-# expl.m4 serial 5
-dnl Copyright (C) 2010-2012 Free Software Foundation, Inc.
+# expl.m4 serial 8
+dnl Copyright (C) 2010-2013 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.
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
+ long double (*funcptr) (long double) = expl;
long double x;]],
- [[return expl (x) > 1.5;]])],
+ [[return funcptr (x) > 1.5
+ || expl (x) > 1.5;]])],
[gl_cv_func_expl_no_libm=yes],
[gl_cv_func_expl_no_libm=no])
])
# define __NO_MATH_INLINES 1 /* for glibc */
#endif
#include <math.h>
+ long double (*funcptr) (long double) = expl;
long double x;]],
- [[return expl (x) > 1.5;]])],
+ [[return funcptr (x) > 1.5
+ || expl (x) > 1.5;]])],
[gl_cv_func_expl_in_libm=yes],
[gl_cv_func_expl_in_libm=no])
LIBS="$save_LIBS"
if test $gl_cv_func_expl_no_libm = yes \
|| test $gl_cv_func_expl_in_libm = yes; then
dnl Also check whether it's declared.
- dnl MacOS X 10.3 has expl() in libc but doesn't declare it in <math.h>.
+ dnl Mac OS X 10.3 has expl() in libc but doesn't declare it in <math.h>.
AC_CHECK_DECL([expl], , [HAVE_DECL_EXPL=0], [[#include <math.h>]])
else
HAVE_DECL_EXPL=0
AC_REQUIRE([gl_FUNC_EXP])
EXPL_LIBM="$EXP_LIBM"
else
- AC_REQUIRE([gl_FUNC_FLOORL])
- EXPL_LIBM="$FLOORL_LIBM"
+ AC_REQUIRE([gl_FUNC_ISNANL])
+ AC_REQUIRE([gl_FUNC_ROUNDL])
+ AC_REQUIRE([gl_FUNC_LDEXPL])
+ EXPL_LIBM=
+ dnl Append $ISNANL_LIBM to EXPL_LIBM, avoiding gratuitous duplicates.
+ case " $EXPL_LIBM " in
+ *" $ISNANL_LIBM "*) ;;
+ *) EXPL_LIBM="$EXPL_LIBM $ISNANL_LIBM" ;;
+ esac
+ dnl Append $ROUNDL_LIBM to EXPL_LIBM, avoiding gratuitous duplicates.
+ case " $EXPL_LIBM " in
+ *" $ROUNDL_LIBM "*) ;;
+ *) EXPL_LIBM="$EXPL_LIBM $ROUNDL_LIBM" ;;
+ esac
+ dnl Append $LDEXPL_LIBM to EXPL_LIBM, avoiding gratuitous duplicates.
+ case " $EXPL_LIBM " in
+ *" $LDEXPL_LIBM "*) ;;
+ *) EXPL_LIBM="$EXPL_LIBM $LDEXPL_LIBM" ;;
+ esac
fi
fi
AC_SUBST([EXPL_LIBM])