From ce18a556b6b1829a9e9b1effed12b822648907c7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ricardo=20Lu=C3=ADs=20Vaz=20Silva?= <ricolvs123@gmail.com>
Date: Sun, 9 Mar 2025 16:54:41 -0300
Subject: [PATCH] remove K&R C function declaration bullshit from lemon.c

should be enough to fix GCC15 compilation without fucking up size_t/etc
---
 tools/lemon/lemon.c | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/tools/lemon/lemon.c b/tools/lemon/lemon.c
index bdc004a17d..e5fd16905a 100644
--- a/tools/lemon/lemon.c
+++ b/tools/lemon/lemon.c
@@ -53,7 +53,7 @@ extern int access(char *path, int mode);
 #endif
 
 static int showPrecedenceConflict = 0;
-static void *msort(void *list, void *next, int (*cmp)());
+static void *msort(void *list, void *next, int (*cmp)(void*, void*));
 
 /*
 ** Compilers are getting increasingly pedantic about type conversions
@@ -359,7 +359,7 @@ struct symbol **Symbol_arrayof(void);
 
 /* Routines to manage the state table */
 
-int Configcmp(const char *, const char *);
+int Configcmp(void *, void *);
 struct state *State_new(void);
 void State_init(void);
 int State_insert(struct state *, struct config *);
@@ -403,10 +403,10 @@ static struct action *Action_new(void){
 ** positive if the first action is less than, equal to, or greater than
 ** the first
 */
-static int actioncmp(ap1,ap2)
-struct action *ap1;
-struct action *ap2;
+static int actioncmp(void *_ap1,void *_ap2)
 {
+  struct action * ap1 = (struct action *)_ap1;
+  struct action * ap2 = (struct action *)_ap2;
   int rc;
   rc = ap1->sp->index - ap2->sp->index;
   if( rc==0 ){
@@ -1757,9 +1757,9 @@ int main(int argc, char **argv)
 **   The "next" pointers for elements in the lists a and b are
 **   changed.
 */
-static void *merge(void *a,void *b,int (*cmp)(),size_t offset)
+static void *merge(void *a,void *b,int (*cmp)(void *a, void *b),size_t offset)
 {
-  char *ptr, *head;
+  void *ptr, *head;
 
   if( a==0 ){
     head = b;
@@ -1805,11 +1805,11 @@ static void *merge(void *a,void *b,int (*cmp)(),size_t offset)
 **   The "next" pointers for elements in list are changed.
 */
 #define LISTSIZE 30
-static void *msort(void *list,void *next,int (*cmp)())
+static void *msort(void *list,void *next,int (*cmp)(void*, void*))
 {
   size_t offset;
-  char *ep;
-  char *set[LISTSIZE];
+  void *ep;
+  void *set[LISTSIZE];
   int i;
   offset = (size_t)next - (size_t)list;
   for(i=0; i<LISTSIZE; i++) set[i] = 0;
@@ -2714,9 +2714,7 @@ static void preprocess_input(char *z){
   }
 }
 
-int strip_crlf(filebuf, filesize)
-char *filebuf;
-int filesize;
+int strip_crlf(char *filebuf, int filesize)
 {
 	int i, j;
 
@@ -5136,10 +5134,10 @@ struct symbol **Symbol_arrayof()
 }
 
 /* Compare two configurations */
-int Configcmp(const char *_a,const char *_b)
+int Configcmp(void *_a,void *_b)
 {
-  const struct config *a = (struct config *) _a;
-  const struct config *b = (struct config *) _b;
+  const struct config *a = (const struct config *) _a;
+  const struct config *b = (const struct config *) _b;
   int x;
   x = a->rp->index - b->rp->index;
   if( x==0 ) x = a->dot - b->dot;
@@ -5147,8 +5145,10 @@ int Configcmp(const char *_a,const char *_b)
 }
 
 /* Compare two states */
-PRIVATE int statecmp(struct config *a, struct config *b)
+PRIVATE int statecmp(void *_a, void *_b)
 {
+  const struct config *a = (const struct config *) _a;
+  const struct config *b = (const struct config *) _b;
   int rc;
   for(rc=0; rc==0 && a && b;  a=a->bp, b=b->bp){
     rc = a->rp->index - b->rp->index;
@@ -5377,7 +5377,7 @@ int Configtable_insert(struct config *data)
   h = ph & (x4a->size-1);
   np = x4a->ht[h];
   while( np ){
-    if( Configcmp((const char *) np->data,(const char *) data)==0 ){
+    if( Configcmp(np->data, data)==0 ){
       /* An existing entry with the same key is found. */
       /* Fail because overwrite is not allows. */
       return 0;
@@ -5430,7 +5430,7 @@ struct config *Configtable_find(struct config *key)
   h = confighash(key) & (x4a->size-1);
   np = x4a->ht[h];
   while( np ){
-    if( Configcmp((const char *) np->data,(const char *) key)==0 ) break;
+    if( Configcmp(np->data,key)==0 ) break;
     np = np->next;
   }
   return np ? np->data : 0;