Unable to install [email protected] npm about node-expat HOT 14 CLOSED

You're missing the libexpat header files.

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Sorry ! :)

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Does anyone mind telling me the rpm line for the distro? I'd like to add it to the README file.

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how do I go about getting the libexpat header files somewhere that node-waf can see them?

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In my Fedora fc16 it was easy as: sudo yum install expat-devel

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That worked great. Thanks so much.

On Mon, Dec 19, 2011 at 8:26 AM, Jakub Ráček <
[email protected]

wrote:

In my Fedora fc16 it was easy as: sudo yum install expat-devel

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Reply to this email directly or view it on GitHub:
#22 (comment)

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Can't get this to work on OSX.

So apparently the macports "expat-devel" is no longer available, and the "expat" port does install the .h file, but the npm install command still can't find it.

Anyone have any idea how to tell npm/node-waf where to look for the expat.h file?

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Hi eanticev, I have the exact same problem it seems. It appeared when updating to node 0.8 and its version of npm 1.1.32.

Nothing changed in the way I have libexpat and its headers installed. Previous macports install of "expat" also installed the headers. And I can confirm there're available in the standard location /opt/local/include/expat.h.

Why can't npm / node-expat find it there or what can I do to check the paths where it does look?

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Ah great, since when is /opt/local a standard prefix? :-)

If you confirm the path we could modify wscript like in issue #38.

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... since Macports is fairly common amongst OSX users :)

I would use Homebrew instead, which installs to /usr/local, but it can't handle universal binary well. With Macports it's easy to install universal binary. I need universal binary because node-expat (or node) seems to require a i386 build.

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Actually now that I've learned a bit more about the wscript, I figured this doesn't really need to be an update, most of us can add the "/opt/local/include" header path for OSX mac ports ourselves.

I added it to the "configure" set and it still wasn't found, so I just made it a non-mandatory check, and then it did install with npm. Basically I had to do this:
https://gist.github.com/2998471

However, it's not actually working - I think it's compiling with the wrong architecture.

I noticed this:
https://github.com/astro/node-expat/blob/master/tools/module.gyp#L59

How do I enable the x64 compilation in this case?

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first, thank you for coming up with this library!

as others mention, i too am having an issue on osx [snow leopard]. issue started after upgrading to node 8.0 from 6.15
in my case expat.h is installed correctly and found in /usr/include as expected by the wscript but node-expat (1.6) is not liking it. notice the error is "not installed " and not "not found" (Checking for header expat.h: not installed )

downgrading to 6.15 worked, so definitely something that changed since 6.15

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Like eanticev said already I think it's more an issue of architecture than location of the header file. If you look in the configure log you see an error that expat is compiled for the wrong architecture. In the direct output from npm this results in the error "header expat.h: not installed".

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yum install expat-devel

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