2015-03-09 12:43:58 +00:00
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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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2015-08-19 08:46:48 +00:00
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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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2015-03-09 12:43:58 +00:00
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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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2015-08-19 08:46:48 +00:00
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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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2015-03-09 12:43:58 +00:00
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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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