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-rw-r--r--libio/_G_config.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/libio/_G_config.h b/libio/_G_config.h
index 5fa7300bf7..4b47e886a5 100644
--- a/libio/_G_config.h
+++ b/libio/_G_config.h
@@ -33,6 +33,7 @@ typedef unsigned int _G_uint32_t __attribute__ ((__mode__ (__SI__)));
 
 #define _G_HAVE_PRINTF_FP 1
 #define _G_HAVE_MMAP 1
+#define _G_HAVE_LONG_DOUBLE_IO 1
 
 /* This is defined by <statbuf.h> if `st_blksize' exists.  */
 #define _G_HAVE_ST_BLKSIZE defined (_STATBUF_ST_BLKSIZE)