[PATCH] ieeefp.c: Auto-detect _LDBL_EQ_DBL

[Keith Packard]

Make configuring the library a bit simpler

Signed-off-by: Keith Packard <keithp@keithp.com>
---
This seems simpler than computing this value during configure, and
will make using meson easier in the future.

 newlib/libc/include/ieeefp.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/newlib/libc/include/ieeefp.h b/newlib/libc/include/ieeefp.h
index 2d6421a4c..71749ccc0 100644
--- a/newlib/libc/include/ieeefp.h
+++ b/newlib/libc/include/ieeefp.h
@@ -143,6 +143,11 @@ typedef union
 
 #endif /* __IEEE_LITTLE_ENDIAN */
 
+#if LDBL_MANT_DIG == DBL_MANT_DIG && LDBL_MIN_EXP == DBL_MIN_EXP && \
+    LDBL_MAX_EXP == DBL_MAX_EXP
+#define _LDBL_EQ_DBL
+#endif
+
 #ifndef _LDBL_EQ_DBL
 
 #ifndef LDBL_MANT_DIG
-- 
2.19.0.rc2