| diff --git a/tinycbor/open_memstream.c b/tinycbor/open_memstream.c |
| index 3365378..37a0d08 100644 |
| --- a/tinycbor/open_memstream.c |
| +++ b/tinycbor/open_memstream.c |
| @@ -32,13 +32,13 @@ |
| #include <stdlib.h> |
| #include <string.h> |
| |
| -#if defined(__unix__) || defined(__APPLE__) |
| +#if defined(__unix__) || defined(__APPLE__) || defined(__NuttX__) |
| # include <unistd.h> |
| #endif |
| -#ifdef __APPLE__ |
| +#if defined(__APPLE__) |
| typedef int RetType; |
| typedef int LenType; |
| -#elif __linux__ |
| +#elif defined(__linux__) || defined(__NuttX__) |
| typedef ssize_t RetType; |
| typedef size_t LenType; |
| #else |
| @@ -99,9 +99,9 @@ FILE *open_memstream(char **bufptr, size_t *lenptr) |
| *bufptr = NULL; |
| *lenptr = 0; |
| |
| -#ifdef __APPLE__ |
| +#if defined(__APPLE__) |
| return funopen(b, NULL, write_to_buffer, NULL, close_buffer); |
| -#elif __linux__ |
| +#elif defined(__linux__) || defined(__NuttX__) |
| static const cookie_io_functions_t vtable = { |
| NULL, |
| write_to_buffer, |
