From 2c2c2c5a4878dabe3aa350b5aa184c2c55b79e9a Mon Sep 17 00:00:00 2001
From: Petar Popovic <pjoetri@gmail.com>
Date: Sat, 26 Jul 2025 19:03:54 +0200
Subject: [PATCH] Fixed a few "-Wstrict-prototypes" warnings

---
 src/audio/alsa/SDL_alsa_audio.c  | 8 ++++----
 src/core/linux/SDL_progressbar.c | 4 ++--
 test/gamepadutils.h              | 2 +-
 test/testcontroller.c            | 2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/audio/alsa/SDL_alsa_audio.c b/src/audio/alsa/SDL_alsa_audio.c
index f93433e641..a0fb617ccd 100644
--- a/src/audio/alsa/SDL_alsa_audio.c
+++ b/src/audio/alsa/SDL_alsa_audio.c
@@ -1470,7 +1470,7 @@ static void ALSA_udev_callback(SDL_UDEV_deviceevent udev_type, int udev_class, c
     }
 }
 
-static bool ALSA_start_udev()
+static bool ALSA_start_udev(void)
 {
     udev_initialized = SDL_UDEV_Init();
     if (udev_initialized) {
@@ -1483,7 +1483,7 @@ static bool ALSA_start_udev()
     return udev_initialized;
 }
 
-static void ALSA_stop_udev()
+static void ALSA_stop_udev(void)
 {
     if (udev_initialized) {
         SDL_UDEV_DelCallback(ALSA_udev_callback);
@@ -1494,12 +1494,12 @@ static void ALSA_stop_udev()
 
 #else
 
-static bool ALSA_start_udev()
+static bool ALSA_start_udev(void)
 {
     return false;
 }
 
-static void ALSA_stop_udev()
+static void ALSA_stop_udev(void)
 {
 }
 
diff --git a/src/core/linux/SDL_progressbar.c b/src/core/linux/SDL_progressbar.c
index e50f8361ca..ac0789b2d2 100644
--- a/src/core/linux/SDL_progressbar.c
+++ b/src/core/linux/SDL_progressbar.c
@@ -32,7 +32,7 @@
 #define UnityLauncherAPI_DBUS_INTERFACE "com.canonical.Unity.LauncherEntry"
 #define UnityLauncherAPI_DBUS_SIGNAL    "Update"
 
-static char *GetDBUSObjectPath()
+static char *GetDBUSObjectPath(void)
 {
     char *app_id = SDL_strdup(SDL_GetAppID());
 
@@ -62,7 +62,7 @@ static char *GetDBUSObjectPath()
     return SDL_strdup(path);
 }
 
-static char *GetAppDesktopPath()
+static char *GetAppDesktopPath(void)
 {
     const char *desktop_suffix = ".desktop";
     const char *app_id = SDL_GetAppID();
diff --git a/test/gamepadutils.h b/test/gamepadutils.h
index 19eeefcff5..5e1dcd3093 100644
--- a/test/gamepadutils.h
+++ b/test/gamepadutils.h
@@ -161,7 +161,7 @@ typedef enum
 typedef struct Quaternion Quaternion;
 typedef struct GyroDisplay GyroDisplay;
 
-extern void InitCirclePoints3D();
+extern void InitCirclePoints3D(void);
 extern GyroDisplay *CreateGyroDisplay(SDL_Renderer *renderer);
 extern void SetGyroDisplayArea(GyroDisplay *ctx, const SDL_FRect *area);
 extern void SetGamepadDisplayIMUValues(GyroDisplay *ctx, float *gyro_drift_solution, float *euler_displacement_angles, Quaternion *gyro_quaternion, int reported_senor_rate_hz, int estimated_sensor_rate_hz, EGyroCalibrationPhase calibration_phase, float drift_calibration_progress_frac, float accelerometer_noise_sq, float accelerometer_noise_tolerance_sq);
diff --git a/test/testcontroller.c b/test/testcontroller.c
index 6b0fdea27f..a56661af5d 100644
--- a/test/testcontroller.c
+++ b/test/testcontroller.c
@@ -1439,7 +1439,7 @@ static void HandleGamepadGyroEvent(SDL_Event *event)
 #define SDL_GAMEPAD_IMU_MIN_POLLING_RATE_ESTIMATION_TIME_NS (SDL_NS_PER_SECOND * 2)
 
 
-static void EstimatePacketRate()
+static void EstimatePacketRate(void)
 {
     Uint64 now_ns = SDL_GetTicksNS();
     if (controller->imu_state->imu_packet_counter == 0) {