-# getline.m4 serial 7
-dnl Copyright (C) 1998-2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License. As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# getline.m4 serial 19
-AC_PREREQ(2.52)
+dnl Copyright (C) 1998-2003, 2005-2007, 2009 Free Software Foundation, Inc.
+dnl
+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_PREREQ([2.59])
dnl See if there's a working, system-supplied version of the getline function.
-dnl We can't just do AC_REPLACE_FUNCS(getline) because some systems
+dnl We can't just do AC_REPLACE_FUNCS([getline]) because some systems
dnl have a function by that name in -linet that doesn't have anything
dnl to do with the function we need.
-AC_DEFUN([AM_FUNC_GETLINE],
+AC_DEFUN([gl_FUNC_GETLINE],
[
- dnl Persuade glibc <stdio.h> to declare getline() and getdelim().
- AC_REQUIRE([AC_GNU_SOURCE])
+ AC_REQUIRE([gl_STDIO_H_DEFAULTS])
+
+ dnl Persuade glibc <stdio.h> to declare getline().
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ AC_CHECK_DECLS_ONCE([getline])
- am_getline_needs_run_time_check=no
- AC_CHECK_FUNC(getline,
+ gl_getline_needs_run_time_check=no
+ AC_CHECK_FUNC([getline],
dnl Found it in some library. Verify that it works.
- am_getline_needs_run_time_check=yes,
+ gl_getline_needs_run_time_check=yes,
am_cv_func_working_getline=no)
- if test $am_getline_needs_run_time_check = yes; then
- AC_CACHE_CHECK([for working getline function], am_cv_func_working_getline,
+ if test $gl_getline_needs_run_time_check = yes; then
+ AC_CACHE_CHECK([for working getline function], [am_cv_func_working_getline],
[echo fooN |tr -d '\012'|tr N '\012' > conftest.data
AC_TRY_RUN([
# include <stdio.h>
}
], am_cv_func_working_getline=yes dnl The library version works.
, am_cv_func_working_getline=no dnl The library version does NOT work.
- , am_cv_func_working_getline=no dnl We're cross compiling.
+ , dnl We're cross compiling. Assume it works on glibc2 systems.
+ [AC_EGREP_CPP([Lucky GNU user],
+ [
+#include <features.h>
+#ifdef __GNU_LIBRARY__
+ #if (__GLIBC__ >= 2)
+ Lucky GNU user
+ #endif
+#endif
+ ],
+ [am_cv_func_working_getline=yes],
+ [am_cv_func_working_getline=no])]
)])
fi
+ if test $ac_cv_have_decl_getline = no; then
+ HAVE_DECL_GETLINE=0
+ fi
+
if test $am_cv_func_working_getline = no; then
- dnl We must choose a different name for our function, since on ELF systems
- dnl a broken getline() in libc.so would override our getline() in
- dnl libgettextlib.so.
- AC_DEFINE([getline], [gnu_getline],
- [Define to a replacement function name for getline().])
- AC_LIBOBJ(getline)
+ REPLACE_GETLINE=1
+ AC_LIBOBJ([getline])
+
gl_PREREQ_GETLINE
fi
])
# Prerequisites of lib/getline.c.
AC_DEFUN([gl_PREREQ_GETLINE],
[
- AC_CHECK_FUNCS(getdelim)
+ gl_FUNC_GETDELIM
])