I cannot get pg-0.14.0 gem installed after Mountain Lion install

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I have been trying for some time now to get my Rails development environment back up since I upgraded from Lion to Mountain Lion. The problem is specifically installing the pg-0.14.0 (postgresql) gem.

I have tried the instructions on this post but with no luck. I have tried uninstalling Postgres with Homebrew and then reinstalling it. Nothing is working. If I try to install this gem I recieve this error:

Building native extensions. This could take a while... ERROR: Error installing pg: ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb checking for pg_config... yes Using config values from /usr/local/bin/pg_config checking for libpq-fe.h... yes checking for libpq/libpq-fs.h... yes checking for pg_config_manual.h... yes checking for PQconnectdb() in -lpq... no checking for PQconnectdb() in -llibpq... no checking for PQconnectdb() in -lms/libpq... no Can't find the PostgreSQL client library (libpq) * extconf.rb failed * Could not create Makefile due to some reason, probably lack of necessary libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.

Where can I find 'mkmf.log'? Can anyone give me a suggestion on how to install the pg gem again?

Thanks!

Nick

Posted 2012-08-08T02:36:02.650

Reputation: 101

Answers

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Do you have the Command Line Tools for Xcode installed? These would be required.

Try brew doctor it will diagnose common issues that would affect general compilation issues on Mac.

Max Howell

Posted 2012-08-08T02:36:02.650

Reputation: 587