https://bugs.gentoo.org/832419
--- a/src/media/image.c
+++ b/src/media/image.c
@@ -11,6 +11,7 @@
 
 #include <stdio.h>
 #include <stdlib.h> /* On many systems (Darwin...), stdio.h is a prerequisite. */
+#include <stdint.h>
 #include <string.h>
 
 #include <netinet/in.h> /* ntohl */
@@ -288,7 +289,7 @@ unsigned char *find_jpeg_image(const unsigned char *data, const size_t len, unsi
 unsigned char *find_png_eoi(unsigned char *buffer, const size_t len) {
     unsigned char *end_data, *data, chunk_code[PNG_CODE_LEN + 1];
     struct png_chunk chunk;
-    u_int32_t datalen;
+    uint32_t datalen;
 
     /* Move past the PNG header */
     data = (buffer + PNG_SIG_LEN);
--- a/src/network/layer2.c
+++ b/src/network/layer2.c
@@ -12,6 +12,7 @@
 
 #include "compat/compat.h"
 
+#include <stdint.h>
 #include <string.h>
 
 #ifdef __FreeBSD__
@@ -39,7 +40,7 @@
 struct ethhdr {
 	unsigned char   h_dest[ETH_ALEN];
 	unsigned char   h_source[ETH_ALEN];
-	u_int16_t       h_proto;
+	uint16_t       h_proto;
 } __attribute__((packed));
 #endif
 
@@ -55,20 +56,20 @@ struct ethhdr {
 #endif
 
 struct ieee80211_radiotap_header {
-	u_int8_t        it_version;     /* set to 0 */
-	u_int8_t        it_pad;
-	u_int16_t       it_len;         /* entire length */
-	u_int32_t       it_present;     /* fields present */
+	uint8_t        it_version;     /* set to 0 */
+	uint8_t        it_pad;
+	uint16_t       it_len;         /* entire length */
+	uint32_t       it_present;     /* fields present */
 };
 
 struct ieee80211_frame {
-    u_int16_t fc;
-    u_int16_t wi_duration;
-    u_int8_t wi_add1[6];
-    u_int8_t wi_add2[6];
-    u_int8_t wi_add3[6];
-    u_int16_t wi_sequenceControl;
-    // u_int8_t wi_add4[6];
+    uint16_t fc;
+    uint16_t wi_duration;
+    uint8_t wi_add1[6];
+    uint8_t wi_add2[6];
+    uint8_t wi_add3[6];
+    uint16_t wi_sequenceControl;
+    // uint8_t wi_add4[6];
     //unsigned int qosControl:2;
     //unsigned int frameBody[23124];
 };
@@ -89,13 +90,13 @@ struct frame_control {
 
 /* SNAP LLC header format */
 struct snap_header {
-  u_int8_t dsap;
-  u_int8_t ssap;
-  u_int8_t ctl;
-  u_int8_t org1;
-  u_int8_t org2;
-  u_int8_t org3;
-  u_int16_t ether_type;          /* ethernet type */
+  uint8_t dsap;
+  uint8_t ssap;
+  uint8_t ctl;
+  uint8_t org1;
+  uint8_t org2;
+  uint8_t org3;
+  uint16_t ether_type;          /* ethernet type */
 };
 
 /*
--- a/src/network/layer3.c
+++ b/src/network/layer3.c
@@ -12,6 +12,7 @@
 
 #include "compat/compat.h"
 
+#include <stdint.h>
 #include <string.h>
 #include <assert.h>
 
@@ -30,8 +31,8 @@
 int layer3_find_tcp(const u_char *pkt, uint8_t nextproto, int * offset,
 		struct sockaddr * src, struct sockaddr * dst, struct tcphdr * tcp)
 {
-	u_int16_t *sport = NULL;
-	u_int16_t *dport = NULL;
+	uint16_t *sport = NULL;
+	uint16_t *dport = NULL;
 
 	while (1) {
 		switch (nextproto) {