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https://github.com/phpv8/v8js.git
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1642ce48ba
Added a note about adding the extension to PHP config, especially for CLI, which needs to be configured separately in some PHP7 installs.
73 lines
2.3 KiB
Markdown
73 lines
2.3 KiB
Markdown
V8Js on GNU/Linux
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=================
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Installation of V8Js on GNU/Linux is pretty much straight forward.
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The biggest hurdle actually is that you need a rather new v8 library.
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However most distributions still ship the rusty version 3.14, publish
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years ago, since Node.js requires such an old version.
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This means that you usually need to compile v8 on your own before
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you can start to compile & install v8js itself.
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Compile latest v8
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-----------------
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```
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cd /tmp
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# Install depot_tools first (needed for source checkout)
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git clone https://chromium.googlesource.com/chromium/tools/depot_tools.git
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export PATH=`pwd`/depot_tools:"$PATH"
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# Download v8
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fetch v8
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cd v8
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# (optional) If you'd like to build a certain version:
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git checkout 3.32.6
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gclient sync
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# Build (disable snapshots for V8 > 4.4.9.1)
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make native library=shared snapshot=off -j8
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# Install to /usr
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sudo mkdir -p /usr/lib /usr/include
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sudo cp out/native/lib.target/lib*.so /usr/lib/
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sudo cp -R include/* /usr/include
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echo -e "create /usr/lib/libv8_libplatform.a\naddlib out/native/obj.target/tools/gyp/libv8_libplatform.a\nsave\nend" | sudo ar -M
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```
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Then add `extension=v8js.so` to your php.ini file. If you have a separate configuration for CLI, add it there also.
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* If the V8 library is newer than 4.4.9.1 you need to pass `snapshot=off` to
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`make`, otherwise the V8 library will not be usable
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(see V8 [Issue 4192](https://code.google.com/p/v8/issues/detail?id=4192))
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* If you don't want to overwrite the system copy of v8, replace `/usr` in
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the above commands with some other path like `/opt/v8` and then add
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`--with-v8js=/opt/v8` to the php-v8js `./configure` command below.
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* If you do that with a v8 library of 4.2 branch or newer, then you need
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to fix the RUNPATH header in the v8js.so library so the libicui18n.so
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is found. By default it is set to `$ORIGIN/lib.target/`, however the files
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lie side by side. Use `chrpath -r '$ORIGIN' libv8.so` to fix.
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`libv8_libplatform.a` should not be copied directly since it's a thin
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archive, i.e. it contains only pointers to the build objects, which
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otherwise must not be deleted. The simple mri-script converts the
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thin archive to a normal archive.
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Compile php-v8js itself
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-----------------------
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```
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cd /tmp
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git clone https://github.com/preillyme/v8js.git
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cd v8js
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phpize
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./configure
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make
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make test
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sudo make install
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```
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