpx/config_unix32.h b/media/ffvpx/config_unix32.h
--- media/ffvpx/config_unix32.h
+++ media/ffvpx/config_unix32.h
@@ -216,7 +216,6 @@
 #define HAVE_MACH_MACH_TIME_H 0
 #define HAVE_MACHINE_IOCTL_BT848_H 0
 #define HAVE_MACHINE_IOCTL_METEOR_H 0
-#define HAVE_MALLOC_H 1
 #define HAVE_OPENJPEG_2_1_OPENJPEG_H 0
 #define HAVE_OPENJPEG_2_0_OPENJPEG_H 0
 #define HAVE_OPENJPEG_1_5_OPENJPEG_H 0
@@ -269,7 +268,6 @@
 #define HAVE_TRUNCF 1
 #define HAVE_ACCESS 1
 #define HAVE_ALIGNED_MALLOC 0
-#define HAVE_ARC4RANDOM 0
 #define HAVE_CLOCK_GETTIME 1
 #define HAVE_CLOSESOCKET 0
 #define HAVE_COMMANDLINETOARGVW 0
@@ -295,18 +293,15 @@
 #define HAVE_ISATTY 1
 #define HAVE_JACK_PORT_GET_LATENCY_RANGE 0
 #define HAVE_KBHIT 0
-#define HAVE_LOCALTIME_R 1
 #define HAVE_LSTAT 1
 #define HAVE_LZO1X_999_COMPRESS 0
 #define HAVE_MACH_ABSOLUTE_TIME 0
 #define HAVE_MAPVIEWOFFILE 0
-#define HAVE_MEMALIGN 0
 #define HAVE_MKSTEMP 1
 #define HAVE_MMAP 1
 #define HAVE_MPROTECT 1
 #define HAVE_NANOSLEEP 1
 #define HAVE_PEEKNAMEDPIPE 0
-#define HAVE_POSIX_MEMALIGN 0
 #define HAVE_PTHREAD_CANCEL 1
 #define HAVE_SCHED_GETAFFINITY 1
 #define HAVE_SETCONSOLETEXTATTRIBUTE 0
diff --git a/media/ffvpx/config_unix64.asm b/media/ffvpx/config_unix64.asm
--- media/ffvpx/config_unix64.asm
+++ media/ffvpx/config_unix64.asm
@@ -200,7 +200,6 @@
 %define HAVE_MACH_MACH_TIME_H 0
 %define HAVE_MACHINE_IOCTL_BT848_H 0
 %define HAVE_MACHINE_IOCTL_METEOR_H 0
-%define HAVE_MALLOC_H 1
 %define HAVE_OPENJPEG_2_1_OPENJPEG_H 0
 %define HAVE_OPENJPEG_2_0_OPENJPEG_H 0
 %define HAVE_OPENJPEG_1_5_OPENJPEG_H 0
@@ -253,7 +252,6 @@
 %define HAVE_TRUNCF 1
 %define HAVE_ACCESS 1
 %define HAVE_ALIGNED_MALLOC 0
-%define HAVE_ARC4RANDOM 0
 %define HAVE_CLOCK_GETTIME 1
 %define HAVE_CLOSESOCKET 0
 %define HAVE_COMMANDLINETOARGVW 0
@@ -279,18 +277,15 @@
 %define HAVE_ISATTY 1
 %define HAVE_JACK_PORT_GET_LATENCY_RANGE 0
 %define HAVE_KBHIT 0
-%define HAVE_LOCALTIME_R 1
 %define HAVE_LSTAT 1
 %define HAVE_LZO1X_999_COMPRESS 0
 %define HAVE_MACH_ABSOLUTE_TIME 0
 %define HAVE_MAPVIEWOFFILE 0
-%define HAVE_MEMALIGN 1
 %define HAVE_MKSTEMP 1
 %define HAVE_MMAP 1
 %define HAVE_MPROTECT 1
 %define HAVE_NANOSLEEP 1
 %define HAVE_PEEKNAMEDPIPE 0
-%define HAVE_POSIX_MEMALIGN 1
 %define HAVE_PTHREAD_CANCEL 1
 %define HAVE_SCHED_GETAFFINITY 1
 %define HAVE_SETCONSOLETEXTATTRIBUTE 0
diff --git a/media/ffvpx/config_unix64.h b/media/ffvpx/config_unix64.h
--- media/ffvpx/config_unix64.h
+++ media/ffvpx/config_unix64.h
@@ -216,7 +216,6 @@
 #define HAVE_MACH_MACH_TIME_H 0
 #define HAVE_MACHINE_IOCTL_BT848_H 0
 #define HAVE_MACHINE_IOCTL_METEOR_H 0
-#define HAVE_MALLOC_H 1
 #define HAVE_OPENJPEG_2_1_OPENJPEG_H 0
 #define HAVE_OPENJPEG_2_0_OPENJPEG_H 0
 #define HAVE_OPENJPEG_1_5_OPENJPEG_H 0
@@ -269,7 +268,6 @@
 #define HAVE_TRUNCF 1
 #define HAVE_ACCESS 1
 #define HAVE_ALIGNED_MALLOC 0
-#define HAVE_ARC4RANDOM 0
 #define HAVE_CLOCK_GETTIME 1
 #define HAVE_CLOSESOCKET 0
 #define HAVE_COMMANDLINETOARGVW 0
@@ -295,18 +293,15 @@
 #define HAVE_ISATTY 1
 #define HAVE_JACK_PORT_GET_LATENCY_RANGE 0
 #define HAVE_KBHIT 0
-#define HAVE_LOCALTIME_R 1
 #define HAVE_LSTAT 1
 #define HAVE_LZO1X_999_COMPRESS 0
 #define HAVE_MACH_ABSOLUTE_TIME 0
 #define HAVE_MAPVIEWOFFILE 0
-#define HAVE_MEMALIGN 1
 #define HAVE_MKSTEMP 1
 #define HAVE_MMAP 1
 #define HAVE_MPROTECT 1
 #define HAVE_NANOSLEEP 1
 #define HAVE_PEEKNAMEDPIPE 0
-#define HAVE_POSIX_MEMALIGN 1
 #define HAVE_PTHREAD_CANCEL 1
 #define HAVE_SCHED_GETAFFINITY 1
 #define HAVE_SETCONSOLETEXTATTRIBUTE 0