Fix a bunch of compiler warnings and remove suppressions.

30 files changed, 102 insertions, 71 deletions

diff --git a/auto_tests/BUILD.bazel b/auto_tests/BUILD.bazel
index 88951f97..af8920b1 100644
--- a/auto_tests/BUILD.bazel
+++ b/auto_tests/BUILD.bazel
@@ -11,10 +11,7 @@ cc_library(
     name = src[:-2],
     size = "small",
     srcs = [src],
-    copts = [
-        "-Wno-parentheses",
-        "-Wno-sign-compare",
-    ],
+    copts = ["-Wno-sign-compare"],
     deps = [
         ":helpers",
         "//c-toxcore/other:monolith",
@@ -37,10 +34,7 @@ cc_test(
     name = "monolith_test",
     size = "small",
     srcs = ["monolith_test.cpp"],
-    copts = [
-        "-Wno-parentheses",
-        "-Wno-sign-compare",
-    ],
+    copts = ["-Wno-sign-compare"],
     deps = [
         ":helpers",
         ":monolith",
diff --git a/auto_tests/TCP_test.c b/auto_tests/TCP_test.c
index b14f53f2..686419a6 100644
--- a/auto_tests/TCP_test.c
+++ b/auto_tests/TCP_test.c
@@ -28,10 +28,8 @@
 #endif
 
 #if !USE_IPV6
-#  undef TOX_AF_INET6
-#  define TOX_AF_INET6 TOX_AF_INET
-#  define get_ip6_loopback get_ip4_loopback
-#  define IP6 IP4
+#undef TOX_AF_INET6
+#define TOX_AF_INET6 TOX_AF_INET
 #endif
 
 static inline IP get_loopback()
@@ -769,7 +767,7 @@ static Suite *TCP_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/check_compat.h b/auto_tests/check_compat.h
index 755dea81..badf18c8 100644
--- a/auto_tests/check_compat.h
+++ b/auto_tests/check_compat.h
@@ -16,26 +16,26 @@ typedef struct Suite Suite;
 typedef struct SRunner SRunner;
 enum SRunMode { CK_NORMAL };
 
-Suite *suite_create(const char *title)
+static inline Suite *suite_create(const char *title)
 {
     printf("Running test suite: %s\n", title);
     return nullptr;
 }
 
-SRunner *srunner_create(Suite *s)
+static inline SRunner *srunner_create(Suite *s)
 {
     return nullptr;
 }
 
-void srunner_free(SRunner *s)
+static inline void srunner_free(SRunner *s)
 {
 }
 
-void srunner_run_all(SRunner *r, int mode)
+static inline void srunner_run_all(SRunner *r, int mode)
 {
 }
 
-int srunner_ntests_failed(SRunner *r)
+static inline int srunner_ntests_failed(SRunner *r)
 {
     return 0;
 }
diff --git a/auto_tests/conference_test.c b/auto_tests/conference_test.c
index 72c81de3..9e784e85 100644
--- a/auto_tests/conference_test.c
+++ b/auto_tests/conference_test.c
@@ -252,7 +252,7 @@ static void test_many_group(void)
     printf("test_many_group succeeded, took %d seconds\n", (int)(time(nullptr) - test_start_time));
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/crypto_test.c b/auto_tests/crypto_test.c
index e2c4e307..3b95dcc1 100644
--- a/auto_tests/crypto_test.c
+++ b/auto_tests/crypto_test.c
@@ -354,7 +354,7 @@ static Suite *crypto_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
     srand((unsigned int) time(nullptr));
diff --git a/auto_tests/dht_test.c b/auto_tests/dht_test.c
index 516e1a8e..fe23a598 100644
--- a/auto_tests/dht_test.c
+++ b/auto_tests/dht_test.c
@@ -22,13 +22,6 @@
 // These tests currently fail.
 static bool enable_broken_tests = false;
 
-#define swap(x,y) do \
-   { unsigned char swap_temp[sizeof(x) == sizeof(y) ? (signed)sizeof(x) : -1]; \
-     memcpy(swap_temp,&y,sizeof(x)); \
-     memcpy(&y,&x,       sizeof(x)); \
-     memcpy(&x,swap_temp,sizeof(x)); \
-    } while(0)
-
 #ifndef USE_IPV6
 #define USE_IPV6 1
 #endif
@@ -335,7 +328,9 @@ static void test_addto_lists(IP ip)
     DHT *dht = new_DHT(nullptr, net, true);
     ck_assert_msg(dht != nullptr, "Failed to create DHT");
 
