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-rw-r--r--argp/argp.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/argp/argp.h b/argp/argp.h
index 07adec1895..9d4d26370b 100644
--- a/argp/argp.h
+++ b/argp/argp.h
@@ -554,7 +554,8 @@ __NTH (__option_is_end (const struct argp_option *__opt))
 # endif
 #endif /* Use extern inlines.  */
 
-#ifdef __LDBL_COMPAT
+#include <bits/floatn.h>
+#if defined __LDBL_COMPAT || __LONG_DOUBLE_USES_FLOAT128 == 1
 # include <bits/argp-ldbl.h>
 #endif