在 Ubuntu 上编译 PHP 扩展库(Karmic Koala)
不久前,我在 XP 平台上编译了一些 PHP 扩展库(C/C++ 语言)。我现在已将源代码移至我的 Ubuntu 机器上,并希望构建在我的 Linux 机器上使用的库。
然而,我遇到了许多障碍:
- 我无法找到 phpize(即使在安装了 php5dev 软件包之后)
- 我无法找到 ext_skel 来生成骨架脚本/文件
[编辑]
感谢 Pascal Martin 和< a href="https://stackoverflow.com/questions/1250412/how-do-i-build-my-first-php-extension-in-c-on-linux-gcc" title="这个问题">这个问题,我已经成功构建并测试了我的一个较小的库。我只想在继续其他库之前仔细检查 .m4 文件的内容(因为我不熟悉该格式)。
这是自动生成的 .m4 文件的内容 - 任何熟悉该格式的人都可以解释一下它的含义吗 - 这样我就可以双重确定我已取消注释该文件的正确部分。
下面显示了 config.m4 文件的内容及其所有血淋淋的细节:
dnl $Id$
dnl config.m4 for extension tanlib
dnl Comments in this file start with the string 'dnl'.
dnl Remove where necessary. This file will not work
dnl without editing.
dnl If your extension references something external, use with:
dnl PHP_ARG_WITH(tanlib, for tanlib support,
dnl Make sure that the comment is aligned:
dnl [ --with-tanlib Include tanlib support])
dnl Otherwise use enable:
PHP_ARG_ENABLE(tanlib, whether to enable tanlib support,
dnl Make sure that the comment is aligned:
[ --enable-tanlib Enable tanlib support])
if test "$PHP_TANLIB" != "no"; then
dnl Write more examples of tests here...
dnl # --with-tanlib -> check with-path
dnl SEARCH_PATH="/usr/local /usr" # you might want to change this
dnl SEARCH_FOR="/include/tanlib.h" # you most likely want to change this
dnl if test -r $PHP_TANLIB/$SEARCH_FOR; then # path given as parameter
dnl TANLIB_DIR=$PHP_TANLIB
dnl else # search default path list
dnl AC_MSG_CHECKING([for tanlib files in default path])
dnl for i in $SEARCH_PATH ; do
dnl if test -r $i/$SEARCH_FOR; then
dnl TANLIB_DIR=$i
dnl AC_MSG_RESULT(found in $i)
dnl fi
dnl done
dnl fi
dnl
dnl if test -z "$TANLIB_DIR"; then
dnl AC_MSG_RESULT([not found])
dnl AC_MSG_ERROR([Please reinstall the tanlib distribution])
dnl fi
dnl # --with-tanlib -> add include path
dnl PHP_ADD_INCLUDE($TANLIB_DIR/include)
dnl # --with-tanlib -> check for lib and symbol presence
dnl LIBNAME=tanlib # you may want to change this
dnl LIBSYMBOL=tanlib # you most likely want to change this
dnl PHP_CHECK_LIBRARY($LIBNAME,$LIBSYMBOL,
dnl [
dnl PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $TANLIB_DIR/lib, TANLIB_SHARED_LIBADD)
AC_DEFINE(HAVE_TANLIBLIB,1,[ Whether you have tanlib])
dnl ],[
dnl AC_MSG_ERROR([wrong tanlib lib version or lib not found])
dnl ],[
dnl -L$TANLIB_DIR/lib -lm -ldl
dnl ])
dnl
dnl PHP_SUBST(TANLIB_SHARED_LIBADD)
PHP_NEW_EXTENSION(tanlib, tanlib.c, $ext_shared)
fi
有人理解上面的内容吗?
顺便说一句,上面的 config.m4 文件是使用 Autoconf 2.50 生成的(我也刚刚看到文档 这里,我正在慢慢消化它。
I compiled some PHP extention libs (in C/C++) a while back, on my XP platform. I have now moved the sources to my Ubuntu box, and want to build the libs for use on my Linux box.
However, I have come accross a number of obstacles:
- I cant locate phpize (even after installing the php5dev package)
- I cant find ext_skel to generate the skeleton script/files
[Edit]
Thanks to Pascal Martin and this question, I have managed to build and test one of my smaller libraries. I just want to double check the contents of my .m4 file (since I am not familiar with the format), before I go ahead with the other libraries.
This is the content of the autogenerated .m4 file - is anyone familiar with the format, and can they explain what it means - this is so that I can be doubly sure that I have uncommented the correct sections of the file.
