partially fix FreeBSD compatibility

meson.build

@@ -22,6 +22,7 @@ srcs = [
 ]
 
 c_args = [
+    '-Wstrict-prototypes',
     '-pthread',
     '-D_GNU_SOURCE',
     '-DVERSION="' + meson.project_version() + '"'

src/cache.h

@@ -95,12 +95,12 @@ void CacheSystem_init(const char *path, int url_supplied);
 /**
  * \brief clear the content of the cache directory
  */
-void CacheSystem_clear();
+void CacheSystem_clear(void);
 
 /**
  * \brief Return the fullpath to the cache directory
  */
-char *CacheSystem_get_cache_dir();
+char *CacheSystem_get_cache_dir(void);
 
 /**
  * \brief Create directories under the cache directory structure, if they do
@@ -153,4 +153,4 @@ void Cache_delete(const char *fn);
  */
 long Cache_read(Cache *cf, char *const output_buf, const off_t len,
                 const off_t offset_start);
-#endif
+#endif

src/log.h

@@ -25,7 +25,7 @@ typedef enum {
 /**
  * \brief Get the log level from the environment.
  */
-int log_level_init();
+int log_level_init(void);
 
 /**
  * \brief Log printf
@@ -44,6 +44,6 @@ void log_printf(LogType type, const char *file, const char *func, int line,
 /**
  * \brief Print the version information for HTTPDirFS
  */
-void print_version();
+void print_version(void);
 
-#endif
+#endif

src/main.c

@@ -9,7 +9,7 @@
 
 void add_arg(char ***fuse_argv_ptr, int *fuse_argc, char *opt_string);
 static void print_help(char *program_name, int long_help);
-static void print_long_help();
+static void print_long_help(void);
 static int
 parse_arg_list(int argc, char **argv, char ***fuse_argv, int *fuse_argc);
 void parse_config_file(char ***argv, int *argc);
@@ -431,4 +431,4 @@ HTTPDirFS options:\n\
                             using the insecure username / hex encoded password\n\
                             scheme\n\
 \n");
-}
+}

src/memcache.c

@@ -25,4 +25,4 @@ size_t write_memory_callback(void *recv_data, size_t size, size_t nmemb,
     ts->data[ts->curr_size] = '\0';
 
     return recv_size;
-}
+}

src/memcache.h

@@ -32,4 +32,4 @@ struct TransferStruct {
 size_t write_memory_callback(void *contents, size_t size, size_t nmemb,
                              void *userp);
 
-#endif
+#endif