GNAT Modified General Public License

The GNAT Modified General Public License (short: Modified GPL, GMGPL) is a version of the GNU General Public License specifically modified for the generic feature found in the Ada programming language.

The modification is as follows:

As a special exception, if other files instantiate generics from this unit, or you link this unit with other files to produce an executable, this unit does not by itself cause the resulting executable to be covered by the GNU General Public License. This exception does not however invalidate any other reasons why the executable file might be covered by the GNU Public License.

The GNAT Ada compiler can automate conformance checks for some GPL software license issues via a compiler directive. (Use pragma License (Modified_GPL); to activate the check against the Modified GPL. The GNAT Reference Manual documents the License pragma along with other compiler directives.

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    “Girls blush, sometimes, because they are alive,
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    The sudden blush devours them, neck and brow;
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    “Poetry presents indivisible wholes of human consciousness, modified and ordered by the stringent requirements of form. Prose, aiming at a definite and concrete goal, generally suppresses everything inessential to its purpose; poetry, existing only to exhibit itself as an aesthetic object, aims only at completeness and perfection of form.”
    —Richard Harter Fogle, U.S. critic, educator. The Imagery of Keats and Shelley, ch. 1, University of North Carolina Press (1949)

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