+2011-10-10 Bruno Haible <bruno@clisp.org>
+
+ sinl: Simplify for platforms where 'long double' == 'double'.
+ * lib/sinl.c (sinl) [HAVE_SAME_LONG_DOUBLE_AS_DOUBLE]: New alternative
+ implementation.
+ * m4/sinl.m4 (gl_FUNC_SINL): Require gl_LONG_DOUBLE_VS_DOUBLE.
+ Determine SINL_LIBM according to HAVE_SAME_LONG_DOUBLE_AS_DOUBLE.
+ * modules/sinl (Depends-on): Add sin. Update conditions.
+ (configure.ac): Don't compile sincosl.c and trigl.c if
+ HAVE_SAME_LONG_DOUBLE_AS_DOUBLE.
+
2011-10-10 Bruno Haible <bruno@clisp.org>
logl: Simplify for platforms where 'long double' == 'double'.
-# sinl.m4 serial 5
+# sinl.m4 serial 6
dnl Copyright (C) 2010-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_DEFUN([gl_FUNC_SINL],
[
AC_REQUIRE([gl_MATH_H_DEFAULTS])
+ AC_REQUIRE([gl_LONG_DOUBLE_VS_DOUBLE])
+
dnl Persuade glibc <math.h> to declare sinl().
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
HAVE_DECL_SINL=0
HAVE_SINL=0
dnl Find libraries needed to link lib/sinl.c, lib/sincosl.c, lib/trigl.c.
- AC_REQUIRE([gl_FUNC_ISNANL])
- AC_REQUIRE([gl_FUNC_FLOOR])
- AC_REQUIRE([gl_FUNC_FLOORL])
- dnl Append $ISNANL_LIBM to SINL_LIBM, avoiding gratuitous duplicates.
- case " $SINL_LIBM " in
- *" $ISNANL_LIBM "*) ;;
- *) SINL_LIBM="$SINL_LIBM $ISNANL_LIBM" ;;
- esac
- dnl Append $FLOOR_LIBM to SINL_LIBM, avoiding gratuitous duplicates.
- case " $SINL_LIBM " in
- *" $FLOOR_LIBM "*) ;;
- *) SINL_LIBM="$SINL_LIBM $FLOOR_LIBM" ;;
- esac
- dnl Append $FLOORL_LIBM to SINL_LIBM, avoiding gratuitous duplicates.
- case " $SINL_LIBM " in
- *" $FLOORL_LIBM "*) ;;
- *) SINL_LIBM="$SINL_LIBM $FLOORL_LIBM" ;;
- esac
+ if test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1; then
+ AC_REQUIRE([gl_FUNC_SIN])
+ SINL_LIBM="$SIN_LIBM"
+ else
+ AC_REQUIRE([gl_FUNC_ISNANL])
+ AC_REQUIRE([gl_FUNC_FLOOR])
+ AC_REQUIRE([gl_FUNC_FLOORL])
+ dnl Append $ISNANL_LIBM to SINL_LIBM, avoiding gratuitous duplicates.
+ case " $SINL_LIBM " in
+ *" $ISNANL_LIBM "*) ;;
+ *) SINL_LIBM="$SINL_LIBM $ISNANL_LIBM" ;;
+ esac
+ dnl Append $FLOOR_LIBM to SINL_LIBM, avoiding gratuitous duplicates.
+ case " $SINL_LIBM " in
+ *" $FLOOR_LIBM "*) ;;
+ *) SINL_LIBM="$SINL_LIBM $FLOOR_LIBM" ;;
+ esac
+ dnl Append $FLOORL_LIBM to SINL_LIBM, avoiding gratuitous duplicates.
+ case " $SINL_LIBM " in
+ *" $FLOORL_LIBM "*) ;;
+ *) SINL_LIBM="$SINL_LIBM $FLOORL_LIBM" ;;
+ esac
+ fi
fi
AC_SUBST([SINL_LIBM])
])
Depends-on:
math
extensions
-float [test $HAVE_SINL = 0]
-isnanl [test $HAVE_SINL = 0]
-floor [test $HAVE_SINL = 0]
-floorl [test $HAVE_SINL = 0]
+sin [test $HAVE_SINL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 1]
+float [test $HAVE_SINL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
+isnanl [test $HAVE_SINL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
+floor [test $HAVE_SINL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
+floorl [test $HAVE_SINL = 0 && test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0]
configure.ac:
gl_FUNC_SINL
if test $HAVE_SINL = 0; then
AC_LIBOBJ([sinl])
- AC_LIBOBJ([sincosl])
- AC_LIBOBJ([trigl])
+ if test $HAVE_SAME_LONG_DOUBLE_AS_DOUBLE = 0; then
+ AC_LIBOBJ([sincosl])
+ AC_LIBOBJ([trigl])
+ fi
fi
gl_MATH_MODULE_INDICATOR([sinl])