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The current release of ACPICA is version 20230331
See the changes.txt file for changes in this version.

UNIX Source Code Packages

UNIX Format Source Code and Build Environment with Intel license (.TAR.GZ 1.9MB)
Includes entire ACPICA source, makefiles, and ACPI utilities.

UNIX Format Source Code and Build Environment with Dual license(.TAR.GZ 1.6MB)
Includes entire ACPICA source, makefiles, and ACPI utilities, with the dual license included in the module headers.
Important Note: The unix2 source package is deprecated since the dual-license is now included in all source modules (along with the Intel license). This package will be removed from future ACPICA releases.

UNIX Format ASL test suite(.TAR.GZ 2.2MB)
Test suite used to validate ACPICA. This includes ASL files and project makefiles.

The UNIX/Linux versions of the user-space ACPICA utilities can be built from the UNIX ACPICA source code package via the instructions below.

Requirements for generating ACPICA tools from source code:

  • Default required C compiler:
    • gcc: version 4 or greater
  • For iASL, these versions of Flex and Bison are required:
    • flex: version 2.5.3 or greater
    • bison: version 2.4.1 or greater
  • iASL has been generated with these recent versions of Flex and Bison:
    • flex: version 2.5.39
    • bison: version 3.0.4

Download and then unpack the UNIX Format Source Code and Build Environment package:

$ tar xzf acpica-unix-VERSION.tar.gz

To generate all of the tools:

$ cd acpica-unix-VERSION
$ make clean
$ make

To generate an individual tool (examples):

$ cd acpica-unix-VERSION
$ make iasl
$ make acpixtract
$ make acpiexec
$ make acpihelp
$ make acpisrc
$ make acpibin

To install the generated tools in /usr/bin:


$ cd acpica-unix-VERSION
$ make install