math: Enable <bits/math-finite.h> sysdeps override

sysdeps/ia64/fpu/bits/math-finite.h exists and will be installed on
ia64, but during the build, the default math/bits/math-finite.h file
is used, which is wrong.

Fixes commit 0ac5ae2335292908f39031b1ea9fe8edce433c0f ("Optimize
libm").

1 files changed, 197 insertions, 0 deletions

diff --git a/bits/math-finite.h b/bits/math-finite.h
new file mode 100644
index 0000000..6141c12
--- /dev/null
+++ b/bits/math-finite.h
@@ -0,0 +1,197 @@
+/* Entry points to finite-math-only compiler runs.
+   Copyright (C) 2011-2019 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 as 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
+   <http://www.gnu.org/licenses/>.  */
+
+#ifndef _MATH_H
+# error "Never use <bits/math-finite.h> directly; include <math.h> instead."
+#endif
+
+#define __REDIRFROM(...) __REDIRFROM_X(__VA_ARGS__)
+
+#define __REDIRTO(...) __REDIRTO_X(__VA_ARGS__)
+
+#define __MATH_REDIRCALL_X(from, args, to) \
+  extern _Mdouble_ __REDIRECT_NTH (from, args, to)
+#define __MATH_REDIRCALL(function, reentrant, args) \
+  __MATH_REDIRCALL_X \
+   (__REDIRFROM (function, reentrant), args, \
+    __REDIRTO (function, reentrant))
+#define __MATH_REDIRCALL_2(from, reentrant, args, to) \
+  __MATH_REDIRCALL_X \
+   (__REDIRFROM (from, reentrant), args, \
+    __REDIRTO (to, reentrant))
+
+#define __MATH_REDIRCALL_INTERNAL(function, reentrant, args) \
+  __MATH_REDIRCALL_X \
+   (__REDIRFROM (__CONCAT (__, function), \
+		 __CONCAT (reentrant, _finite)), \
+    args, __REDIRTO (function, _r))
+
+
+/* acos.  */
+__MATH_REDIRCALL (acos, , (_Mdouble_));
+
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+/* acosh.  */
+__MATH_REDIRCALL (acosh, , (_Mdouble_));
+#endif
+
+/* asin.  */
+__MATH_REDIRCALL (asin, , (_Mdouble_));
+
+/* atan2.  */
+__MATH_REDIRCALL (atan2, , (_Mdouble_, _Mdouble_));
+
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+/* atanh.  */
+__MATH_REDIRCALL (atanh, , (_Mdouble_));
+#endif
+
+/* cosh.  */
+__MATH_REDIRCALL (cosh, , (_Mdouble_));
+
+/* exp.  */
+__MATH_REDIRCALL (exp, , (_Mdouble_));
+
+#if __GLIBC_USE (IEC_60559_FUNCS_EXT)
+/* exp10.  */
+__MATH_REDIRCALL (exp10, , (_Mdouble_));
+#endif
+
+#ifdef __USE_ISOC99
+/* exp2.  */
+__MATH_REDIRCALL (exp2, , (_Mdouble_));
+#endif
+
+/* fmod.  */
+__MATH_REDIRCALL (fmod, , (_Mdouble_, _Mdouble_));
+
+#if defined __USE_XOPEN || defined __USE_ISOC99
+/* hypot.  */
+__MATH_REDIRCALL (hypot, , (_Mdouble_, _Mdouble_));
+#endif
+
+#if (__MATH_DECLARING_DOUBLE && (defined __USE_MISC || defined __USE_XOPEN)) \
+    || (!__MATH_DECLARING_DOUBLE && defined __USE_MISC)
+/* j0.  */
+__MATH_REDIRCALL (j0, , (_Mdouble_));
+
+/* y0.  */
+__MATH_REDIRCALL (y0, , (_Mdouble_));