-    IP_Port ip_port = { .ip = ip, .port = TOX_PORT_DEFAULT };
+    IP_Port ip_port;
+    ip_port.ip = ip;
+    ip_port.port = TOX_PORT_DEFAULT;
     uint8_t public_key[CRYPTO_PUBLIC_KEY_SIZE];
     int i, used;
 
@@ -413,8 +408,6 @@ END_TEST
 
 #define DHT_DEFAULT_PORT (TOX_PORT_DEFAULT + 20)
 
-#define DHT_LIST_LENGTH 128
-
 static void print_pk(uint8_t *public_key)
 {
     uint32_t j;
@@ -799,7 +792,7 @@ static Suite *dht_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
     srand((unsigned int) time(nullptr));
diff --git a/auto_tests/encryptsave_test.c b/auto_tests/encryptsave_test.c
index 41769dad..48a43c86 100644
--- a/auto_tests/encryptsave_test.c
+++ b/auto_tests/encryptsave_test.c
@@ -204,7 +204,7 @@ static Suite *encryptsave_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
     srand((unsigned int) time(nullptr));
diff --git a/auto_tests/file_transfer_test.c b/auto_tests/file_transfer_test.c
index ab66ddd0..7fe780b8 100644
--- a/auto_tests/file_transfer_test.c
+++ b/auto_tests/file_transfer_test.c
@@ -287,7 +287,11 @@ START_TEST(test_few_clients)
 
     printf("Starting file streaming transfer test.\n");
 
-    file_sending_done = file_accepted = file_size = sendf_ok = size_recv = 0;
+    file_sending_done = 0;
+    file_accepted = 0;
+    file_size = 0;
+    sendf_ok = 0;
+    size_recv = 0;
     file_recv = 0;
     tox_callback_file_recv_chunk(tox3, write_file);
     tox_callback_file_recv_control(tox2, file_print_control);
@@ -335,7 +339,11 @@ START_TEST(test_few_clients)
 
     printf("Starting file 0 transfer test.\n");
 
-    file_sending_done = file_accepted = file_size = sendf_ok = size_recv = 0;
+    file_sending_done = 0;
+    file_accepted = 0;
+    file_size = 0;
+    sendf_ok = 0;
+    size_recv = 0;
     file_recv = 0;
     tox_callback_file_recv_chunk(tox3, write_file);
     tox_callback_file_recv_control(tox2, file_print_control);
@@ -395,7 +403,7 @@ static Suite *tox_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
     srand((unsigned int) time(nullptr));
diff --git a/auto_tests/friend_request_test.c b/auto_tests/friend_request_test.c
index d9987cfc..2fbc2166 100644
--- a/auto_tests/friend_request_test.c
+++ b/auto_tests/friend_request_test.c
@@ -83,7 +83,7 @@ static void test_friend_request(void)
     tox_kill(tox2);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/helpers.h b/auto_tests/helpers.h
index fbb2ff04..bebde35b 100644
--- a/auto_tests/helpers.h
+++ b/auto_tests/helpers.h
@@ -19,6 +19,8 @@
 
 #define ITERATION_INTERVAL 200
 
+Tox *tox_new_log(struct Tox_Options *options, TOX_ERR_NEW *err, void *log_user_data);
+
 static const char *tox_log_level_name(TOX_LOG_LEVEL level)
 {
     switch (level) {
@@ -54,7 +56,7 @@ static void print_debug_log(Tox *m, TOX_LOG_LEVEL level, const char *path, uint3
     fprintf(stderr, "[#%d] %s %s:%d\t%s:\t%s\n", index, tox_log_level_name(level), file, line, func, message);
 }
 
-Tox *tox_new_log_lan(struct Tox_Options *options, TOX_ERR_NEW *err, void *log_user_data, bool lan_discovery)
+static Tox *tox_new_log_lan(struct Tox_Options *options, TOX_ERR_NEW *err, void *log_user_data, bool lan_discovery)
 {
     struct Tox_Options *log_options = options;
 
diff --git a/auto_tests/lossless_packet_test.c b/auto_tests/lossless_packet_test.c
index b5185757..05d56c4d 100644
--- a/auto_tests/lossless_packet_test.c
+++ b/auto_tests/lossless_packet_test.c
@@ -103,7 +103,7 @@ static void test_lossless_packet(void)
     tox_kill(tox2);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/lossy_packet_test.c b/auto_tests/lossy_packet_test.c
index d225a62b..c0af148f 100644
--- a/auto_tests/lossy_packet_test.c
+++ b/auto_tests/lossy_packet_test.c
@@ -100,7 +100,7 @@ static void test_lossy_packet(void)
     tox_kill(tox2);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/messenger_test.c b/auto_tests/messenger_test.c
index 9d797b55..12b00fd7 100644
--- a/auto_tests/messenger_test.c
+++ b/auto_tests/messenger_test.c
@@ -25,14 +25,13 @@
 #include <string.h>
 #include <sys/types.h>
 
