我是 autotools 的新手,并遵循本教程。但我无法解决这个错误,
   $ automake
   configure.ac: error: no proper invocation of AM_INIT_AUTOMAKE was found.
   ..
   Makefile.am: error: required file './depcomp' not found
   ..
   /usr/share/automake-1.12/am/depend2.am: error: am__fastdepCC does not appear in AM_CONDITIONAL
  ..
  /usr/share/automake-1.12/am/depend2.am: error: AMDEP does not appear in AM_CONDITIONAL
  ..
我的configure.ac文件是
   # -*- Autoconf -*-
   # Process this file with autoconf to produce a configure script.
   AC_PREREQ([2.69])
   AC_INIT([FULL-PACKAGE-NAME], [VERSION], [BUG-REPORT-ADDRESS])
   AM_INIT_AUTOMAKE(hello,1.0)
   AC_CONFIG_SRCDIR([config.h.in])
   AM_CONFIG_HEADERS(config.h)
   # Checks for programs.
   AC_PROG_CC
   # Checks for libraries.
   # Checks for header files.
   AC_CHECK_HEADERS([sys/time.h])
   # Checks for typedefs, structures, and compiler characteristics.
   # Checks for library functions.
   AC_CHECK_FUNCS([gettimeofday])
   AC_CONFIG_FILES([Makefile])
   AC_OUTPUT
我在网上查了解决方法,我的configure.ac看起来很好,不知道是什么问题。