diff --git a/src/common/apple/smc_temps.c b/src/common/apple/smc_temps.c
index 708ae7437..0a31a5052 100644
--- a/src/common/apple/smc_temps.c
+++ b/src/common/apple/smc_temps.c
@@ -166,7 +166,7 @@ static const char *smcReadValue(io_connect_t conn, const UInt32Char_t key, doubl
                     case 1: *value = *(uint8_t *)(val.bytes); break;
                     case 2: *value = ntohs(*(uint16_t *)(val.bytes)); break;
                     case 4: *value = ntohl(*(uint32_t *)(val.bytes)); break;
-                    case 8: *value = ntohll(*(uint64_t *)(val.bytes)); break;
+                    case 8: *value = (double) ntohll(*(uint64_t *)(val.bytes)); break;
                     default:
                         return "Unsupported SMC unsigned integer data size";
                 }
@@ -213,7 +213,7 @@ static const char *smcReadValue(io_connect_t conn, const UInt32Char_t key, doubl
                     case 1: *value = *(int8_t *)(val.bytes); break;
                     case 2: *value = ntohs(*(int16_t *)(val.bytes)); break;
                     case 4: *value = ntohl(*(int32_t *)(val.bytes)); break;
-                    case 8: *value = ntohll(*(int64_t *)(val.bytes)); break;
+                    case 8: *value = (double)ntohll(*(int64_t *)(val.bytes)); break;
                     default: return "Unsupported SMC signed integer data size";
                 }
             }
diff --git a/src/common/impl/FFPlatform_unix.c b/src/common/impl/FFPlatform_unix.c
index 25c3f86a0..6431dc86c 100644
--- a/src/common/impl/FFPlatform_unix.c
+++ b/src/common/impl/FFPlatform_unix.c
@@ -28,7 +28,7 @@ static void getExePath(FFPlatform* platform)
         if (exePathLen >= 0)
             exePath[exePathLen] = '\0';
     #elif defined(__APPLE__)
-        int exePathLen = proc_pidpath(platform->pid, exePath, sizeof(exePath));
+        int exePathLen = proc_pidpath((pid_t) platform->pid, exePath, sizeof(exePath));
     #elif defined(__FreeBSD__) || defined(__NetBSD__)
         size_t exePathLen = sizeof(exePath);
         if(sysctl(
diff --git a/src/common/impl/netif_apple.c b/src/common/impl/netif_apple.c
index 64b1e99f1..346ce8937 100644
--- a/src/common/impl/netif_apple.c
+++ b/src/common/impl/netif_apple.c
@@ -85,7 +85,7 @@ bool ffNetifGetDefaultRouteImplV4(FFNetifDefaultRouteResult* result)
             .rtm_version = RTM_VERSION,
             .rtm_addrs = RTA_DST | RTA_IFP | RTA_IFA,
             .rtm_msglen = sizeof(rtmsg.hdr) + sizeof(rtmsg.dst),
-            .rtm_pid = pid,
+            .rtm_pid = (pid_t) pid,
             .rtm_seq = 1,
         },
         .dst = {
@@ -99,7 +99,7 @@ bool ffNetifGetDefaultRouteImplV4(FFNetifDefaultRouteResult* result)
     if (send(pfRoute, &rtmsg, rtmsg.hdr.rtm_msglen, 0) != rtmsg.hdr.rtm_msglen)
         return false;
 
-    while (recv(pfRoute, &rtmsg, sizeof(rtmsg), 0) > 0 && !(rtmsg.hdr.rtm_seq == 1 && rtmsg.hdr.rtm_pid == pid))
+    while (recv(pfRoute, &rtmsg, sizeof(rtmsg), 0) > 0 && !(rtmsg.hdr.rtm_seq == 1 && rtmsg.hdr.rtm_pid == (pid_t) pid))
         ;
 
     #ifndef __sun // On Solaris, the RTF_GATEWAY flag is not set for default routes for some reason
@@ -158,7 +158,7 @@ bool ffNetifGetDefaultRouteImplV6(FFNetifDefaultRouteResult* result)
             .rtm_version = RTM_VERSION,
             .rtm_addrs = RTA_DST | RTA_IFP,
             .rtm_msglen = sizeof(rtmsg.hdr) + sizeof(rtmsg.dst),
-            .rtm_pid = pid,
+            .rtm_pid = (pid_t) pid,
             .rtm_seq = 2,
         },
         .dst = {
@@ -172,7 +172,7 @@ bool ffNetifGetDefaultRouteImplV6(FFNetifDefaultRouteResult* result)
     if (send(pfRoute, &rtmsg, rtmsg.hdr.rtm_msglen, 0) != rtmsg.hdr.rtm_msglen)
         return false;
 
-    while (recv(pfRoute, &rtmsg, sizeof(rtmsg), 0) > 0 && !(rtmsg.hdr.rtm_seq == 2 && rtmsg.hdr.rtm_pid == pid))
+    while (recv(pfRoute, &rtmsg, sizeof(rtmsg), 0) > 0 && !(rtmsg.hdr.rtm_seq == 2 && rtmsg.hdr.rtm_pid == (pid_t) pid))
         ;
 
     #ifndef __sun // On Solaris, the RTF_GATEWAY flag is not set for default routes for some reason
diff --git a/src/common/impl/netif_linux.c b/src/common/impl/netif_linux.c
index 6e7631e7a..092d919fb 100644
--- a/src/common/impl/netif_linux.c
+++ b/src/common/impl/netif_linux.c
@@ -235,7 +235,7 @@ bool ffNetifGetDefaultRouteImplV6(FFNetifDefaultRouteResult* result)
     }
     FF_DEBUG("Created netlink socket: fd=%d", sock_fd);
 
-    int pid = instance.state.platform.pid;
+    uint32_t pid = instance.state.platform.pid;
     FF_DEBUG("Process PID: %u", pid);
 
     // Bind socket