AutoMake 学习笔记

AutoMake 学习笔记

作者：许振文

过程记录：

1. autoscan

2. 修改configure.scan，重命名为configure.in,编辑Ｍａｋｅｆｉｌｅ.ａｍ

3. 运行aclocal

4. autoconf

5. automake --add-missing

6. ./configure &&　ｍａｋｅ　&&　ｍａｋｅ　ｉｎｓｔａｌｌ了。

制作目录结构及文件：

helight@helight:myshell$ ls

src

helight@helight:myshell$ ls src/

myshell.c

helight@helight:myshell$

接下来运行“autoscan”并且编辑相关文件：

1.将"configure.scan"重命名为"configure.in"。

2.在本文件夹和子文件夹中建立Makefile.am文件。

helight@helight:myshell$ autoscan 

helight@helight:myshell$ ls

autoscan.log  configure.scan  src

helight@helight:myshell$ mv configure.scan configure.in

helight@helight:myshell$ vim configure.in 

helight@helight:myshell$ vim Makefile.am

helight@helight:myshell$ vim src/Makefile.am

修改后的configure.in

#                                               -*- Autoconf -*-                          

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

AC_PREREQ(2.61)

AC_INIT("myshell", "0.01", "[e-mail]")

AC_CONFIG_SRCDIR([src/myshell.c])

AC_CONFIG_HEADER([config.h])

AM_INIT_AUTOMAKE("myshell", "0.01")

# Checks for programs.

AC_PROG_CC

# Checks for libraries.

# Checks for header files.

AC_HEADER_STDC

AC_HEADER_SYS_WAIT

AC_CHECK_HEADERS([stdlib.h string.h unistd.h])

# Checks for typedefs, structures, and compiler characteristics.

AC_TYPE_PID_T

AC_TYPE_UID_T

# Checks for library functions.

AC_FUNC_FORK

AC_FUNC_MALLOC

AC_CHECK_FUNCS([memset strrchr])

AC_CONFIG_FILES(Makefile

        src/Makefile)

AC_OUTPUT

与autoscan生成的文件相比，主要添加修改了以下几行:

AC_INIT("myshell", "0.01", "[e-mail]")

AM_INIT_AUTOMAKE("myshell", "0.01")

AC_CONFIG_FILES(Makefile

        src/Makefile)

新建立的Makefile.am文件的内容

helight@helight:myshell$ cat Makefile.am 

#Makefile.am

SUBDIRS = src

helight@helight:myshell$

新建立的src/Makefile.am文件的内容

helight@helight:myshell$ cat src/Makefile.am 

#src/Makefiel.am

bin_PROGRAMS = myshell

myshell_SOURCES = myshell.c

helight@helight:myshell$ 

接下来运行aclocal

此时会生成aclocal.m4和autom4te.cache。

helight@helight:myshell$ aclocal

helight@helight:myshell$ ls

aclocal.m4  autoscan.log  configure.in  Makefile.am  src

helight@helight:myshell$

再运行:autoconf生成configure文件.

helight@helight:myshell$ autoconf 

helight@helight:myshell$ ls

aclocal.m4      autoscan.log  configure.in  src

autom4te.cache  configure     Makefile.am

helight@helight:myshell$

再运行autohead 生成config.h.in

helight@helight:myshell$ autoheader 

helight@helight:myshell$ ls

aclocal.m4      autoscan.log  configure     Makefile.am

autom4te.cache  config.h.in   configure.in  src

helight@helight:myshell$

最后运行automake --add-missing 就能得到Makefile.in

helight@helight:myshell$ automake --add-missing

configure.in: installing `./install-sh'

configure.in: installing `./mkinstalldirs'

configure.in: installing `./missing'

Makefile.am: installing `./COPYING'

Makefile.am: installing `./INSTALL'

Makefile.am: required file `./NEWS' not found

Makefile.am: required file `./README' not found

Makefile.am: required file `./AUTHORS' not found

Makefile.am: required file `./ChangeLog' not found

src/Makefile.am: installing `./depcomp'

helight@helight:myshell$ ls

aclocal.m4      config.h.in   COPYING  install-sh   missing

autom4te.cache  configure     depcomp  Makefile.am  mkinstalldirs

autoscan.log    configure.in  INSTALL  Makefile.in  src

helight@helight:myshell$

这里可以看到提示缺少一些文件。但这些文件是可以不要的。

可以configure了

helight@helight:myshell$ ./configure 

checking for a BSD-compatible install... /usr/bin/install -c

checking whether build environment is sane... yes

checking for gawk... no

checking for mawk... mawk

checking whether make sets $(MAKE)... yes

checking for gcc... gcc

checking for C compiler default output file name... a.out

checking whether the C compiler works... yes

checking whether we are cross compiling... no

checking for suffix of executables... 

checking for suffix of object files... o

checking whether we are using the GNU C compiler... yes

checking whether gcc accepts -g... yes

checking for gcc option to accept ISO C89... none needed

checking for style of include used by make... GNU

checking dependency style of gcc... gcc3

checking how to run the C preprocessor... gcc -E

checking for grep that handles long lines and -e... /bin/grep

checking for egrep... /bin/grep -E

checking for ANSI C header files... yes

checking for sys/wait.h that is POSIX.1 compatible... yes

checking for sys/types.h... yes

checking for sys/stat.h... yes

checking for stdlib.h... yes

checking for string.h... yes

checking for memory.h... yes

checking for strings.h... yes

checking for inttypes.h... yes

checking for stdint.h... yes

checking for unistd.h... yes

checking for stdlib.h... (cached) yes

checking for string.h... (cached) yes

checking for unistd.h... (cached) yes

checking for pid_t... yes

checking for uid_t in sys/types.h... yes

checking vfork.h usability... no

checking vfork.h presence... no

checking for vfork.h... no

checking for fork... yes

checking for vfork... yes

checking for working fork... yes

checking for working vfork... (cached) yes

checking for stdlib.h... (cached) yes

checking for GNU libc compatible malloc... yes

checking for memset... yes

checking for strrchr... yes

configure: creating ./config.status

config.status: creating Makefile

config.status: creating src/Makefile

config.status: creating config.h

config.status: executing depfiles commands

helight@helight:myshell$ 

编译make

helight@helight:myshell$ make

最后附上一张automake的工作流程图：