autoconf/automake 使用笔记

1. 目录结构

./src

./src/CommonLib   (静态库)

./src/media       (静态库，依赖CommonLib)

./src/DashParser  (可执行程序, 依赖CommonLib和media)

 

2. 为CommonLib创建Makefile文件

(1) cd ./src/CommonLib

 

(2) 执行autoscan，产生configure.scan，改名为configure.in(或configure.ac)

 

(3) cat configure.in

#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.63])
AC_INIT([FULL-PACKAGE-NAME], [VERSION], [BUG-REPORT-ADDRESS])
AC_CONFIG_SRCDIR([bigendian.cpp])
#AC_CONFIG_HEADERS([config.h])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC

# Checks for libraries.

# Checks for header files.
AC_CHECK_HEADERS([stdlib.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL

# Checks for library functions.

AC_OUTPUT

 

(4)将configure.in修改为:

#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.63])
AC_INIT([FULL-PACKAGE-NAME], [VERSION], [BUG-REPORT-ADDRESS])
AM_INIT_AUTOMAKE(CommonLib, 1.0)
AC_CONFIG_SRCDIR([bigendian.cpp])
#AC_CONFIG_HEADERS([config.h])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC

AC_PROG_RANLIB

# Checks for libraries.

# Checks for header files.
AC_CHECK_HEADERS([stdlib.h])

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL

# Checks for library functions.

AC_OUTPUT(Makefile)

 

说明：
如果不使用静态库或动态库 'AC_PROG_RANLIB' 和 'AC_PROG_LIBTOOL' 则都不需要
如果仅使用静态库，增加 'AC_PROG_RANLIB' 即可
如果需要使用动态库，需加上 'AC_PROG_LIBTOOL'  

 

(5)运行aclocal

 

(6) 运行autoconf

 

(7) 创建文件NEWS, README, AUTHORS, ChangeLog，以符合GNU/linux autotools规范

 

(8) 手动创建Makefile.am文件，加入下面内容：

noinst_LIBRARIES = libcommonlib.a
libcommonlib_a_SOURCES= bigendian.cpp DataInputStream.cpp Logger.cpp mime.cpp
INCLUDES=-I./

 

说明:

文件类型	书写格式
可执行文件	bin_PROGRAMS = foo
	foo_SOURCES = xxxx.c
	foo_LDADD = libfoolib.a
	foo_LDFLAGS =
	foo_DEPENDENCIES =
静态库	lib_LIBRARIES = libfoo.a
	foo_a_SOURCES =
	foo_a_LDADD =
	foo_a_LIBADD =
	foo_a_LDFALGS =
头文件	include_HEADERS = foo.h
数据文件	data_DATA = data1 data2

 

如果只想编译，而不想安装到系统中，就用 noinst_LIBRARIES 代替 bin_LIBRARIES ，对于可执行文件就用 noinst_PROGRAMS 代替 bin_PROGRAMS

 

还可以在Makefile.am添加编译参数AM_CPPFLAGS和AM_LDFLAGS

 

比如64位linux编译32位程序可以加入下面参数:

 

AM_CPPFLAGS = -m32
AM_LDFLAGS = -m32 -melf_32 

 

(9)运行autoheader 

 

(10) 运行automake -acf

 

(11) make

 

3. 和CommonLib一样，为media创建makefile文件

 

(1)configure.in:

#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.63])
AC_INIT([FULL-PACKAGE-NAME], [VERSION], [BUG-REPORT-ADDRESS])
AM_INIT_AUTOMAKE(Media, 1.0)
AC_CONFIG_SRCDIR([AMRSampleEntry.cpp])
AC_CONFIG_HEADERS([config.h])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_RANLIB

# Checks for libraries.

# Checks for header files.

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL

# Checks for library functions.
AC_CHECK_FUNCS([memset])

AC_OUTPUT(Makefile)

(2)Makefile.am:

noinst_LIBRARIES = libmedia.a
libmedia_a_SOURCES= \
  AMRSampleEntry.cpp \

  ... \
  VideoMediaHeaderBox.cpp

libmedia_a_LIBADD =../CommonLib/libcommonlib.a 
INCLUDES=-I./

 

 4. 为DashParser创建Makefile文件

(1) configure.in:

#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

AC_PREREQ([2.63])
AC_INIT([FULL-PACKAGE-NAME], [VERSION], [BUG-REPORT-ADDRESS])
AM_INIT_AUTOMAKE(DashParser, 1.0)
AC_CONFIG_SRCDIR([DashParser.cpp])
AC_CONFIG_HEADERS([config.h])

# Checks for programs.
AC_PROG_CXX
AC_PROG_CC
AC_PROG_RANLIB

# Checks for libraries.

# Checks for header files.

# Checks for typedefs, structures, and compiler characteristics.
AC_HEADER_STDBOOL

# Checks for library functions.

AC_OUTPUT(Makefile)

(2) Makefile.am

bin_PROGRAMS = DashParser
DashParser_SOURCES = DashParser.cpp
DashParser_LDADD = ../media/libmedia.a ../CommonLib/libcommonlib.a
INCLUDES = -I./ -I../CommonLib/ -I../media/

 

说明：

因为libmedia.a依赖libcommonlib.a，所以DashParser_LDADD一行中libmedia.a必须写在前面，否则会出现undefined reference错误