第5回 WordBench三鷹＠ミタカフェ LT 〜GPLってなに？〜

by Hiroki Saiki

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ୈ5ճ WordBenchࡾୋˏϛλΧϑΣ LT ʙGPLͬͯͳʹʁʙ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ᜊ໦߂थ IUUQTXXXGBDFCPPLDPNISLTBJLJ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ גࣜձࣾNHO IUUQTXXXNHONF

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ࣭໰Ͱ͢ɻ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ʮ(1-ʯͬͯ ฉ͍ͨ͜ͱ͋Γ·͔͢ʁ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ஌Βͳ͍ ɾТɾʆ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ Ͱ͢ΑͶʔɻ ɾТɾʆ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ Ͱ͸ࠓ೔͓΅͑ͯ ؼΓ·͠ΐ͏ʂ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ʮ(1-ʯͱ͍͏ͷ͸ ɹϥΠηϯεͷछྨͷͻͱͭͰ͢ɻ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ 8PSE1SFTT͸ (1-ϥΠηϯεͰ ഑෍͞Ε͍ͯ·͢ɻ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ 8PSE1SFTTΛར༻ͯ͠ ࡞ͬͨϓϩμΫτ͸ (1-ϥΠηϯε͕ ٻΊΒΕ·͢ɻ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ϥΠηϯεͬͯ ͲΜͳ΋ͷʁ ͦ΋ͦ΋

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ IUUQTKBXJLJQFEJBPSHXJLJιϑτ΢ΣΞϥΠηϯε ιϑτ΢ΣΞϥΠηϯε ιϑτ΢ΣΞϥΠηϯε (software license) ͸ɺίϯ ϐϡʔλͷιϑτ΢ΣΞʹ͍ͭͯɺιϑτ΢ΣΞར ༻ऀ͕९क͢΂͖ࣄ߲Λهࡌͨ͠จॻʢϥΠηϯεʣ Ͱ͋Δɻ ʰܖ໿ʱͱߟ͑Ε͹0,ʂ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ (1-ϥΠηϯεͬͯ ͲΜͳ΋ͷʁ ͡Ό͋

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ IUUQTKBXJLJQFEJBPSHXJLJ(/6@(FOFSBM@1VCMJD@-JDFOTF (/6(FOFSBM1VCMJD-JDFOTF GNU General Public License(GNU GPL΋͘͠͸୯ ʹGPLͱ΋)ͱ͸ɺGNUϓϩδΣΫτͷͨΊʹϦ νϟʔυɾετʔϧϚϯʹΑΓ࡞੒͞ΕͨϑϦʔι ϑτ΢ΣΞϥΠηϯεͰ͋Δɻ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ͳΔ΄ͲΘ͔ΒΜ ɾТɾʆ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ୺తʹઆ໌͢Δͱ ⿏ͲΜͳ໨తʹ΋࢖༻͢Δࣗ༝ ⿏ιʔείʔυΛݚڀ͠ɺվม͢Δࣗ༝ ⿏ଞͷਓʹ࠶഑෍͢Δࣗ༝ ⿏վมͨ͠΋ͷΛڞ༗͢Δࣗ༝ ্هʮͭͷࣗ༝ʯ͕कΒΕΔϥΠηϯεͰ͢ɻ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ͲΜͳ໨తʹ΋࢖༻͢Δࣗ༝ ⿏ྫ͑͹ʮެংྑଏʹ൓͢ΔαΠτʯͰ͋ͬͯ΋ ɹ࢖͍͍ͬͯ ⿏ٯʹ࢖༻໨తΛ੍ݶͯ͠͸͍͚ͳ͍

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ιʔείʔυΛݚڀ͠ɺվม͢Δࣗ༝ ⿏ιʔείʔυΛվมͯ͠΋0, ⿏ιʔείʔυ͸ެ։͞ΕΔલఏ ⿏ٯʹվม͞ΕΔ͜ͱΛ੍ݶͯ͠͸͍͚ͳ͍

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ଞͷਓʹ࠶഑෍͢Δࣗ༝ ⿏ଞͷਓʹ࠶഑෍ͯ͠΋0, ⿏ೖखͨ͠ιʔείʔυΛެ։ͯ͠΋0, ⿏ٯʹ࠶഑෍Λ੍ݶͯ͠͸͍͚ͳ͍

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ վมͨ͠΋ͷΛڞ༗͢Δࣗ༝ ⿏վมͨ͠΋ͷΛެ։ɾ࠶഑෍ͯ͠΋0, ⿏ڞ༗͞ΕΔͷΛ੍ݶͯ͠͸͍͚ͳ͍

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ͳΜͰͦΜͳϥΠηϯεͰ ഑෍͢Δͷʁ ɾТɾʆ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ (1-Ͱ഑෍͢Δཧ༝ ⿏ίϐʔϨϑτ ⿏ϓϩάϥϚʔ͕ιʔείʔυΛࣗ༝ʹ ɹར༻͠߹͏

