-#serial 4
+# getline.m4 serial 10
+
+dnl Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Free Software
+dnl 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.
+
+AC_PREREQ(2.52)
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 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,
-[dnl
+AC_DEFUN([AM_FUNC_GETLINE],
+[
+ dnl Persuade glibc <stdio.h> to declare getline() and getdelim().
+ AC_REQUIRE([AC_GNU_SOURCE])
+
am_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,
am_cv_func_working_getline=no)
if test $am_getline_needs_run_time_check = yes; then
- AC_CHECK_HEADERS(string.h)
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>
-# include <sys/types.h>
-# if HAVE_STRING_H
-# include <string.h>
-# endif
+# include <stdlib.h>
+# include <string.h>
int main ()
{ /* Based on a test program from Karl Heuer. */
char *line = NULL;
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)
+
+ # Avoid multiple inclusions of getndelim2.o into LIBOBJS.
+ # This hack won't be needed after gnulib requires Autoconf 2.58 or later.
+ case " $LIB@&t@OBJS " in
+ *" getndelim2.$ac_objext "* ) ;;
+ *) AC_LIBOBJ(getndelim2);;
+ esac
+
+ gl_PREREQ_GETLINE
+ gl_PREREQ_GETNDELIM2
fi
])
+
+# Prerequisites of lib/getline.c.
+AC_DEFUN([gl_PREREQ_GETLINE],
+[
+ AC_CHECK_FUNCS(getdelim)
+])