https://salsa.debian.org/med-team/mafft/-/commit/73d7be1d2ee617b3cd533e62adc2536b5c8330a9

From: Michael R. Crusoe <crusoe@debian.org>
Subject: Add GCC-16 compatibility
Forwarded: katoh@ifrec.osaka-u.ac.jp

--- a/core/constants.c
+++ b/core/constants.c
@@ -1537,7 +1537,7 @@
 	}
 }
 
-void freeconstants()
+void freeconstants(void)
 {
 	if( n_disLN ) FreeDoubleMtx( n_disLN ); n_disLN = NULL;
 	if( n_dis ) FreeIntMtx( n_dis ); n_dis = NULL;
--- a/core/defs.c
+++ b/core/defs.c
@@ -139,7 +139,7 @@
 int terminalmargin = 100;
 
 
-void initglobalvariables()
+void initglobalvariables(void)
 {
 	commonAlloc1 = 0;
 	commonAlloc2 = 0;
--- a/core/io.c
+++ b/core/io.c
@@ -1063,8 +1063,7 @@
      return( !noteofflag );
 }
 
-int getaline_fp_eof_new(s, l, fp)  /* end of file -> return 1 */
-char    s[] ; int l ; FILE *fp ;
+int getaline_fp_eof_new( char s[], int l, FILE *fp )  /* end of file -> return 1 */
 {
         int c = 0, i = 0 ;
 		int noteofflag = 0;
@@ -1079,8 +1078,7 @@
 		return( !noteofflag );
 }
 
-int myfgets(s, l, fp)  /* l以上は、行末まで読み飛ばす */
-char    s[] ; int l ; FILE *fp ;
+int myfgets( char s[], int l, FILE *fp )  /* l以上は、行末まで読み飛ばす */
 {
         int     c = 0, i = 0 ;
 
@@ -5505,7 +5503,7 @@
 		}
 	}
 }
-static void showaamtxexample()
+static void showaamtxexample(void)
 {
 	fprintf( stderr, "Format error in aa matrix\n" );
 	fprintf( stderr, "# Example:\n" );
--- a/core/mltaln.h
+++ b/core/mltaln.h
@@ -166,7 +166,7 @@
 extern char rnaprediction;
 
 /* sengen no ichi ha koko dake de ha nai */
-extern void constants();
+extern void constants( int nseq, char **seq );
 extern char **Calignm1();
 extern char **Dalignm1();
 extern char **align0();
@@ -179,24 +179,24 @@
 extern double substitution_nid( char *, char * );
 extern double substitution_hosei( char *, char * );
 extern double ipower( double, int );
-extern double translate_and_Calign();
-extern double A__align();
+extern double translate_and_Calign( char **mseq1, char **mseq2, double *effarr1, double *effarr2, int clus1, int clus2, int alloclen );
+extern double A__align( double **scoringmtx, int penalty, int penalty_ex, char **seq1, char **seq2, double *eff1, double *eff2, int icyc, int jcyc, int alloclen, int constraint, double *impmatch, char *gs1, char *gs2, char *ge1, char *ge2, int *, int, int *, int headgp, int tailgp, int firstmem, int calledby, double ***cpmxchild0, double ***cpmxchild1, double ***cpmxresult, double orieff1, double orieff2 );
 extern double A__align11();
-extern double A__align_gapmap();
-extern double partA__align();
+extern double A__align_gapmap( char **seq1, char **seq2, double *eff1, double *eff2, int icyc, int jcyc, int alloclen, int constraint, double *impmatch, int *gapmap1, int *gapmap2 );
+extern double partA__align( char **seq1, char **seq2, double *eff1, double *eff2, int icyc, int jcyc, int alloclen, int constraint, double *impmatch, int start1, int end1, int start2, int end2, int *gapmap1, int *gapmap2, char *, char *, char *, char *, int *, int, int * );
 extern double L__align11( double **scoringmtx, double scoreoffset, char **seq1, char **seq2, int alloclen, int *off1pt, int *off2pt );
-extern double G__align11();
-extern double Falign();
-extern double Falign_localhom();
+extern double G__align11( double **scoringmtx, char **seq1, char **seq2, int alloclen, int headgp, int tailgp  );
+extern double Falign( int **whichmtx, double ***scoringmatrices, double **scoreingmtx, char  **seq1, char  **seq2, double *eff1, double *eff2, double **eff1s, double **eff2s, int    clus1, int    clus2, int alloclen, int *fftlog, int *, int, int * );
+extern double Falign_localhom( int **which, double ***scoringmatrices, double **scoreingmtx, char  **seq1, char  **seq2, double *eff1, double *eff2, double **eff1s, double **eff2s, int    clus1, int    clus2, int alloclen, int constraint, double *totalimpmatch, int *gapmap1, int *gapmap2, int *chudanpt, int chudanref, int *chudanres );
 extern double Conalign();
 extern double Aalign();
 extern double imp_match_out_sc( int, int );
 extern double part_imp_match_out_sc( int, int );
-extern void ErrorExit();
-extern void cpmx_calc();
+extern void ErrorExit( char *message );
+extern void cpmx_calc( char **seq, double **cpmx, double *eff, int lgth, int clus );
 extern void intergroup_score( char **, char **, double *, double *, int, int, int, double * );
 extern int conjuctionfortbfast();
-extern int fastconjuction();
+extern int fastconjuction( int *memlist, char **seq, char **aseq, double *peff, double *eff, char name[M][B], char aname[M][B], char *d );
 extern char seqcheck( char ** );
 
 typedef struct _LocalHom
--- a/core/mltaln9.c
+++ b/core/mltaln9.c
@@ -15232,7 +15232,7 @@
 		}
 	}
 }
-void FreeCommonIP()
+void FreeCommonIP(void)
 {
 	if( commonIP ) FreeIntMtx( commonIP ); 
 	commonIP = NULL;
--- a/core/version.c
+++ b/core/version.c
@@ -1,6 +1,6 @@
 #include "mltaln.h"
 
-int main()
+int main(void)
 {
 	fprintf( stdout, VERSION );
 	return( 0 );