From 4f183506f6ecbe1e9cdbc05768fe4d4846580102 Mon Sep 17 00:00:00 2001
From: RaceTheMaSe <max.seidenstuecker@gmail.com>
Date: Sat, 7 Feb 2026 16:38:59 +0100
Subject: [PATCH] Fix warning: strict prototypes (#14992)

clang: a function declaration without a prototype is deprecated in all versions of C [-Wstrict-prototypes]
---
 src/core/unix/SDL_gtk.c                  |  2 +-
 src/tray/windows/SDL_tray.c              |  2 +-
 src/video/openvr/SDL_openvrvideo.c       | 10 +++++-----
 src/video/windows/SDL_windowsclipboard.c |  2 +-
 src/video/windows/SDL_windowskeyboard.c  |  2 +-
 src/video/x11/SDL_x11xinput2.c           |  2 +-
 test/testpalette.c                       |  2 +-
 7 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/src/core/unix/SDL_gtk.c b/src/core/unix/SDL_gtk.c
index 6cf26fd47a..92e8a16ff9 100644
--- a/src/core/unix/SDL_gtk.c
+++ b/src/core/unix/SDL_gtk.c
@@ -78,7 +78,7 @@ static void QuitGtk(void)
     libgtk = NULL;
 }
 
-static bool IsGtkInit()
+static bool IsGtkInit(void)
 {
     return libgdk != NULL && libgtk != NULL;
 }
diff --git a/src/tray/windows/SDL_tray.c b/src/tray/windows/SDL_tray.c
index f3c6d90c85..fd46b6e3fb 100644
--- a/src/tray/windows/SDL_tray.c
+++ b/src/tray/windows/SDL_tray.c
@@ -226,7 +226,7 @@ static wchar_t *escape_label(const char *in)
     return out;
 }
 
-static HICON load_default_icon()
+static HICON load_default_icon(void)
 {
     HINSTANCE hInstance = GetModuleHandle(NULL);
     if (!hInstance) {
diff --git a/src/video/openvr/SDL_openvrvideo.c b/src/video/openvr/SDL_openvrvideo.c
index 5e7061be3e..8a9d36c7cc 100644
--- a/src/video/openvr/SDL_openvrvideo.c
+++ b/src/video/openvr/SDL_openvrvideo.c
@@ -74,7 +74,7 @@ SDL_ELF_NOTE_DLOPEN(
 // For access to functions that don't get the video data context.
 SDL_VideoData * global_openvr_driver;
 
-static void InitializeMouseFunctions();
+static void InitializeMouseFunctions(void);
 
 struct SDL_CursorData
 {
@@ -92,9 +92,9 @@ static void (APIENTRY *ov_glRenderbufferStorage)(GLenum target, GLenum internalf
 static void (APIENTRY *ov_glFramebufferRenderbuffer)(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
 static void (APIENTRY *ov_glFramebufferTexture2D)(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
 static GLenum (APIENTRY *ov_glCheckNamedFramebufferStatus)(GLuint framebuffer, GLenum target);
-static GLenum (APIENTRY *ov_glGetError)();
-static void (APIENTRY *ov_glFlush)();
-static void (APIENTRY *ov_glFinish)();
+static GLenum (APIENTRY *ov_glGetError)(void);
+static void (APIENTRY *ov_glFlush)(void);
+static void (APIENTRY *ov_glFinish)(void);
 static void (APIENTRY *ov_glGenTextures)(GLsizei n, GLuint *textures);
 static void (APIENTRY *ov_glDeleteTextures)(GLsizei n, GLuint *textures);
 static void (APIENTRY *ov_glTexParameterf)(GLenum target, GLenum pname, GLfloat param);
@@ -1431,7 +1431,7 @@ static bool OPENVR_ShowMessageBox(SDL_VideoDevice *_this,const SDL_MessageBoxDat
     return true;
 }
 
-static void InitializeMouseFunctions()
+static void InitializeMouseFunctions(void)
 {
     SDL_Mouse *mouse = SDL_GetMouse();
     mouse->CreateCursor = OPENVR_CreateCursor;
diff --git a/src/video/windows/SDL_windowsclipboard.c b/src/video/windows/SDL_windowsclipboard.c
index 219a5d7b06..b3fa551db0 100644
--- a/src/video/windows/SDL_windowsclipboard.c
+++ b/src/video/windows/SDL_windowsclipboard.c
@@ -33,7 +33,7 @@
 // Assume we can directly read and write BMP fields without byte swapping
 SDL_COMPILE_TIME_ASSERT(verify_byte_order, SDL_BYTEORDER == SDL_LIL_ENDIAN);
 
-static UINT GetClipboardFormatPNG()
+static UINT GetClipboardFormatPNG(void)
 {
     static UINT format;
 
diff --git a/src/video/windows/SDL_windowskeyboard.c b/src/video/windows/SDL_windowskeyboard.c
index 698ae5d75a..9129c7dd9e 100644
--- a/src/video/windows/SDL_windowskeyboard.c
+++ b/src/video/windows/SDL_windowskeyboard.c
@@ -101,7 +101,7 @@ static void WIN_CacheKeymap(HKL layout, SDL_Keymap *keymap)
     ++keymap_cache_size;
 }
 
-static SDL_Keymap *WIN_BuildKeymap()
+static SDL_Keymap *WIN_BuildKeymap(void)
 {
     SDL_Scancode scancode;
     BYTE keyboardState[256] = { 0 };
diff --git a/src/video/x11/SDL_x11xinput2.c b/src/video/x11/SDL_x11xinput2.c
index 30deb118a8..c8b37cec98 100644
--- a/src/video/x11/SDL_x11xinput2.c
+++ b/src/video/x11/SDL_x11xinput2.c
@@ -139,7 +139,7 @@ static SDL_Window *xinput2_get_sdlwindow(SDL_VideoData *videodata, Window window
 }
 
 #ifdef SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_SCROLLINFO
-static void xinput2_reset_scrollable_valuators()
+static void xinput2_reset_scrollable_valuators(void)
 {
     for (int i = 0; i < scrollable_device_count; ++i) {
         for (int j = 0; j < scrollable_devices[i].scroll_info_count; ++j) {
diff --git a/test/testpalette.c b/test/testpalette.c
index 6355d59230..acaead57c2 100644
--- a/test/testpalette.c
+++ b/test/testpalette.c
@@ -304,7 +304,7 @@ static SDL_Texture *CreateTexture(const void *pixels, int pitch)
     return tex;
 }
 
-static bool CreateTextures()
+static bool CreateTextures(void)
 {
     Uint8 data[256];
     int i;