-# ldexpl.m4 serial 9
+# ldexpl.m4 serial 10
dnl Copyright (C) 2007-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
AC_DEFUN([gl_FUNC_LDEXPL],
[
AC_REQUIRE([gl_MATH_H_DEFAULTS])
+ AC_REQUIRE([gl_FUNC_ISNANL]) dnl for ISNANL_LIBM
dnl Check whether it's declared.
dnl MacOS X 10.3 has ldexpl() in libc but doesn't declare it in <math.h>.
AC_CHECK_DECL([ldexpl], , [HAVE_DECL_LDEXPL=0], [#include <math.h>])
LIBS="$save_LIBS"
case "$gl_cv_func_ldexpl_works" in
*yes) gl_func_ldexpl=yes ;;
- *) gl_func_ldexpl=no; REPLACE_LDEXPL=1; LDEXPL_LIBM= ;;
+ *) gl_func_ldexpl=no; REPLACE_LDEXPL=1 ;;
esac
else
gl_func_ldexpl=no
fi
if test $HAVE_DECL_LDEXPL = 0 || test $gl_func_ldexpl = no; then
AC_LIBOBJ([ldexpl])
+ LDEXPL_LIBM="$ISNANL_LIBM"
fi
AC_SUBST([LDEXPL_LIBM])
])