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l42c07.pdf
moreau1996 - 2013-08-15
http://kadenfan.hitachi.co.jp/.../l42c07.pdf - 16.45MB - キャッシュ
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80page / 16.45MB
This General Public License does not permit incorporatingyour program into proprietary programs. If your programis a subroutine library, you may consider it more useful topermit linking proprietary applications with the library. Ifthis is what you want to do, use the GNU Lesser GeneralPublic License instead of this License.GNU LESSER GENERAL PUBLIC LICENSEVersion 2.1, February 1999Copyright (C) 1991, 1999 Free Software Foundation, Inc.51 Franklin Street, Fifth Floor, Boston, MA 02110-1301USA Everyone is permitted to copy and distribute verbatimcopies of this license document, but changing it is not allowed.[This is the Àrst released version of the Lesser GPL. Italso counts as the successor of the GNU Library PublicLicense, version 2, hence the version number 2.1.]PreambleThe licenses for most software are designed to take awayyour freedom to share and change it. By contrast, theGNU General Public Licenses are intended to guaranteeyour freedom to share and change free software--to makesure the software is free for all its users.This license, the Lesser General Public License, appliesto some specially designated software packages--typicallylibraries--of the Free Software Foundation and otherauthors who decide to use it. You can use it too, but wesuggest you Àrst think carefully about whether this licenseor the ordinary General Public License is the betterstrategy to use in any particular case, based on theexplanations below.When we speak of free software, we are referring tofreedom of use, not price. Our General Public Licensesare designed to make sure that you have the freedom todistribute copies of free software (and charge for thisservice if you wish); that you receive source code or canget it if you want it; that you can change the software anduse pieces of it in new free programs; and that you areinformed that you can do these things.To protect your rights, we need to make restrictions thatforbid distributors to deny you these rights or to ask you tosurrender these rights. These restrictions translate tocertain responsibilities for you if you distribute copies ofthe library or if you modify it.is modiÀed by someone else and passed on, the recipientsshould know that what they have is not the original version,so that the original author’s reputation will not be affectedby problems that might be introduced by others.Finally, software patents pose a constant threat to theexistence of any free program. We wish to make sure thata company cannot effectively restrict the users of a freeprogram by obtaining a restrictive license from a patentholder. Therefore, we insist that any patent licenseobtained for a version of the library must be consistentwith the full freedom of use speciÀed in this license.かんたん操作ガイMost GNU software, including some libraries, is coveredby the ordinary GNU General Public License. This license,the GNU Lesser General Public License, applies tocertain designated libraries, and is quite different from theordinary General Public License. We use this license forcertain libraries in order to permit linking those librariesinto non-free programs.When a program is linked with a library, whether staticallyor using a shared library, the combination of the two islegally speaking a combined work, a derivative of theoriginal library. The ordinary General Public Licensetherefore permits such linking only if the entirecombination Àts its criteria of freedom. The Lesser GeneralPublic License permits more lax criteria for linking othercode with the library.We call this license the ”Lesser” General Public Licensebecause it does Less to protect the user’s freedom thanthe ordinary General Public License. It also providesother free software developers Less of an advantage overcompeting non-free programs. These disadvantages arethe reason we use the ordinary General PublicLicense for many libraries. However, the Lesser licenseprovides advantages in certain special circumstances.For example, on rare occasions, there may be a specialneed to encourage the widest possible use of a certainlibrary, so that it becomes a de-facto standard. To achievethis, non-free programs must be allowed to use the library.A more frequent case is that a free library does the samejob as widely used non-free libraries. In this case, there islittle to gain by limiting the free library to free software only,so we use the Lesser General Public License.For example, if you distribute copies of the library, whethergratis or for a fee, you must give the recipients all therights that we gave you. You must make sure that they,too, receive or can get the source code. If you link othercode with the library, you must provide complete objectÀles to the recipients, so that they can relink them with thelibrary after making changes to the library and recompilingit. And you must show them these terms so they knowtheir rights.We protect your rights with a two-step method: (1) wecopyright the library, and (2) we offer you this license,which gives you legal permission to copy, distribute and/ormodify the library.The precise terms and conditions for copying, distributionand modiÀcation follow. Pay close attention to theはじめに準備基本操作便利な使い方困ったときはその他In other cases, permission to use a particular library innon-free programs enables a greater number of people touse a large body of free software. For example,permission to use the GNU C Library in non-free programsenables many more people to use the whole GNUoperating system, as well as its variant, the GNU/Linuxoperating system.To protect each distributor, we want to make it very clear thatthere is no warranty for the free library. Also, if the libraryドAlthough the Lesser General Public License is Lessprotective of the users’ freedom, it does ensure that theuser of a program that is linked with the Library has thefreedom and the wherewithal to run that program using amodiÀed version of the Library.71
