GNU/Linux 编程指南之三： autoconf-----configure software to a target platform

 GNU autoconf, a tool that enables you to configure your software to adapt to the wide assortment of system configurations in which it may be built, including many non-Linux systems.

 

   The ultimate goal of autoconf is to generate a makefile.

 

    autoconf can generates shell scripts that automatically configure source code packages to adapt to many different brands of UNIX and UNIX-like system. These scripts, usually named  configure, test for the presence or absence of certain features a program needs or can use, and build makefiles based on the results of these tests.

 

 

Building configure.in

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AC_INIT(unique_file_in_source_dir)

any test

AC_OUTPUT([file...[,extra_cmds[,init_cmds]]])

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unique_file_in_source_dir is a file present in the source code directory.

AC_OUTPUT creates the output files, such as Makefiles and other(optional) output files.

 

 

Sturcturing the File

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AC_INIT

               Test for programs

               Test for libraries

               Test for header files

               Test for typedefs

               Test for structures

               Test for compiler behavior

               Test for library functions

               Test for system services

AC_OUTPUT

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总结： 先看到这里，等下边用得着的时候再回来仔细看。