问题
my system is centos based.
the reason i try to build autoconf is that someone told me i can try to build it in order to solve the other problem, you may find the motivation with this link why autogen.sh failed even with the correct autoconf?
[mirror@home auto]$ cd autoconf/
[mirror@home autoconf]$ ls
AUTHORS cfg.mk ChangeLog.3 COPYINGv3 lib man README-hacking
bin ChangeLog.0 configure.ac doc m4 NEWS tests
BUGS ChangeLog.1 COPYING GNUmakefile maint.mk README THANKS
build-aux ChangeLog.2 COPYING.EXCEPTION HACKING Makefile.am README-alpha TODO
[mirror@home autoconf]$ autoreconf -iv
autoreconf: Entering directory `.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal -I m4
configure.ac:20: error: Autoconf version 2.60 or higher is required
configure.ac:20: the top level
autom4te: /usr/bin/m4 failed with exit status: 63
aclocal: autom4te failed with exit status: 63
autoreconf: aclocal failed with exit status: 63
// i have autoreconf2.6x on my system, its version si higher than 2.6, but still failed to build, why?
[mirror@home autoconf]$ autore
autoreconf autoreconf2.59 autoreconf2.6x autorespond
[mirror@home autoconf]$ autore
autoreconf autoreconf2.59 autoreconf2.6x autorespond
[mirror@home autoconf]$ autoreconf2.6x -iv
[mirror@home autoconf]$ autoconf2.6x --version
autoconf (GNU Autoconf) 2.63
Copyright (C) 2008 Free Software Foundation, Inc.
License GPLv2+: GNU GPL version 2 or later
<http://gnu.org/licenses/old-licenses/gpl-2.0.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Written by David J. MacKenzie and Akim Demaille.
still failed to build autoconf, what i should do in order to build it?
[mirror@home autoconf]$ ./configure
bash: ./configure: No such file or directory
[mirror@home autoconf]$ autoconf
configure.ac:29: error: possibly undefined macro: AM_INIT_AUTOMAKE
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
configure.ac:117: error: possibly undefined macro: AC_PROG_GNU_M4
configure.ac:124: error: possibly undefined macro: AM_MISSING_PROG
configure.ac:187: error: possibly undefined macro: AM_PATH_LISPDIR
configure.ac:201: error: possibly undefined macro: AC_PROG_MAKE_CASE_SENSITIVE
[mirror@home autoconf]$ autoconf2.
autoconf2.59 autoconf2.6x
[mirror@home autoconf]$ autoconf2.6x
[mirror@home autoconf]$ ./configure --prefix=$HOME/ins/ins_auto
[mirror@home autoconf]$ autoreconf2.6x
configure.ac:20: error: Autoconf version 2.60 or higher is required
configure.ac:20: the top level
autom4te: /usr/bin/m4 failed with exit status: 63
aclocal: autom4te failed with exit status: 63
autoreconf2.6x: aclocal failed with exit status: 63
回答1:
You have two versions of autoconf installed, and when aclocal runs autom4te, this launches the old one. Do you have a autom4te-2.6x in your path? If so, set export AUTOM4TE=autom4te2.6x before running autoreconf-2.64.
来源：https://stackoverflow.com/questions/12288891/why-i-failed-to-build-autoconf-with-autoconf2-6x-its-version-is-newer-than-2-6