Depend on vsnprintf

diff --git a/modules/argp b/modules/argp
index 7650cb7..6ac61f9 100644 (file)
--- a/modules/argp
+++ b/modules/argp
@@ -26,6 +26,7 @@ strndup
 restrict
 strcase
 extensions
+vsnprintf
 
 configure.ac:
 gl_ARGP