Use GNU macro (v)asprintf only if _GNU_SOURCE is defined

1 files changed, 5 insertions, 0 deletions

diff --git a/src/shared.h b/src/shared.h
index b10462e..684fb9f 100644
--- a/src/shared.h
+++ b/src/shared.h
@@ -15,4 +15,9 @@ void* xcalloc(size_t nmemb, size_t size);
 // `reallocarray()` with error checking. Calls `error()` or `abort()` on error, depending on the value of `___VXGG___XCALLOC_EXIT_ON_ERROR___`
 void* xreallocarray(void *ptr, size_t nmemb, size_t size);
 
+#if !defined _GNU_SOURCE
+int vasprintf(char **str, const char *format, va_list ap);
+int asprintf(char **str, const char *format, ...);
+#endif
+
 #endif
\ No newline at end of file