diff options
Diffstat (limited to 'src/include/console/vtxprintf.h')
| -rw-r--r-- | src/include/console/vtxprintf.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/include/console/vtxprintf.h b/src/include/console/vtxprintf.h index c949c12115..f7d58bbd6a 100644 --- a/src/include/console/vtxprintf.h +++ b/src/include/console/vtxprintf.h @@ -20,7 +20,19 @@ #ifndef __CONSOLE_VTXPRINTF_H #define __CONSOLE_VTXPRINTF_H +/* With GCC we use -nostdinc -ffreestanding to keep out system includes. + * Unfortunately this also gets us rid of the _compiler_ includes, like + * stdarg.h. To work around the issue, we define varargs directly here. + * On LLVM we can still just include stdarg.h. + */ +#ifdef __GNUC__ +#define va_start(v,l) __builtin_va_start(v,l) +#define va_end(v) __builtin_va_end(v) +#define va_arg(v,l) __builtin_va_arg(v,l) +typedef __builtin_va_list va_list; +#else #include <stdarg.h> +#endif int vtxprintf(void (*tx_byte)(unsigned char byte), const char *fmt, va_list args); |