-# ceill.m4 serial 2
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# ceill.m4 serial 6
+dnl Copyright (C) 2007, 2009-2010 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.
dnl Test whether ceill() can be used without libm.
gl_FUNC_CEILL_LIBS
if test "$CEILL_LIBM" = "?"; then
- CEILL_LIBM=
+ dnl Sun C 5.0 on Solaris declares ceill() and has it in the system-wide
+ dnl libm.so, but not in the libm.so that the compiler uses.
+ REPLACE_CEILL=1
fi
else
HAVE_DECL_CEILL=0
+ fi
+ if test $HAVE_DECL_CEILL = 0 || test $REPLACE_CEILL = 1; then
AC_LIBOBJ([ceill])
CEILL_LIBM=
fi
- AC_SUBST([HAVE_DECL_CEILL])
AC_SUBST([CEILL_LIBM])
])
# Sets CEILL_LIBM.
AC_DEFUN([gl_FUNC_CEILL_LIBS],
[
- AC_CACHE_VAL([gl_func_ceill_libm], [
- gl_func_ceill_libm=?
+ gl_CACHE_VAL_SILENT([gl_cv_func_ceill_libm], [
+ gl_cv_func_ceill_libm=?
AC_TRY_LINK([
#ifndef __NO_MATH_INLINES
# define __NO_MATH_INLINES 1 /* for glibc */
#include <math.h>
long double x;],
[x = ceill(x);],
- [gl_func_ceill_libm=])
- if test "$gl_func_ceill_libm" = "?"; then
+ [gl_cv_func_ceill_libm=])
+ if test "$gl_cv_func_ceill_libm" = "?"; then
save_LIBS="$LIBS"
LIBS="$LIBS -lm"
AC_TRY_LINK([
#include <math.h>
long double x;],
[x = ceill(x);],
- [gl_func_ceill_libm="-lm"])
+ [gl_cv_func_ceill_libm="-lm"])
LIBS="$save_LIBS"
fi
])
- CEILL_LIBM="$gl_func_ceill_libm"
+ CEILL_LIBM="$gl_cv_func_ceill_libm"
])