-#if VANILLA_NACL
+#ifdef VANILLA_NACL
 #include <crypto_box.h> // crypto_box_PUBLICKEYBYTES and other defines.
 #else
 #include <sodium.h>
 #endif
 
 #define REALLY_BIG_NUMBER ((1) << (sizeof(uint16_t) * 7))
-#define STRINGS_EQUAL(X, Y) (strcmp(X, Y) == 0)
 
 static bool enable_broken_tests = false;
 
@@ -213,7 +212,7 @@ START_TEST(test_m_copy_userstatus)
     assert(m_copy_userstatus(REALLY_BIG_NUMBER, buf, MAX_USERSTATUS_LENGTH) == -1);
     m_copy_userstatus(friend_id_num, buf, MAX_USERSTATUS_LENGTH + 6);
 
-    assert(STRINGS_EQUAL(name_buf, friend_id_status));
+    assert(strcmp(name_buf, friend_id_status) == 0);
 }
 END_TEST
 #endif
@@ -346,7 +345,7 @@ static Suite *messenger_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/monolith_test.cpp b/auto_tests/monolith_test.cpp
index 99703acf..60bafeb5 100644
--- a/auto_tests/monolith_test.cpp
+++ b/auto_tests/monolith_test.cpp
@@ -8,8 +8,9 @@
 #include <net/if.h>
 #endif
 
+#ifdef __APPLE__
 #define _DARWIN_C_SOURCE
-#define _XOPEN_SOURCE 600
+#endif
 
 #ifdef HAVE_CONFIG_H
 #include "config.h"
@@ -26,130 +27,162 @@
 
 namespace TCP_test
 {
+int main(void);
 #include "TCP_test.c"
 }
 namespace bootstrap_test
 {
+int main(void);
 #include "bootstrap_test.c"
 }
 namespace conference_test
 {
+int main(void);
 #include "conference_test.c"
 }
 namespace crypto_test
 {
+int main(void);
 #include "crypto_test.c"
 }
 namespace dht_test
 {
+int main(void);
 #include "dht_test.c"
 }
 namespace encryptsave_test
 {
+int main(void);
 #include "encryptsave_test.c"
 }
 namespace file_saving_test
 {
+int main(void);
 #include "file_saving_test.c"
 }
 namespace friend_request_test
 {
+int main(void);
 #include "friend_request_test.c"
 }
 namespace lan_discovery_test
 {
+int main(void);
 #include "lan_discovery_test.c"
 }
 namespace lossless_packet_test
 {
+int main(void);
 #include "lossless_packet_test.c"
 }
 namespace lossy_packet_test
 {
+int main(void);
 #include "lossy_packet_test.c"
 }
 namespace messenger_test
 {
+int main(void);
 #include "messenger_test.c"
 }
 namespace network_test
 {
+int main(void);
 #include "network_test.c"
 }
 namespace onion_test
 {
+int main(void);
 #include "onion_test.c"
 }
 namespace resource_leak_test
 {
+int main(void);
 #include "resource_leak_test.c"
 }
 namespace save_friend_test
 {
+int main(void);
 #include "save_friend_test.c"
 }
 namespace save_load_test
 {
+int main(void);
 #include "save_load_test.c"
 }
 namespace selfname_change_conference_test
 {
+int main(void);
 #include "selfname_change_conference_test.c"
 }
 namespace self_conference_title_change_test
 {
+int main(void);
 #include "self_conference_title_change_test.c"
 }
 namespace send_message_test
 {
+int main(void);
 #include "send_message_test.c"
 }
 namespace set_name_test
 {
+int main(void);
 #include "set_name_test.c"
 }
 namespace set_status_message_test
 {
+int main(void);
 #include "set_status_message_test.c"
 }
 namespace simple_conference_test
 {
+int main(void);
 #include "simple_conference_test.c"
 }
 namespace skeleton_test
 {
+int main(void);
 #include "skeleton_test.c"
 }
 namespace toxav_basic_test
 {
+int main(void);
 #include "toxav_basic_test.c"
 }
 namespace toxav_many_test
 {
+int main(void);
 #include "toxav_many_test.c"
 }
 namespace tox_many_tcp_test
 {
+int main(void);
 #include "tox_many_tcp_test.c"
 }
 namespace tox_many_test
 {
+int main(void);
 #include "tox_many_test.c"
 }
 namespace tox_one_test
 {
+int main(void);
 #include "tox_one_test.c"
 }
 namespace tox_strncasecmp_test
 {
+int main(void);
 #include "tox_strncasecmp_test.c"
 }
 namespace typing_test
 {
+int main(void);
 #include "typing_test.c"
 }
 namespace version_test
 {
+int main(void);
 #include "version_test.c"
 }
 
