-# printf-frexpl.m4 serial 4
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# printf-frexpl.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.
AC_DEFUN([gl_FUNC_PRINTF_FREXPL],
[
AC_REQUIRE([gl_MATH_H_DEFAULTS])
+ dnl Subset of gl_FUNC_FREXPL_NO_LIBM.
AC_CACHE_CHECK([whether frexpl can be used without linking with libm],
[gl_cv_func_frexpl_no_libm],
[
[gl_cv_func_frexpl_no_libm=no])
])
if test $gl_cv_func_frexpl_no_libm = yes; then
- AC_DEFINE([HAVE_FREXPL_IN_LIBC], 1,
+ gl_FUNC_FREXPL_WORKS
+ case "$gl_cv_func_frexpl_works" in
+ *yes) gl_func_frexpl_no_libm=yes ;;
+ *) gl_func_frexpl_no_libm=no; REPLACE_FREXPL=1 ;;
+ esac
+ else
+ gl_func_frexpl_no_libm=no
+ dnl Set REPLACE_FREXPL here because the system may have frexpl in libm.
+ REPLACE_FREXPL=1
+ fi
+ if test $gl_func_frexpl_no_libm = yes; then
+ AC_DEFINE([HAVE_FREXPL_IN_LIBC], [1],
[Define if the frexpl function is available in libc.])
dnl Also check whether it's declared.
dnl MacOS X 10.3 has frexpl() in libc but doesn't declare it in <math.h>.
gl_FUNC_LDEXPL_WORKS
case "$gl_cv_func_ldexpl_works" in
*yes)
- AC_DEFINE([HAVE_LDEXPL_IN_LIBC], 1,
+ AC_DEFINE([HAVE_LDEXPL_IN_LIBC], [1],
[Define if the ldexpl function is available in libc.])
dnl Also check whether it's declared.
dnl MacOS X 10.3 has ldexpl() in libc but doesn't declare it in <math.h>.