3 files changed, 111 insertions, 6 deletions
diff --git a/sysdeps/alpha/fpu/fenvbits.h b/sysdeps/alpha/fpu/bits/fenv.h
index 02414e4c30..7cb0e3e543 100644
--- a/sysdeps/alpha/fpu/fenvbits.h
+++ b/sysdeps/alpha/fpu/bits/fenv.h
@@ -17,10 +17,10 @@
    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
    Boston, MA 02111-1307, USA.  */
 
-/* This file should never be included directly.  */
+#ifndef _FENV_H
+#error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
 
-#ifndef _FENVBITS_H
-#define _FENVBITS_H	1
 
 /* Define the bits representing the exception.
 
@@ -102,6 +102,3 @@ typedef unsigned long fenv_t;
 /* The system calls to talk to the kernel's FP code.  */
 extern unsigned long __ieee_get_fp_control(void);
 extern void __ieee_set_fp_control(unsigned long);
-
-
-#endif /* fenvbits.h */
diff --git a/sysdeps/alpha/fpu/bits/mathdef.h b/sysdeps/alpha/fpu/bits/mathdef.h
new file mode 100644
index 0000000000..0bc9c94ecc
--- /dev/null
+++ b/sysdeps/alpha/fpu/bits/mathdef.h
@@ -0,0 +1,64 @@
+/* Copyright (C) 1997 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 Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _MATH_H
+#error "Never use <bits/mathdef.h> directly; include <math.h> instead"
+#endif
+
+/* FIXME! This file describes properties of the compiler, not the machine;
+   it should not be part of libc!  */
+
+#ifdef __GNUC__
+#if __STDC__ == 1
+
+/* In GNU or ANSI mode, gcc leaves `float' expressions as-is.  */
+typedef float float_t;
+typedef double double_t;
+
+/* Signal that types stay as they were declared.  */
+#define FLT_EVAL_METHOD	0
+
+/* Define `INFINITY' as value of type `float_t'.  */
+#define INFINITY	HUGE_VALF
+
+#else 
+
+/* For `gcc -traditional', `float' expressions are evaluated as `double'. */
+typedef double float_t;
+typedef double double_t;
+
+/* Signal that both types are `double'.  */
+#define FLT_EVAL_METHOD	1
+
+/* Define `INFINITY' as value of type `float_t'.  */
+#define INFINITY	HUGE_VAL
+
+#endif
+#else
+
+/* Wild guess at types for float_t and double_t. */
+typedef double float_t;
+typedef double double_t;
+
+/* Strange compiler, we don't know how it works.  */
+#define FLT_EVAL_METHOD	-1
+
+/* Define `INFINITY' as value of type `float_t'.  */
+#define INFINITY	HUGE_VAL
+
+#endif
diff --git a/sysdeps/alpha/fpu/bits/mathinline.h b/sysdeps/alpha/fpu/bits/mathinline.h
new file mode 100644
index 0000000000..0f76027317
--- /dev/null
+++ b/sysdeps/alpha/fpu/bits/mathinline.h
@@ -0,0 +1,44 @@
+/* Inline math functions for Alpha.
+   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by David Mosberger-Tang.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#if defined (__GNUC__) && !defined (__NO_MATH_INLINES)
+
+extern __inline double
+__copysign (double __x, double __y)
+{
+  __asm ("cpys %1, %2, %0" : "=f" (__x) : "f" (__y), "f" (__x));
+  return __x;
+}
+
+extern __inline double
+fabs (double __x)
+{
+  __asm ("cpys $f31, %1, %0" : "=f" (__x) : "f" (__x));
+  return __x;
+}
+
+extern __inline double
+atan (double __x)
+{
+  extern double __atan2 (double, double);
+  return __atan2 (__x, 1.0);
+}
+
+#endif