diff --git a/auto_tests/onion_test.c b/auto_tests/onion_test.c
index 760a7800..e3eb3e5e 100644
--- a/auto_tests/onion_test.c
+++ b/auto_tests/onion_test.c
@@ -536,7 +536,7 @@ static Suite *onion_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
     srand((unsigned int) time(nullptr));
diff --git a/auto_tests/resource_leak_test.c b/auto_tests/resource_leak_test.c
index cf451ebd..55998b72 100644
--- a/auto_tests/resource_leak_test.c
+++ b/auto_tests/resource_leak_test.c
@@ -5,11 +5,12 @@
 #include "helpers.h"
 
 // See man 2 sbrk.
-#if _BSD_SOURCE || _SVID_SOURCE || \
-  (_XOPEN_SOURCE >= 500 || \
-   _XOPEN_SOURCE && _XOPEN_SOURCE_EXTENDED) && \
-  !(_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
+#if defined(_BSD_SOURCE) || defined(_SVID_SOURCE) || \
+  defined(_XOPEN_SOURCE) && (_XOPEN_SOURCE >= 500 || defined(_XOPEN_SOURCE_EXTENDED)) && \
+  !(defined(_POSIX_C_SOURCE) && _POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600)
 #define HAVE_SBRK 1
+#else
+#define HAVE_SBRK 0
 #endif
 
 #if HAVE_SBRK
diff --git a/auto_tests/save_friend_test.c b/auto_tests/save_friend_test.c
index ad4bd338..a7b41f52 100644
--- a/auto_tests/save_friend_test.c
+++ b/auto_tests/save_friend_test.c
@@ -33,21 +33,22 @@ static void set_random(Tox *m, bool (*setter)(Tox *, const uint8_t *, size_t, TO
     setter(m, text, SIZEOF_VLA(text), nullptr);
 }
 
-void namechange_callback(Tox *tox, uint32_t friend_number, const uint8_t *name, size_t length, void *user_data)
+static void namechange_callback(Tox *tox, uint32_t friend_number, const uint8_t *name, size_t length, void *user_data)
 {
     struct test_data *to_compare = (struct test_data *)user_data;
     memcpy(to_compare->name, name, length);
     to_compare->received_name = true;
 }
 
-void statuschange_callback(Tox *tox, uint32_t friend_number, const uint8_t *message, size_t length, void *user_data)
+static void statuschange_callback(Tox *tox, uint32_t friend_number, const uint8_t *message, size_t length,
+                                  void *user_data)
 {
     struct test_data *to_compare = (struct test_data *)user_data;
     memcpy(to_compare->status_message, message, length);
     to_compare->received_status_message = true;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/save_load_test.c b/auto_tests/save_load_test.c
index ab4e0a8c..50facb2c 100644
--- a/auto_tests/save_load_test.c
+++ b/auto_tests/save_load_test.c
@@ -140,7 +140,7 @@ static void test_few_clients(void)
     tox_kill(tox3);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/send_message_test.c b/auto_tests/send_message_test.c
index 3a5088f3..35ef5a62 100644
--- a/auto_tests/send_message_test.c
+++ b/auto_tests/send_message_test.c
@@ -111,7 +111,7 @@ static void test_send_message(void)
     tox_kill(tox2);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/set_name_test.c b/auto_tests/set_name_test.c
index a7f01ec7..20fb0a67 100644
--- a/auto_tests/set_name_test.c
+++ b/auto_tests/set_name_test.c
@@ -97,7 +97,7 @@ static void test_set_name(void)
     tox_kill(tox2);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/set_status_message_test.c b/auto_tests/set_status_message_test.c
index f1508720..fd6c3558 100644
--- a/auto_tests/set_status_message_test.c
+++ b/auto_tests/set_status_message_test.c
@@ -104,7 +104,7 @@ static void test_set_status_message(void)
     tox_kill(tox2);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/simple_conference_test.c b/auto_tests/simple_conference_test.c
index ad17d02e..7e07c45a 100644
--- a/auto_tests/simple_conference_test.c
+++ b/auto_tests/simple_conference_test.c
@@ -47,11 +47,13 @@ static void handle_conference_invite(Tox *tox, uint32_t friend_number, TOX_CONFE
     fprintf(stderr, "\nhandle_conference_invite(#%d, %d, %d, uint8_t[%zd], _)\n", state->id, friend_number, type, length);
     fprintf(stderr, "tox%d joining conference\n", state->id);
 
