-# mathfunc.m4 serial 5
-dnl Copyright (C) 2010 Free Software Foundation, Inc.
+# mathfunc.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,
dnl with or without modifications, as long as this notice is preserved.
[gl_cv_func_]func[_no_libm],
[
AC_LINK_IFELSE(
- [AC_LANG_PROGRAM([[#ifndef __NO_MATH_INLINES
- # define __NO_MATH_INLINES 1 /* for glibc */
- #endif
- #include <math.h>
- $2 (*funcptr) $3 = ]func[;]],
- [[return 0;]])],
+ [AC_LANG_PROGRAM(
+ [[#ifndef __NO_MATH_INLINES
+ # define __NO_MATH_INLINES 1 /* for glibc */
+ #endif
+ #include <math.h>
+ $2 (*funcptr) $3 = ]func[;
+ double d_ret;]],
+ [[$2 y = funcptr ]m4_bpatsubst([m4_bpatsubst([m4_bpatsubst([$3], [int], [2])], [double \*], [&d_ret])], [double], [1.6180339887])[;
+ return y < 0.3 || y > 1.7;
+ ]])],
[gl_cv_func_]func[_no_libm=yes],
[gl_cv_func_]func[_no_libm=no])
])
save_LIBS="$LIBS"
LIBS="$LIBS -lm"
AC_LINK_IFELSE(
- [AC_LANG_PROGRAM([[#ifndef __NO_MATH_INLINES
- # define __NO_MATH_INLINES 1 /* for glibc */
- #endif
- #include <math.h>
- $2 (*funcptr) $3 = ]func[;]],
- [[return 0;]])],
+ [AC_LANG_PROGRAM(
+ [[#ifndef __NO_MATH_INLINES
+ # define __NO_MATH_INLINES 1 /* for glibc */
+ #endif
+ #include <math.h>
+ $2 (*funcptr) $3 = ]func[;
+ double d_ret;]],
+ [[$2 y = funcptr ]m4_bpatsubst([m4_bpatsubst([m4_bpatsubst([$3], [int], [2])], [double \*], [&d_ret])], [double], [1.6180339887])[;
+ return y < 0.3 || y > 1.7;
+ ]])],
[gl_cv_func_]func[_in_libm=yes],
[gl_cv_func_]func[_in_libm=no])
LIBS="$save_LIBS"