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Editorial Team
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Asked: 2026-06-01T01:29:29+00:00

I don’t know exactly when, but assume with upgrade from Snow Leopard to Lion

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I don’t know exactly when, but assume with upgrade from Snow Leopard to Lion (10.7.3) my system configuration seems to be messed up. When trying to install ree-1.8.7 I am running into the same problem whatever way I try:

Checking for required software...

* Non-broken C compiler... found at /usr/bin/gcc-4.2
* Non-broken C++ compiler... found at /usr/bin/g++-4.2
* The 'make' tool... found at /usr/bin/make
* The 'patch' tool... found at /usr/bin/patch
* Zlib development headers... found
* OpenSSL development headers... not found
* GNU Readline development headers... found

Some required software is not installed.

This happens when using rvm, rbenv or running the ree installer (went through all options). Though openssl is installed and working:

openssl version                                                                                                             
OpenSSL 0.9.8r 8 Feb 2011

I tried brewing openssl but that did not help either, so did remove it again.

I am quite desperate as I am not able to get it running. Any hints are appreciated.

EDIT: I missed the detail that I have only the xcode command-line tools installed instead of the full xcode package.

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1 Answer

  1. Editorial Team

    Don’t forget to install the proper libraries via https://github.com/kennethreitz/osx-gcc-installer. Obviously, the xcode-command-line tools that I used are missing the correct development headers.

    With the answer of mpapis it should have been possible to tell the compiler the correct location, but it seems that these options are ignored in latest installer. See this forum thread (Point 3 in first post): http://discuss.joyent.com/viewtopic.php?id=25862

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