-    TOX_ERR_CONFERENCE_JOIN err;
-    state->conference = tox_conference_join(tox, friend_number, cookie, length, &err);
-    assert(err == TOX_ERR_CONFERENCE_JOIN_OK);
-    fprintf(stderr, "tox%d Joined conference %d\n", state->id, state->conference);
-    state->joined = true;
+    {
+        TOX_ERR_CONFERENCE_JOIN err;
+        state->conference = tox_conference_join(tox, friend_number, cookie, length, &err);
+        assert(err == TOX_ERR_CONFERENCE_JOIN_OK);
+        fprintf(stderr, "tox%d Joined conference %d\n", state->id, state->conference);
+        state->joined = true;
+    }
 
     // We're tox2, so now we invite tox3.
     if (state->id == 2) {
@@ -101,7 +103,7 @@ static void handle_conference_namelist_change(Tox *tox, uint32_t conference_numb
     }
 }
 
-int main()
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/skeleton_test.c b/auto_tests/skeleton_test.c
index ac9291d0..1d391a86 100644
--- a/auto_tests/skeleton_test.c
+++ b/auto_tests/skeleton_test.c
@@ -29,7 +29,7 @@ static Suite *creativesuitenamegoeshere_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/tox_many_tcp_test.c b/auto_tests/tox_many_tcp_test.c
index 682e23a6..6c3f2350 100644
--- a/auto_tests/tox_many_tcp_test.c
+++ b/auto_tests/tox_many_tcp_test.c
@@ -250,7 +250,7 @@ static Suite *tox_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/tox_many_test.c b/auto_tests/tox_many_test.c
index a797d99c..29f3af68 100644
--- a/auto_tests/tox_many_test.c
+++ b/auto_tests/tox_many_test.c
@@ -130,7 +130,7 @@ loop_top:
     printf("test_many_clients succeeded, took %ld seconds\n", time(nullptr) - cur_time);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/tox_one_test.c b/auto_tests/tox_one_test.c
index 4ac30326..f3323bc9 100644
--- a/auto_tests/tox_one_test.c
+++ b/auto_tests/tox_one_test.c
@@ -141,7 +141,7 @@ static Suite *tox_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/tox_strncasecmp_test.c b/auto_tests/tox_strncasecmp_test.c
index 27105eca..377ec2e3 100644
--- a/auto_tests/tox_strncasecmp_test.c
+++ b/auto_tests/tox_strncasecmp_test.c
@@ -22,7 +22,7 @@ typedef enum {
 
 static const char *Comparison_Str[] = { "NEGATIVE", "ZERO", "POSITIVE" };
 
-void verify(const char *s1, const char *s2, size_t n, Comparison expected)
+static void verify(const char *s1, const char *s2, size_t n, Comparison expected)
 {
     int r = tox_strncasecmp(s1, s2, n);
     Comparison actual = r < 0 ? NEGATIVE : r == 0 ? ZERO : POSITIVE;
@@ -177,7 +177,7 @@ static Suite *tox_strncasecmp_suite(void)
     return s;
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/toxav_basic_test.c b/auto_tests/toxav_basic_test.c
index 5c27e11f..b2b92255 100644
--- a/auto_tests/toxav_basic_test.c
+++ b/auto_tests/toxav_basic_test.c
@@ -559,7 +559,7 @@ static void test_av_flows(void)
     printf("\nTest successful!\n");
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/toxav_many_test.c b/auto_tests/toxav_many_test.c
index 4de1a867..ed4aa211 100644
--- a/auto_tests/toxav_many_test.c
+++ b/auto_tests/toxav_many_test.c
@@ -326,7 +326,7 @@ static void test_av_three_calls(void)
     printf("\nTest successful!\n");
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);
 
diff --git a/auto_tests/typing_test.c b/auto_tests/typing_test.c
index 837ed757..1262fa3d 100644
--- a/auto_tests/typing_test.c
+++ b/auto_tests/typing_test.c
@@ -102,7 +102,7 @@ static void test_typing(void)
     tox_kill(tox2);
 }
 
-int main(int argc, char *argv[])
+int main(void)
 {
     setvbuf(stdout, nullptr, _IONBF, 0);