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Editorial Team
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Asked: 2026-05-13T16:15:38+00:00

sudo env ARCHFLAGS=-arch x86_64 gem install do_sqlite3 Building native extensions. This could take a

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sudo env ARCHFLAGS="-arch x86_64" gem install do_sqlite3 
Building native extensions.  This could take a while...
ERROR:  Error installing do_sqlite3:
    ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
checking for sqlite3.h... yes
checking for sqlite3_open() in -lsqlite3... 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.

I have sqlite3-ruby installed as well as the header files, but for some reason it fails when checking for sqlite3_open()

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1 Answer

  1. Editorial Team

    I am having the same issue:

    sudo env ARCHFLAGS="-arch x86_64" gem install do_sqlite3
Building native extensions.  This could take a while...
ERROR:  Error installing do_sqlite3:
ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h

Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/do_sqlite3-0.10.1.1 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/do_sqlite3-0.10.1.1/ext/do_sqlite3/gem_make.out

    I am running Snow Leopard. I’m not sure about previous installations of sqlite3 but I did try this:

    port search sqlite

    And it returned the following (among others):

    ...
sqlite3 @3.6.17 (databases)
an embedded SQL database engine

    To be honest I’m not sure what all this means. What would anyone suggest for getting do_sqlite3 installed for use in Rails 3 with DataMapper? (Also, running it without the ‘env ARCHFLAGS=”-arch x86_64″‘ gives the same errors.)

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