File alttab-gcc15.patch of Package alttab

diff -upr alttab-1.7.1.orig/src/alttab.c alttab-1.7.1/src/alttab.c
--- alttab-1.7.1.orig/src/alttab.c	2025-05-05 15:47:25.877677270 +0000
+++ alttab-1.7.1/src/alttab.c	2025-05-05 15:48:02.167866699 +0000
@@ -533,7 +533,7 @@ static int use_args_and_xrm(int *argc, c
 //
 static int grabKeysAtStartup(bool grabUngrab)
 {
-    g.ignored_modmask = getOffendingModifiersMask(dpy); // or 0 for g.debug
+    g.ignored_modmask = getOffendingModifiersMask(); // or 0 for g.debug
     char *grabhint =
         "Error while (un)grabbing key 0x%x with mask 0x%x/0x%x.\nProbably other program already grabbed this combination.\nCheck: xdotool keydown alt+Tab; xdotool key XF86LogGrabInfo; xdotool keyup Tab; sleep 1; xdotool keyup alt\nand then look for active device grabs in /var/log/Xorg.0.log\nOr try Ctrl-Tab instead of Alt-Tab:  alttab -mk Control_L\n";
 // attempt XF86Ungrab? probably too invasive
diff -upr alttab-1.7.1.orig/src/pngd.h alttab-1.7.1/src/pngd.h
--- alttab-1.7.1.orig/src/pngd.h	2025-05-05 15:47:25.877992578 +0000
+++ alttab-1.7.1/src/pngd.h	2025-05-05 15:48:02.168120212 +0000
@@ -46,6 +46,6 @@ int pngDraw(TImage * img, Drawable d, XI
             uint8_t bg_red, uint8_t bg_green, uint8_t bg_blue);
 int pngReadToDrawable(char *pngpath, Drawable d, uint8_t bg_red,
                       uint8_t bg_green, uint8_t bg_blue);
-int pngReadToDrawable_test();
+int pngReadToDrawable_test(char *pngfile);
 
 #endif
diff -upr alttab-1.7.1.orig/src/util.c alttab-1.7.1/src/util.c
--- alttab-1.7.1.orig/src/util.c	2025-05-05 15:47:25.878098923 +0000
+++ alttab-1.7.1/src/util.c	2025-05-05 15:48:02.168329846 +0000
@@ -33,7 +33,7 @@ bool ee_complain;
 //
 // get all possible modifiers
 //
-unsigned int getOffendingModifiersMask()
+unsigned int getOffendingModifiersMask(void)
 {
     unsigned int lockmask[3];   // num=0 scroll=1 caps=2
     int i;
diff -upr alttab-1.7.1.orig/src/util.h alttab-1.7.1/src/util.h
--- alttab-1.7.1.orig/src/util.h	2025-05-05 15:47:25.878146984 +0000
+++ alttab-1.7.1/src/util.h	2025-05-05 15:48:02.168553574 +0000
@@ -66,7 +66,7 @@ typedef struct {
 }
 
 
-unsigned int getOffendingModifiersMask();
+unsigned int getOffendingModifiersMask(void);
 int changeKeygrab(Window win, bool grab, KeyCode keycode,
                   unsigned int modmask, unsigned int ignored_modmask);
 int zeroErrorHandler(Display * dpy_our, XErrorEvent * theEvent);