41 lines
1.0 KiB
Plaintext
41 lines
1.0 KiB
Plaintext
--- src/lib/libast/sfio/sfcvt.c
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+++ src/lib/libast/sfio/sfcvt.c 2008-12-17 11:56:17.000000000 +0000
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@@ -56,6 +56,16 @@ static char *Zero = "0";
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#define _lib_signbit 1
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#endif
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+#if defined(__ia64__) && defined(signbit)
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+# if defined __GNUC__ && __GNUC__ >= 4
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+# define __signbitl(f) __builtin_signbitl(f)
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+# else
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+# if _lib_copysignl
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+# define __signbitl(f) (int)(copysignl(1.0,(f))<0.0)
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+# endif
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+# endif
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+#endif
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+
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#if ! _lib_signbit
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#if ! _ast_fltmax_double
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static int neg0ld(Sfdouble_t f)
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--- src/cmd/ksh93/features/math.sh
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+++ src/cmd/ksh93/features/math.sh 2012-01-20 14:23:37.587145847 +0000
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@@ -130,6 +130,18 @@ echo "#include <math.h>"
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case $_hdr_ieeefp in
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1) echo "#include <ieeefp.h>" ;;
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esac
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+cat <<!
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+#if defined(__ia64__) && defined(signbit)
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+# if defined __GNUC__ && __GNUC__ >= 4
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+# define __signbitl(f) __builtin_signbitl(f)
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+# else
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+# include <ast_float.h>
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+# if _lib_copysignl
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+# define __signbitl(f) (int)(copysignl(1.0,(f))<0.0)
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+# endif
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+# endif
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+#endif
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+!
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echo
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: generate the intercept functions and table entries
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