libwp是我编写的一个函数库，封装了标准C、Unix、Pthread、BSD socket里面一些常用的函数，主要用于错误处理。
源代码放在/libwpu/src下，包括以下文件：
lyre@linux-4179e1:~/libwpu/src> ls *.c *.h
libwp.h wpbase.h wppthread.h wpsocket.h wpstdc.h wpunix.h
wpbase.c wppthread.c wpsocket.c wpstdc.c wpunix.c wpunix_rio.c
我们需要编辑以下几个文件：
/libwpu/configure.ac
/libwpu/Makefile.am
/libwpu/src/Makefile.am
1、/libwpu/configure.ac
# -*- Autoconf -*- # Process this file with autoconf to produce a configure script. AC_PREREQ(2.65) AC_INIT([libwp],[0.0.1],[4179e1@gmail.com]) AC_CONFIG_SRCDIR([src/wpbase.c]) AC_CONFIG_HEADERS([src/config.h]) AC_CONFIG_MACRO_DIR([m4]) AC_CONFIG_AUX_DIR([build-aux]) AM_INIT_AUTOMAKE([gnu -Wall -Werror]) LT_INIT RELEASE="1" AC_SUBST(RELEASE) # Checks for programs. AC_PROG_CC AC_PROG_INSTALL AC_LANG([C]) # Checks for libraries. # Checks for header files. AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h netdb.h shadow.h stdlib.h string.h sys/ioctl.h sys/socket.h sys/time.h syslog.h unistd.h utime.h]) # Checks for typedefs, structures, and compiler characteristics. AC_HEADER_STDBOOL AC_TYPE_UID_T AC_TYPE_MODE_T AC_TYPE_OFF_T AC_TYPE_PID_T AC_TYPE_SIZE_T AC_TYPE_SSIZE_T AC_TYPE_UINT32_T # Checks for library functions. AC_FUNC_CHOWN AC_FUNC_FORK AC_FUNC_FSEEKO AC_FUNC_GETGROUPS AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK AC_FUNC_MALLOC AC_FUNC_MKTIME AC_FUNC_MMAP AC_FUNC_REALLOC AC_CHECK_FUNCS([atexit dup2 fchdir fdatasync ftruncate getcwd gethostname getspnam gettimeofday lchown mkdir mkfifo munmap pathconf putenv rmdir setenv socket strerror uname utime]) AC_CONFIG_FILES([libwp.spec Makefile src/Makefile]) AC_OUTPUT
这个文件也可以由autoscan生成，但是需要手工修改其内容，并mv configure.scan configure.ac
2、/libwpu/Makefile.am
ACLOCAL_AMFLAGS = -I m4 SUBDIRS = src
3、/libwpu/src/Makefile.am
AM_CFLAGS = -Wall ACLOCAL_AMFLAGS = -I m4 lib_LTLIBRARIES = libwp.la libwp_la_SOURCES = wpbase.c wppthread.c wpsocket.c wpstdc.c wpunix.c wpunix_rio.c libwp.h wpbase.h wppthread.h wpsocket.h wpstdc.h wpunix.h include_HEADERS = libwp.h wpbase.h wppthread.h wpsocket.h wpstdc.h wpunix.h
接下来执行
1、建立m4和build-aux目录
lyre@linux-4179e1:~/libwpu>mkdir m4 build-aux
2、把m4宏复制到m4目录下，其中列出了复制文件的列表
lyre@linux-4179e1:~/libwpu> aclocal -I m4 --install aclocal: installing `m4/libtool.m4' from `/usr/share/aclocal/libtool.m4' aclocal: installing `m4/ltoptions.m4' from `/usr/share/aclocal/ltoptions.m4' aclocal: installing `m4/ltsugar.m4' from `/usr/share/aclocal/ltsugar.m4' aclocal: installing `m4/ltversion.m4' from `/usr/share/aclocal/ltversion.m4' aclocal: installing `m4/lt~obsolete.m4' from `/usr/share/aclocal/lt~obsolete.m4'
3、生成config.h.in
lyre@linux-4179e1:~/libwpu> autoheader lyre@linux-4179e1:~/libwpu> ls -l src/config.h.in -rw-r--r-- 1 lyre users 6912 11-30 16:45 src/config.h.in
4、复制libtool的脚本
lyre@linux-4179e1:~/libwpu> libtoolize -fc libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, `build-aux'. libtoolize: copying file `build-aux/ltmain.sh' libtoolize: putting macros in AC_CONFIG_MACRO_DIR, `m4'. libtoolize: copying file `m4/libtool.m4' libtoolize: copying file `m4/ltoptions.m4' libtoolize: copying file `m4/ltsugar.m4' libtoolize: copying file `m4/ltversion.m4' libtoolize: copying file `m4/lt~obsolete.m4
5、生成configure脚本
lyre@linux-4179e1:~/libwpu> autoconf
6、执行automake
lyre@linux-4179e1:~/libwpu> automake --add-missing -fc configure.ac:11: installing `build-aux/config.guess' configure.ac:11: installing `build-aux/config.sub' configure.ac:10: installing `build-aux/install-sh' configure.ac:10: installing `build-aux/missing' src/Makefile.am: installing `build-aux/depcomp' 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 Makefile.am: installing `./COPYING' using GNU General Public License v3 file Makefile.am: Consider adding the COPYING file to the version control system Makefile.am: for your code, to avoid questions about which license your project uses.
7、由于我采用了gnu的style，automake给了一些警告，说缺少几个文件，手动创建即可
touch NEWS README AUTHORS ChangeLog
8、到此为止，autotool的编译环境就搭建好了，测试一下：
lyre@linux-4179e1:~/libwpu> mkdir build lyre@linux-4179e1:~/libwpu> cd build lyre@linux-4179e1:~/libwpu/build> ../configure && make
9、如果没有问题，要发布代码之前最好用make distcheck检查一遍
lyre@linux-4179e1:~/libwpu> make distcheck
看到这样的结果，应该就没问题了