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[gnulib.git] / lib / math.in.h

diff --git a/lib/math.in.h b/lib/math.in.h
index 6e1b9a2..8d8cdc1 100644 (file)
--- a/lib/math.in.h
+++ b/lib/math.in.h
@@ -1,6 +1,6 @@
 /* A GNU-like <math.h>.
 
-   Copyright (C) 2002-2003, 2007-2008 Free Software Foundation, Inc.
+   Copyright (C) 2002-2003, 2007-2009 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -22,7 +22,7 @@
 #endif
 
 /* The include_next requires a split double-inclusion guard.  */
-#@INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ @NEXT_MATH_H@
+#@INCLUDE_NEXT_AS_FIRST_DIRECTIVE@ @NEXT_AS_FIRST_DIRECTIVE_MATH_H@
 
 #ifndef _GL_MATH_H
 #define _GL_MATH_H
@@ -518,7 +518,8 @@ extern int gl_signbitf (float arg);
 extern int gl_signbitd (double arg);
 extern int gl_signbitl (long double arg);
 #  if __GNUC__ >= 2 && !__STRICT_ANSI__
-#   if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT
+#   if defined FLT_SIGNBIT_WORD && defined FLT_SIGNBIT_BIT && !defined gl_signbitf
+#    define gl_signbitf_OPTIMIZED_MACRO
 #    define gl_signbitf(arg) \
        ({ union { float _value;                                                \
                   unsigned int _word[(sizeof (float) + sizeof (unsigned int) - 1) / sizeof (unsigned int)]; \
@@ -527,7 +528,8 @@ extern int gl_signbitl (long double arg);
           (_m._word[FLT_SIGNBIT_WORD] >> FLT_SIGNBIT_BIT) & 1;         \
         })
 #   endif
-#   if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT
+#   if defined DBL_SIGNBIT_WORD && defined DBL_SIGNBIT_BIT && !defined gl_signbitd
+#    define gl_signbitd_OPTIMIZED_MACRO
 #    define gl_signbitd(arg) \
        ({ union { double _value;                                               \
                   unsigned int _word[(sizeof (double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)]; \
@@ -536,7 +538,8 @@ extern int gl_signbitl (long double arg);
           (_m._word[DBL_SIGNBIT_WORD] >> DBL_SIGNBIT_BIT) & 1;         \
         })
 #   endif
-#   if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT
+#   if defined LDBL_SIGNBIT_WORD && defined LDBL_SIGNBIT_BIT && !defined gl_signbitl
+#    define gl_signbitl_OPTIMIZED_MACRO
 #    define gl_signbitl(arg) \
        ({ union { long double _value;                                  \
                   unsigned int _word[(sizeof (long double) + sizeof (unsigned int) - 1) / sizeof (unsigned int)]; \