+
+/* j1.  */
+__MATH_REDIRCALL (j1, , (_Mdouble_));
+
+/* y1.  */
+__MATH_REDIRCALL (y1, , (_Mdouble_));
+
+/* jn.  */
+__MATH_REDIRCALL (jn, , (int, _Mdouble_));
+
+/* yn.  */
+__MATH_REDIRCALL (yn, , (int, _Mdouble_));
+#endif
+
+#ifdef __USE_MISC
+/* lgamma_r.  */
+__MATH_REDIRCALL (lgamma, _r, (_Mdouble_, int *));
+#endif
+
+/* Redirect __lgammal_r_finite to __lgamma_r_finite when __NO_LONG_DOUBLE_MATH
+   is set and to itself otherwise.  It also redirects __lgamma_r_finite and
+   __lgammaf_r_finite to themselves.  */
+__MATH_REDIRCALL_INTERNAL (lgamma, _r, (_Mdouble_, int *));
+
+#if ((defined __USE_XOPEN || defined __USE_ISOC99) \
+     && defined __extern_always_inline)
+/* lgamma.  */
+__extern_always_inline _Mdouble_
+__NTH (__REDIRFROM (lgamma, ) (_Mdouble_ __d))
+{
+# if defined __USE_MISC || defined __USE_XOPEN
+  return __REDIRTO (lgamma, _r) (__d, &signgam);
+# else
+  int __local_signgam = 0;
+  return __REDIRTO (lgamma, _r) (__d, &__local_signgam);
+# endif
+}
+#endif
+
+#if ((defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_XOPEN2K)) \
+     && defined __extern_always_inline) && !__MATH_DECLARING_FLOATN
+/* gamma.  */
+__extern_always_inline _Mdouble_
+__NTH (__REDIRFROM (gamma, ) (_Mdouble_ __d))
+{
+  return __REDIRTO (lgamma, _r) (__d, &signgam);
+}
+#endif
+
+/* log.  */
+__MATH_REDIRCALL (log, , (_Mdouble_));
+
+/* log10.  */
+__MATH_REDIRCALL (log10, , (_Mdouble_));
+
+#ifdef __USE_ISOC99
+/* log2.  */
+__MATH_REDIRCALL (log2, , (_Mdouble_));
+#endif
+
+/* pow.  */
+__MATH_REDIRCALL (pow, , (_Mdouble_, _Mdouble_));
+
+#if defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99
+/* remainder.  */
+__MATH_REDIRCALL (remainder, , (_Mdouble_, _Mdouble_));
+#endif
+
+#if ((__MATH_DECLARING_DOUBLE \
+      && (defined __USE_MISC \
+	  || (defined __USE_XOPEN_EXTENDED && !defined __USE_XOPEN2K8))) \
+     || (!defined __MATH_DECLARE_LDOUBLE && defined __USE_MISC)) \
+    && !__MATH_DECLARING_FLOATN
+/* scalb.  */
+__MATH_REDIRCALL (scalb, , (_Mdouble_, _Mdouble_));
+#endif
+
+/* sinh.  */
+__MATH_REDIRCALL (sinh, , (_Mdouble_));
+
+/* sqrt.  */
+__MATH_REDIRCALL (sqrt, , (_Mdouble_));
+
+#if defined __USE_ISOC99 && defined __extern_always_inline
+/* tgamma.  */
+extern _Mdouble_
+__REDIRFROM (__gamma, _r_finite) (_Mdouble_, int *);
+
+__extern_always_inline _Mdouble_
+__NTH (__REDIRFROM (tgamma, ) (_Mdouble_ __d))
+{
+  int __local_signgam = 0;
+  _Mdouble_ __res = __REDIRTO (gamma, _r) (__d, &__local_signgam);
+  return __local_signgam < 0 ? -__res : __res;
+}
+#endif
+
+#undef __REDIRFROM
+#undef __REDIRTO
+#undef __MATH_REDIRCALL
+#undef __MATH_REDIRCALL_2
+#undef __MATH_REDIRCALL_INTERNAL
+#undef __MATH_REDIRCALL_X