Index: src/buffer.c
--- src/buffer.c.orig	2019-09-22 13:16:22.000000000 +0200
+++ src/buffer.c	2019-09-23 21:12:22.277103000 +0200
@@ -1,3 +1,4 @@
+#include <sys/types.h>
 #include "buffer.h"
 #include "rmalloc.h"
 #include <assert.h>
Index: src/buffer.h
--- src/buffer.h.orig	2019-09-22 13:16:22.000000000 +0200
+++ src/buffer.h	2019-09-23 21:12:22.277227000 +0200
@@ -6,6 +6,8 @@
 #include <string.h>
 #include <stdint.h>
 #include <arpa/inet.h>
+#include <sys/types.h>
+#include <inttypes.h>
 
 #define BUFFER_READ 0
 #define BUFFER_WRITE 1
Index: src/concurrent_ctx.c
--- src/concurrent_ctx.c.orig	2019-09-22 13:16:22.000000000 +0200
+++ src/concurrent_ctx.c	2019-09-23 21:12:22.277363000 +0200
@@ -137,7 +137,11 @@
 /** Check the elapsed timer, and release the lock if enough time has passed */
 int ConcurrentSearch_CheckTimer(ConcurrentSearchCtx *ctx) {
   static struct timespec now;
+#ifdef CLOCK_MONOTONIC_RAW
   clock_gettime(CLOCK_MONOTONIC_RAW, &now);
+#else
+  clock_gettime(CLOCK_MONOTONIC, &now);
+#endif
 
   long long durationNS = (long long)1000000000 * (now.tv_sec - ctx->lastTime.tv_sec) +
                          (now.tv_nsec - ctx->lastTime.tv_nsec);
@@ -159,7 +163,11 @@
 }
 
 void ConcurrentSearchCtx_ResetClock(ConcurrentSearchCtx *ctx) {
+#ifdef CLOCK_MONOTONIC_RAW
   clock_gettime(CLOCK_MONOTONIC_RAW, &ctx->lastTime);
+#else
+  clock_gettime(CLOCK_MONOTONIC, &ctx->lastTime);
+#endif
   ctx->ticker = 0;
 }
 
Index: src/cursor.c
--- src/cursor.c.orig	2019-09-22 13:16:22.000000000 +0200
+++ src/cursor.c	2019-09-23 21:12:22.277489000 +0200
@@ -8,7 +8,11 @@
 
 static uint64_t curTimeNs() {
   struct timespec tv;
+#ifdef CLOCK_MONOTONIC_RAW
+  clock_gettime(CLOCK_MONOTONIC_RAW, &tv);
+#else
   clock_gettime(CLOCK_MONOTONIC, &tv);
+#endif
   return tv.tv_nsec + (tv.tv_sec * 1000000000);
 }
 
