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Asked: 2026-05-27T12:42:54+00:00

Does eatmydata work on OS X? If so, how do you enable it? On

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Does eatmydata work on OS X? If so, how do you enable it? On ELF-based systems, you would set the LD_PRELOAD environment variable, but I believe that OSX has a different kind of linker, and this wouldn’t work.

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  1. Editorial Team

    You need to set the DYLD_INSERT_LIBRARIES variable to point to the libeatmydata.dylib file, and set DYLD_FORCE_FLAT_NAMESPACE=1. For example: 

    $ DYLD_INSERT_LIBRARIES=/Users/lorin/libeatmydata/.libs/libeatmydata.dylib DYLD_FORCE_FLAT_NAMESPACE=1 ./fsynctest

    To build on OS X from the libeatmydata bzr repository, do: 

    $ bzr branch lp:libeatmydata
$ cd libeatmydata
$ autoreconf -i
$ ./configure
$ make

    The libeatmydata.dylib file will be in the .libs/ directory

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