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ίϐʔϨϑτ ⿏੍࡞෺ͷվม͞Εͨ΋ͷɾ೿ੜϓϩμΫτʹ ɹؔͯ͠΋ɺ΋ͱͷ੍࡞෺ͱಉҰͷࣗ༝ ࢖༻ɾ ɹվมɾ࠶഑෍ɾڞ༗ͷࣗ༝ ΛೝΊͳ͚Ε͹ ɹ͍͚ͳ͍ ˠ(1-ͷ΋ͷΛϕʔεʹ࡞ͬͨΒͦΕ͸(1-

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ (1-8PSE1SFTTͭͷࣗ༝ͱϏδωεϞσϧ8PSE$BNQ5PLZP

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ϓϩάϥϚʔ͕ιʔείʔυΛࣗ༝ʹར༻͠߹͏ ˠΦʔϓϯιʔεɾιϑτ΢ΣΞͷߟ͑ ⿏Φʔϓϯιʔεɾιϑτ΢ΣΞͷߟ͑ ⿏Φʔϓϯιʔειϑτ΢ΣΞΛಠ઎ͤͣ͞ɺ ɹΑΓ޿͘Φʔϓϯιʔειϑτ΢ΣΞΛൃల ɹ͍ͤͨ͞ͱͷ૝͍

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ͑ʔΊΜͲ͍͘͞ʜ ɾТɾʆ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ λμͰ഑ΕͪΌ͏Μ͡Ό ࢓ࣄɾ঎ചʹͳΒͳ͍Αʜ ɾТɾʆ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ͍͍͑ɻ ʉʔʉ Ŭźž

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ιʔείʔυΛެ։͢Δٛ຿ ͕͋Δͷ͸ιϑτ΢ΣΞࣗମ ͷ഑෍ઌʹରͯ͠ͷΈ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ͭ·ΓɺҰൠతͳ ΫϥΠΞϯτϫʔΫͰ(1-ͷ ϓϩμΫτΛ੍࡞ͨ͠৔߹

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ΫϥΠΞϯτ͞Μʹରͯ͠͸ ιʔείʔυͷ ެ։ͷٛ຿͕ൃੜ͠·͕͢

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ҰൠͷϢʔβʔʹ ιϑτ΢ΣΞΛ഑෍͍ͯ͠Δ Θ͚Ͱ͸ͳ͍ͷͰɺ ެ։͢Δٛ຿͸ൃੜ͠·ͤΜɻ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ 8PSE1SFTTͰ࡞ͬͨ΋ͷΛ (1-ʹ͢ΔϝϦοτ͋Δͷ ɾТɾʆ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ͪΌΜͱ͋Γ·͢ɻ ʉʔʉ Ŭźž

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ϥΠηϯεΛਖ਼͘͠कΔ͜ͱͰ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ɾެࣜσΟϨΫτϦʹܝࡌͰ͖Δ ɾެࣜͳίϛϡχςΟ׆ಈʹࢀՃͰ͖Δ ɾίϛϡχςΟͷԠԉ͕ಘΒΕΔ ɾެࣜΠϕϯτͰ঺հ͞ΕΔ͔΋ʁ ɾެࣜΠϕϯτͰ஻ΕΔʂ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ Θ͔Βͳ͔ͬͨΒ ελοϑʹฉ͚͹͓Lʂ ʉʔʉ C

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ·ͱΊ ɾ8PSE1SFTT͸(1- ɾ8PSE1SFTTͰ࡞ͬͨϓϩμΫτ΋(1- ɾউखͳ੍ݶΛ͚ͭͯ͸μϝʂ ɾͨͩ͠ʮ഑෍ͨ͠৔߹ʯʹݶΒΕΔ ɾͪΌΜͱ͓࢓ࣄͰ࢖͑·͢Αʂ ɾϥΠηϯε͸ܖ໿Ͱ͢

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ (1-8PSE1SFTTͭͷࣗ༝ͱϏδωεϞσϧ ࢀߟʹͳΔεϥΠυɺϒϩάهࣄ ɾ 8PSE$BNQ,BOTBJσβΠφʔ͕ײͨ͡l(1-zͱ8PSE1SFTT ɾ (1- ɾ ૊௕αΠτͷ࡞Γํ ɾ <อଘ൛>8PSE1SFTTςʔϚͷϥΠηϯεɺ(1-ͷ͓͸ͳ͠ ɾ ͳͲ (/6ϥΠηϯεʹؔͯ͠Α͘ฉ͔ΕΔ࣭໰ ɾ

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ୈճ8PSE#FODIࡾୋˏϛλΧϑΣʙ(1-ͬͯͳʹʁʙ ༗ྉςʔϚൢചΛߦ͏ਓ͕஌͓ͬͯ͘΂͖͜ͱ ࢀߟʹͳΔεϥΠυɺϒϩάهࣄ ɾ ࢖͏αΠτ਺ʹΑֹͬͯۚΛม͑Δൢചํ๏ͱ(1-ɻҧ൓ͷݟ෼͚ํɻ ɾ 8PSE1SFTTͷϥΠηϯεΛ෼͔Γ΍͘͢ղઆͨ͠ ʮ͸͡Ίͯͷ(1-ʯ͕ެ։͞ΕΔ ɾ ͸͡Ίͯͷ(1- ɾ ͳͥ8PSE1SFTTςʔϚ͸(1-ϥΠηϯεͰ΋঎ച଍ΓಘΔ͔ ɾ ͳͲ