Re: Error trying to install Ruby postgres gems on OS/X

On 29 January 2011 01:50, Mike Christensen <mike(at)kitchenpc(dot)com> wrote:
> Now I get:
>
> /Library/PostgreSQL/9.0>export ARCHFLAGS='-arch i386'
> /Library/PostgreSQL/9.0>sudo -E gem install postgres
> Password:
> Building native extensions.  This could take a while...
> ERROR:  Error installing postgres:
>        ERROR: Failed to build gem native extension.
>
> /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
> extconf.rb:73: command not found: pg_config --bindir
> extconf.rb:46: command not found: pg_config --includedir
> extconf.rb:53: command not found: pg_config --libdir
> checking for main() in -lpq... no
> *** 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.
>
> Provided configuration options:
>        --with-opt-dir
>        --without-opt-dir
>        --with-opt-include
>        --without-opt-include=${opt-dir}/include
>        --with-opt-lib
>        --without-opt-lib=${opt-dir}/lib
>        --with-make-prog
>        --without-make-prog
>        --srcdir=.
>        --curdir
>        --ruby=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
>        --with-pgsql-dir
>        --without-pgsql-dir
>        --with-pgsql-include
>        --without-pgsql-include=${pgsql-dir}/include
>        --with-pgsql-lib
>        --without-pgsql-lib=${pgsql-dir}/lib
>        --with-pqlib
>        --without-pqlib
> Could not find PostgreSQL build environment (libraries & headers):
> Makefile not created
>
>
> Gem files will remain installed in
> /Library/Ruby/Gems/1.8/gems/postgres-0.7.9.2008.01.28 for inspection.
> Results logged to
> /Library/Ruby/Gems/1.8/gems/postgres-0.7.9.2008.01.28/ext/gem_make.out
> /Library/PostgreSQL/9.0>
>
>
> On Fri, Jan 28, 2011 at 5:46 PM, Thom Brown <thom(at)linux(dot)com> wrote:
>> On 29 January 2011 01:37, Mike Christensen <mike(at)kitchenpc(dot)com> wrote:
>>> I'm trying to install the Postgres gem on OS/X but getting errors no
>>> matter what I try..  In theory, it should be as simple as "gem install
>>> postgres", correct?  Here's what I get:
>>>
>>>>sudo gem install postgres
>>> Building native extensions.  This could take a while...
>>> ERROR:  Error installing postgres:
>>>        ERROR: Failed to build gem native extension.
>>>
>>> /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
>>> extconf.rb:73: command not found: pg_config --bindir
>>>
>>>                ===========   WARNING   ===========
>>>
>>>                You are building this extension on OS X without setting the
>>>                ARCHFLAGS environment variable, and PostgreSQL does not appear
>>>                to have been built as a universal binary. If you are seeing this
>>>                message, that means that the build will probably fail.
>>>
>>>                Try setting the environment variable ARCHFLAGS
>>>                to '-arch i386' before building.
>>>
>>>                For example:
>>>                (in bash) $ export ARCHFLAGS='-arch i386'
>>>                (in tcsh) $ setenv ARCHFLAGS '-arch i386'
>>>
>>>                Then try building again.
>>>
>>>                ===================================
>>>                extconf.rb:46: command not found: pg_config --includedir
>>> extconf.rb:53: command not found: pg_config --libdir
>>> checking for main() in -lpq... no
>>> *** 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.
>>>
>>> Provided configuration options:
>>>        --with-opt-dir
>>>        --without-opt-dir
>>>        --with-opt-include
>>>        --without-opt-include=${opt-dir}/include
>>>        --with-opt-lib
>>>        --without-opt-lib=${opt-dir}/lib
>>>        --with-make-prog
>>>        --without-make-prog
>>>        --srcdir=.
>>>        --curdir
>>>        --ruby=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
>>>        --with-pgsql-dir
>>>        --without-pgsql-dir
>>>        --with-pgsql-include
>>>        --without-pgsql-include=${pgsql-dir}/include
>>>        --with-pgsql-lib
>>>        --without-pgsql-lib=${pgsql-dir}/lib
>>>        --with-pqlib
>>>        --without-pqlib
>>> Could not find PostgreSQL build environment (libraries & headers):
>>> Makefile not created
>>>
>>>
>>> Gem files will remain installed in
>>> /Library/Ruby/Gems/1.8/gems/postgres-0.7.9.2008.01.28 for inspection.
>>> Results logged to
>>> /Library/Ruby/Gems/1.8/gems/postgres-0.7.9.2008.01.28/ext/gem_make.out
>>>
>>> I have Postgres 9.0 installed at /Library/PostgreSQL/9.0.  Any ideas?
>>>
>>> Mike
>>
>> Hi Mike,
>>
>> Well the message does advise you to specify the architecture in the
>> environment variable.
>>
>> Try:
>>
>> export ARCHFLAGS='-arch i386'
>> sudo -E gem install postgres
>>
>> -E will allow the environment variable survive the sudo call.

You might have to tell it where the PostgreSQL binaries live first then:

export PATH=$PATH:/Library/PostgreSQL/9.0/bin

--
Thom Brown
Twitter: @darkixion
IRC (freenode): dark_ixion
Registered Linux user: #516935