sapi/fpm: Fix some [-Wsign-compare] warnings

Author: Girgias

sapi/fpm/fpm/fpm_main.c

@@ -1138,9 +1138,9 @@ static void init_request_info(void)
 							 * we have to play the game of hide and seek to figure
 							 * out what SCRIPT_NAME should be
 							 */
-							int ptlen = strlen(pt);
-							int slen = len - ptlen;
-							int pilen = env_path_info ? strlen(env_path_info) : 0;
+							size_t ptlen = strlen(pt);
+							size_t slen = len - ptlen;
+							size_t pilen = env_path_info ? strlen(env_path_info) : 0;
 							int tflag = 0;
 							char *path_info;
 							if (apache_was_here) {

sapi/fpm/fpm/fpm_scoreboard.c

@@ -261,7 +261,6 @@ struct fpm_scoreboard_s *fpm_scoreboard_copy(struct fpm_scoreboard_s *scoreboard
 	struct fpm_scoreboard_s *scoreboard_copy;
 	struct fpm_scoreboard_proc_s *scoreboard_proc_p;
 	size_t scoreboard_size, scoreboard_nprocs_size;
-	int i;
 	void *mem;
 
 	if (!scoreboard) {
@@ -296,7 +295,7 @@ struct fpm_scoreboard_s *fpm_scoreboard_copy(struct fpm_scoreboard_s *scoreboard
 	if (copy_procs) {
 		mem += scoreboard_size;
 
-		for (i = 0; i < scoreboard->nprocs; i++, mem += sizeof(struct fpm_scoreboard_proc_s)) {
+		for (unsigned int i = 0; i < scoreboard->nprocs; i++, mem += sizeof(struct fpm_scoreboard_proc_s)) {
 			scoreboard_proc_p = fpm_scoreboard_proc_acquire(scoreboard, i, FPM_SCOREBOARD_LOCK_HANG);
 			scoreboard_copy->procs[i] = *scoreboard_proc_p;
 			fpm_scoreboard_proc_release(scoreboard_proc_p);

sapi/fpm/fpm/fpm_status.c

@@ -52,7 +52,7 @@ int fpm_status_export_to_zval(zval *status)
 	time_t now_epoch;
 	struct timeval duration, now;
 	double cpu;
-	int i;
+	unsigned int i;
 
 	scoreboard_p = fpm_scoreboard_acquire(NULL, 1);
 	if (!scoreboard_p) {