- fixed a bunch of Linux and macOS compilation errors

src/common/filesystem/source/fs_findfile.cpp

@@ -33,6 +33,7 @@
 */
 
 #include "fs_findfile.h"
+#include <string.h>
 #include <vector>
 
 namespace FileSys {
@@ -175,7 +176,7 @@ static int FS_FindAttr(findstate_t *const fileinfo)
 std::string FS_FullPath(const char* directory)
 {
 	// todo
-	return directory
+	return directory;
 }
 
 static size_t FS_GetFileSize(findstate_t* handle, const char* pathname)