[PATCH] Add missing prototypes to function declarations

With Clang 15+ compiler -Wstrict-prototypes is triggering warnings which
are turned into errors with -Werror, this fixes the problem by adding
missing prototypes

Fixes errors like
| log.c:134:24: error: a function declaration without a prototype is deprecated in all versions of C [-Werror,-Wstrict-prototypes]
| static void syslog_init()
|                        ^
|                         void

---
 checksum.c       | 2 +-
 exclude.c        | 2 +-
 hlink.c          | 2 +-
 lib/compat.c     | 1 +
 lib/pool_alloc.c | 2 +-
 log.c            | 2 +-
 main.c           | 2 +-
 syscall.c        | 4 ++--
 zlib/crc32.c     | 2 +-
 zlib/trees.c     | 2 +-
 zlib/zutil.c     | 4 ++--
 11 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/checksum.c b/checksum.c
index fb8c0a0..174c28c 100644
--- a/checksum.c
+++ b/checksum.c
@@ -629,7 +629,7 @@ int sum_end(char *sum)
 	return csum_len_for_type(cursum_type, 0);
 }
 
-void init_checksum_choices()
+void init_checksum_choices(void)
 {
 #ifdef SUPPORT_XXH3
 	char buf[32816];
diff --git a/exclude.c b/exclude.c
index adc82e2..79f5a82 100644
--- a/exclude.c
+++ b/exclude.c
@@ -358,7 +358,7 @@ void implied_include_partial_string(const char *s_start, const char *s_end)
 	memcpy(partial_string_buf, s_start, partial_string_len);
 }
 
-void free_implied_include_partial_string()
+void free_implied_include_partial_string(void)
 {
 	if (partial_string_buf) {
 		free(partial_string_buf);
diff --git a/hlink.c b/hlink.c
index 66810a3..aea142b 100644
--- a/hlink.c
+++ b/hlink.c
@@ -117,7 +117,7 @@ static void match_gnums(int32 *ndx_list, int ndx_count)
 	struct ht_int32_node *node = NULL;
 	int32 gnum, gnum_next;
 
-	qsort(ndx_list, ndx_count, sizeof ndx_list[0], (int (*)()) hlink_compare_gnum);
+	qsort(ndx_list, ndx_count, sizeof ndx_list[0], (int (*)(const void *, const void *)) hlink_compare_gnum);
 
 	for (from = 0; from < ndx_count; from++) {
 		file = hlink_flist->sorted[ndx_list[from]];
diff --git a/lib/compat.c b/lib/compat.c
index 513d79b..89b337e 100644
--- a/lib/compat.c
+++ b/lib/compat.c
@@ -19,6 +19,7 @@
  * with this program; if not, visit the http://fsf.org website.
  */
 
+#include <sys/time.h>
 #include "rsync.h"
 #include "itypes.h"
 
diff --git a/lib/pool_alloc.c b/lib/pool_alloc.c
index a1a7245..4eae062 100644
--- a/lib/pool_alloc.c
+++ b/lib/pool_alloc.c
@@ -9,7 +9,7 @@ struct alloc_pool
 	size_t			size;		/* extent size		*/
 	size_t			quantum;	/* allocation quantum	*/
 	struct pool_extent	*extents;	/* top extent is "live" */
-	void			(*bomb)();	/* called if malloc fails */
+	void			(*bomb)(const char *, const char *, int);	/* called if malloc fails */
 	int			flags;
 
 	/* statistical data */
diff --git a/log.c b/log.c
index 44344e2..991e359 100644
--- a/log.c
+++ b/log.c
@@ -131,7 +131,7 @@ static void logit(int priority, const char *buf)
 	}
 }
 
-static void syslog_init()
+static void syslog_init(void)
 {
 	int options = LOG_PID;
 
diff --git a/main.c b/main.c
index 9ebfbea..affa244 100644
--- a/main.c
+++ b/main.c
@@ -244,7 +244,7 @@ void read_del_stats(int f)
 	stats.deleted_files += stats.deleted_specials = read_varint(f);
 }
 
-static void become_copy_as_user()
+static void become_copy_as_user(void)
 {
 	char *gname;
 	uid_t uid;
diff --git a/syscall.c b/syscall.c
index d92074a..92ca86d 100644
--- a/syscall.c
+++ b/syscall.c
@@ -389,9 +389,9 @@ OFF_T do_lseek(int fd, OFF_T offset, int whence)
 {
 #ifdef HAVE_LSEEK64
 #if !SIZEOF_OFF64_T
-	OFF_T lseek64();
+	OFF_T lseek64(int fd, OFF_T offset, int whence);
 #else
-	off64_t lseek64();
+	off64_t lseek64(int fd, off64_t offset, int whence);
 #endif
 	return lseek64(fd, offset, whence);
 #else
diff --git a/zlib/crc32.c b/zlib/crc32.c
index 05733f4..50c6c02 100644
--- a/zlib/crc32.c
+++ b/zlib/crc32.c
@@ -187,7 +187,7 @@ local void write_table(out, table)
 /* =========================================================================
  * This function can be used by asm versions of crc32()
  */
-const z_crc_t FAR * ZEXPORT get_crc_table()
+const z_crc_t FAR * ZEXPORT get_crc_table(void)
 {
 #ifdef DYNAMIC_CRC_TABLE
     if (crc_table_empty)
diff --git a/zlib/trees.c b/zlib/trees.c
index 9c66770..0d9047e 100644
--- a/zlib/trees.c
+++ b/zlib/trees.c
@@ -231,7 +231,7 @@ local void send_bits(s, value, length)
 /* ===========================================================================
  * Initialize the various 'constant' tables.
  */
-local void tr_static_init()
+local void tr_static_init(void)
 {
 #if defined(GEN_TREES_H) || !defined(STDC)
     static int static_init_done = 0;
diff --git a/zlib/zutil.c b/zlib/zutil.c
index bbba7b2..61f8dc9 100644
--- a/zlib/zutil.c
+++ b/zlib/zutil.c
@@ -27,12 +27,12 @@ z_const char * const z_errmsg[10] = {
 ""};
 
 
-const char * ZEXPORT zlibVersion()
+const char * ZEXPORT zlibVersion(void)
 {
     return ZLIB_VERSION;
 }
 
-uLong ZEXPORT zlibCompileFlags()
+uLong ZEXPORT zlibCompileFlags(void)
 {
     uLong flags;
 
-- 
2.37.2


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