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-rw-r--r--sysdeps/ieee754/ldbl-128/bits/long-double.h1
-rw-r--r--sysdeps/ieee754/ldbl-128ibm-compat/bits/long-double.h29
-rw-r--r--sysdeps/ieee754/ldbl-96/bits/long-double.h1
-rw-r--r--sysdeps/ieee754/ldbl-opt/bits/long-double.h1
4 files changed, 32 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128/bits/long-double.h b/sysdeps/ieee754/ldbl-128/bits/long-double.h
index eac89e233a..17283d3065 100644
--- a/sysdeps/ieee754/ldbl-128/bits/long-double.h
+++ b/sysdeps/ieee754/ldbl-128/bits/long-double.h
@@ -18,3 +18,4 @@
/* long double is distinct from double, so there is nothing to
define here. */
+#define __LONG_DOUBLE_USES_FLOAT128 0
diff --git a/sysdeps/ieee754/ldbl-128ibm-compat/bits/long-double.h b/sysdeps/ieee754/ldbl-128ibm-compat/bits/long-double.h
new file mode 100644
index 0000000000..02d1b40169
--- /dev/null
+++ b/sysdeps/ieee754/ldbl-128ibm-compat/bits/long-double.h
@@ -0,0 +1,29 @@
+/* Properties of long double type. ldbl-opt version.
+ Copyright (C) 2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef __NO_LONG_DOUBLE_MATH
+# define __LONG_DOUBLE_MATH_OPTIONAL 1
+# ifndef __LONG_DOUBLE_128__
+# define __NO_LONG_DOUBLE_MATH 1
+# endif
+#endif
+/* On platforms that reuse the _Float128 implementation for IEEE long
+ double, access to the correct long double functions is selected based
+ on the long double mode being used during the compilation. On
+ powerpc64le, this is true when -mabi=ieeelongdouble is in use. */
+#define __LONG_DOUBLE_USES_FLOAT128 (__LDBL_MANT_DIG__ == 113)
diff --git a/sysdeps/ieee754/ldbl-96/bits/long-double.h b/sysdeps/ieee754/ldbl-96/bits/long-double.h
index 72d15da6c8..e55227b69a 100644
--- a/sysdeps/ieee754/ldbl-96/bits/long-double.h
+++ b/sysdeps/ieee754/ldbl-96/bits/long-double.h
@@ -18,3 +18,4 @@
/* long double is distinct from double, so there is nothing to
define here. */
+#define __LONG_DOUBLE_USES_FLOAT128 0
diff --git a/sysdeps/ieee754/ldbl-opt/bits/long-double.h b/sysdeps/ieee754/ldbl-opt/bits/long-double.h
index 1e8fb5886e..8fa37a0e33 100644
--- a/sysdeps/ieee754/ldbl-opt/bits/long-double.h
+++ b/sysdeps/ieee754/ldbl-opt/bits/long-double.h
@@ -22,3 +22,4 @@
# define __NO_LONG_DOUBLE_MATH 1
# endif
#endif
+#define __LONG_DOUBLE_USES_FLOAT128 0