The contents of the config.m4 file are displayed below in all their gory detail:
dnl $Id$
dnl config.m4 for extension tanlib
dnl Comments in this file start with the string 'dnl'.
dnl Remove where necessary. This file will not work
dnl without editing.
dnl If your extension references something external, use with:
dnl PHP_ARG_WITH(tanlib, for tanlib support,
dnl Make sure that the comment is aligned:
dnl [ --with-tanlib Include tanlib support])
dnl Otherwise use enable:
PHP_ARG_ENABLE(tanlib, whether to enable tanlib support,
dnl Make sure that the comment is aligned:
[ --enable-tanlib Enable tanlib support])
if test "$PHP_TANLIB" != "no"; then
dnl Write more examples of tests here...
dnl # --with-tanlib -> check with-path
dnl SEARCH_PATH="/usr/local /usr" # you might want to change this
dnl SEARCH_FOR="/include/tanlib.h" # you most likely want to change this
dnl if test -r $PHP_TANLIB/$SEARCH_FOR; then # path given as parameter
dnl TANLIB_DIR=$PHP_TANLIB
dnl else # search default path list
dnl AC_MSG_CHECKING([for tanlib files in default path])
dnl for i in $SEARCH_PATH ; do
dnl if test -r $i/$SEARCH_FOR; then
dnl TANLIB_DIR=$i
dnl AC_MSG_RESULT(found in $i)
dnl fi
dnl done
dnl fi
dnl
dnl if test -z "$TANLIB_DIR"; then
dnl AC_MSG_RESULT([not found])
dnl AC_MSG_ERROR([Please reinstall the tanlib distribution])
dnl fi
dnl # --with-tanlib -> add include path
dnl PHP_ADD_INCLUDE($TANLIB_DIR/include)
dnl # --with-tanlib -> check for lib and symbol presence
dnl LIBNAME=tanlib # you may want to change this
dnl LIBSYMBOL=tanlib # you most likely want to change this
dnl PHP_CHECK_LIBRARY($LIBNAME,$LIBSYMBOL,
dnl [
dnl PHP_ADD_LIBRARY_WITH_PATH($LIBNAME, $TANLIB_DIR/lib, TANLIB_SHARED_LIBADD)
AC_DEFINE(HAVE_TANLIBLIB,1,[ Whether you have tanlib])
dnl ],[
dnl AC_MSG_ERROR([wrong tanlib lib version or lib not found])
dnl ],[
dnl -L$TANLIB_DIR/lib -lm -ldl
dnl ])
dnl
dnl PHP_SUBST(TANLIB_SHARED_LIBADD)
PHP_NEW_EXTENSION(tanlib, tanlib.c, $ext_shared)
fi
Does anyone grok the above?
BTW, the above config.m4 file was generated using Autoconf 2.50 (I have also just seen the documentation here and am slowly digesting it.
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评论(2)
在我的 Ubuntu 计算机上,phpize 位于:
ext_skel
应该位于 PHP 源代码的“ext
”目录中,您可以通过 SVN 获取该目录。这是
ext
目录:http://svn.php.net/viewvc/php/php-src/trunk/ext/
并且可以查看脚本内容
README.EXT_SKEL
就位于trunk/
下方。如果您是 git 用户,github 上有一个 SVN 镜像: http://github.com /php/
On my Ubuntu computer, phpize is in :
And
ext_skel
should be in the "ext
" directory, in the PHP sources, which you can get by SVN.Here's the
ext
directory :http://svn.php.net/viewvc/php/php-src/trunk/ext/
And you can view the content of the script here.
The
README.EXT_SKEL
is just undertrunk/
.If you're more of a git user, there is a mirror of the SVN on github : http://github.com/php/
为了回答您的后续问题,
dnl
是.m4
文件中的行注释标记,因此这些行当前没有执行任何操作。这可能没问题,因为它们大多仅在您使用外部库时才相关(并且按照惯例使用--with-myextension
配置选项而不是--enable-myextension< /代码>)。
因此,上述文件(截至修订版 3)相当于:
因此,如果您在此目录中执行以下操作,它应该可以工作(我认为,我没有合适的 Linux 机器来检查此操作):
最后, make确保在
/etc/php5/conf.d
中启用了该扩展。请记住,您需要重新启动 apache (
sudo /etc/init.d/apache2 restart
) 才能使所有扩展更改生效。To answer your followup question,
dnl
is the line comment marker in.m4
files, so those lines aren't doing anything currently. That's probably OK, since they're mostly only relevant if you're using an external library (and by convention using the--with-myextension
configure option rather than--enable-myextension
).The above file (as of revision 3) is therefore equivalent to:
So if you do the following in this directory, it should work (I think, I don't have a suitable Linux machine to hand to check this):
Finally, make sure that the extension is enabled in
/etc/php5/conf.d
.Remember you'll need to restart apache (
sudo /etc/init.d/apache2 restart
) to pick up any extension changes.