{"bugs":[],"categories":[{"categoryid":393,"name":"dev-libs","summary":"The dev-libs category contains various miscellaneous programming libraries."},{"categoryid":318,"name":"sci-libs","summary":"The sci-libs category contains various science-related libraries."},{"categoryid":317,"name":"sci-mathematics","summary":"The sci-mathematics category contains mathematical software."}],"changelog":[{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"b6cd477f4df121115b2ce745a42afdf93d07f81b","committime":"2026-01-01T14:16:23","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"dima@pasechnik.info","authorname":"Dima Pasechnik","body":"Closes: https:\/\/github.com\/gentoo\/gentoo\/pull\/45209\nSigned-off-by: Dima Pasechnik <dima@pasechnik.info>\nSigned-off-by: Michael Orlitzky <mjo@gentoo.org>","commitid":"1eaf6e5445484b218188989170f8ece7ac63b907","committime":"2025-12-30T18:20:58","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: add 094n"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"a198e862478387fe37b4d232d51a3edb558cd3e0","committime":"2025-12-19T10:01:01","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"grobian@gentoo.org","authorname":"Fabian Groffen","body":"Bug: https:\/\/bugs.gentoo.org\/473598\nBug: https:\/\/bugs.gentoo.org\/720224\nSigned-off-by: Fabian Groffen <grobian@gentoo.org>","commitid":"2d25fad95cbaa525c8945d8e582c749d49524f49","committime":"2025-12-19T09:25:43","packageid":56517,"repoid":1,"summary":"*\/*: drop *-linux keywords"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"68e9c347b69dd57234f61e4c1d2500d9a4ab0258","committime":"2025-06-20T19:39:32","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"arthurzam@gentoo.org","authorname":"Arthur Zamarin","body":"Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>","commitid":"59231e3dc0a1e6ad3ad359627bd7a426eed2f833","committime":"2025-06-20T17:05:29","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: drop 094m-r1, EAPI=7--"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"63e7f2106f0017c5f69f76df78293e9c3743a28b","committime":"2024-12-03T08:05:42","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"juippis@gentoo.org","authorname":"Joonas Niilola","body":"Signed-off-by: Joonas Niilola <juippis@gentoo.org>","commitid":"6a3140340ce741a5d963c1378baddbab66e936f8","committime":"2024-12-03T07:46:18","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: Stabilize 094m-r2 amd64, #945560"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"b801f96c3e6ea0d95abbf4015ca938c8482a4b45","committime":"2024-03-22T05:48:50","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"eschwartz93@gmail.com","authorname":"Eli Schwartz","body":"Signed-off-by: Eli Schwartz <eschwartz93@gmail.com>\nSigned-off-by: Sam James <sam@gentoo.org>","commitid":"05405d84105e30ec29a354539a921c08aeef2c40","committime":"2024-03-21T06:20:36","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: update EAPI 7 -> 8"},{"authoremail":"eschwartz93@gmail.com","authorname":"Eli Schwartz","body":"Needed to e.g. pass LTO warning flags through to the linker.\n\nSigned-off-by: Eli Schwartz <eschwartz93@gmail.com>\nSigned-off-by: Sam James <sam@gentoo.org>","commitid":"90b59711f3e353e4a8a07488a8adf1c655caa99b","committime":"2024-03-21T06:18:49","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: make sure elibtoolize is applied"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"f2979793991144637956e4225ce4d0235900c1a2","committime":"2023-06-09T15:16:56","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"arthurzam@gentoo.org","authorname":"Arthur Zamarin","body":"Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>","commitid":"8e7bbdca9777c7fe476e1826839250eeddbad954","committime":"2023-06-03T14:50:45","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: destabilize for ~x86"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"ac99f3e2c1aca8ba81365f4eb3119b67810fe296","committime":"2022-08-03T20:46:57","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"mjo@gentoo.org","authorname":"Michael Orlitzky","body":"Closes: https:\/\/bugs.gentoo.org\/862726\nSigned-off-by: Michael Orlitzky <mjo@gentoo.org>","commitid":"964fdea84e7fe6bd6301c0e7236c77e99dac3568","committime":"2022-08-03T20:29:24","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: hide spurious QA warning about pkg-config."},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"fdfdf77044d3ef5e2c5e157f7745f8f58d77ab8e","committime":"2021-11-22T03:21:27","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"39da18b49f0f1c5486a1cddc64d32bac28abc59b","committime":"2021-11-19T00:07:44","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"gyakovlev@gentoo.org","authorname":"Georgy Yakovlev","body":"Bug: https:\/\/bugs.gentoo.org\/823768\nSigned-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>","commitid":"93c251011e2dd26ca7d6be195caf9ac8b0ccb145","committime":"2021-11-18T23:44:19","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: de-stabilize for ~ppc, bug #823768"},{"authoremail":"alex.fan.q@gmail.com","authorname":"Alex Fan","body":"Signed-off-by: Alex Fan <alex.fan.q@gmail.com>\nSigned-off-by: Yixun Lan <dlan@gentoo.org>","commitid":"c85a93f09ffb5bf10606fc1204a7f2727f300519","committime":"2021-11-18T07:22:23","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: keyword 094m-r1 for ~riscv"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"fd9c1bd36f400d16e2ef758711b2144e3cd6ed11","committime":"2021-05-27T21:19:58","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"jakov.smolic@sartura.hr","authorname":"Jakov Smolic","body":"Signed-off-by: Jakov Smolic <jakov.smolic@sartura.hr>\nSigned-off-by: David Seifert <soap@gentoo.org>","commitid":"626f48ca9f8b033b861d5b308eff228ef15e8a14","committime":"2021-05-27T21:06:17","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: Remove old 094j"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"1ef498ca2454f4fb3e014d92ba1653a64232c830","committime":"2021-05-27T19:34:59","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"sam@gentoo.org","authorname":"Sam James","body":"Signed-off-by: Sam James <sam@gentoo.org>","commitid":"857a2c80089fe8fbf55a886e45d5422aa59bb33c","committime":"2021-05-27T19:21:55","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: Stabilize 094m-r1 ppc, #792069"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"a2e38b02a85801b4dc906da9d8dda4f2dc1049e9","committime":"2021-05-26T07:05:02","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"ago@gentoo.org","authorname":"Agostino Sarubbo","body":"Package-Manager: Portage-3.0.13, Repoman-3.0.2\nRepoMan-Options: --include-arches=\"x86\"\nSigned-off-by: Agostino Sarubbo <ago@gentoo.org>","commitid":"671337739ea53764348a4c2649a44176079ac688","committime":"2021-05-26T06:51:11","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: x86 stable wrt bug #792069"},{"authoremail":"ago@gentoo.org","authorname":"Agostino Sarubbo","body":"Package-Manager: Portage-3.0.13, Repoman-3.0.2\nRepoMan-Options: --include-arches=\"amd64\"\nSigned-off-by: Agostino Sarubbo <ago@gentoo.org>","commitid":"1632ae4892f7e0ef46ac61da4660a0374c63bfb2","committime":"2021-05-26T06:47:50","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: amd64 stable wrt bug #792069"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"3a03f7110d1146dacb2d62a0f659d769f0d5508c","committime":"2020-12-14T23:34:58","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"mjo@gentoo.org","authorname":"Michael Orlitzky","body":"François Bissey came up with a better way (using bash substrings) to\ncompute MY_PV from PV in these ebuilds. It won't work forever, but it\nshould be OK for a few more versions, and the failure mode is nicer\nthan the present one of silently downloading the wrong version.\n\nBug: https:\/\/bugs.gentoo.org\/759520\nPackage-Manager: Portage-3.0.9, Repoman-3.0.2\nSigned-off-by: Michael Orlitzky <mjo@gentoo.org>","commitid":"0cd3b9d029b36e2f679143bbd9901c9493746390","committime":"2020-12-14T14:39:18","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: make MY_PV assignment more reliable."},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"1c07105574dc1f0b8f89e3e9ad00c17d54d01768","committime":"2020-12-12T12:34:58","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"mjo@gentoo.org","authorname":"Michael Orlitzky","body":"There's an internal variable in this ebuild that needs to be updated\nfor every new version... and wasn't. Thanks to Jouni Kosonen who\nnoticed the mistake.\n\nCloses: https:\/\/bugs.gentoo.org\/759520\nPackage-Manager: Portage-3.0.9, Repoman-3.0.2\nSigned-off-by: Michael Orlitzky <mjo@gentoo.org>","commitid":"680b05608511a8426e41e5be14b265dd765960f3","committime":"2020-12-12T12:14:42","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: new 094m revision to install the correct version."},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"91c5b74204d4eaadad6971c9a170cf1da295bbeb","committime":"2020-12-09T20:35:00","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"mjo@gentoo.org","authorname":"Michael Orlitzky","body":"This version moves the header files to a soon-to-be-standard location\n(so that Debian, Fedora, et cetera don't all have to move them) and is\ngoing to break some consumers as a result. For that reason, I opted\nnot to package the previous version right away. This version, however,\ncontains a critical bug fix as well. So users need the option to\nupgrade.\n\nPackage-Manager: Portage-3.0.9, Repoman-3.0.2\nSigned-off-by: Michael Orlitzky <mjo@gentoo.org>","commitid":"dce36de55ade7598eaddbeb2047bea53a498056a","committime":"2020-12-09T20:13:43","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: new upstream version 0.94m."},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"96ea8f48ba04942a9b0af5857b9acf74148257df","committime":"2020-04-13T18:06:34","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"61199532c1900ef40c874ab5f60b90ec58bb004d","committime":"2020-04-13T17:36:30","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"mjo@gentoo.org","authorname":"Michael Orlitzky","body":"Package-Manager: Portage-2.3.89, Repoman-2.3.20\nSigned-off-by: Michael Orlitzky <mjo@gentoo.org>","commitid":"2163c36dc482a467db9efadc85120bd49a42e046","committime":"2020-04-13T17:29:06","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: remove old \"unused\" versions and files."},{"authoremail":"ago@gentoo.org","authorname":"Agostino Sarubbo","body":"Package-Manager: Portage-2.3.89, Repoman-2.3.20\nRepoMan-Options: --include-arches=\"x86\"\nSigned-off-by: Agostino Sarubbo <ago@gentoo.org>","commitid":"de846686835d5c6968d236b6f8833add50f1cf86","committime":"2020-04-13T17:21:34","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: x86 stable wrt bug #716360"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"b2a42d4ad02ff4d0c884af8887ef0f852d462188","committime":"2020-04-08T10:06:25","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"ago@gentoo.org","authorname":"Agostino Sarubbo","body":"Package-Manager: Portage-2.3.89, Repoman-2.3.20\nRepoMan-Options: --include-arches=\"ppc\"\nSigned-off-by: Agostino Sarubbo <ago@gentoo.org>","commitid":"1fde9cad54f517548b9e8f038abe110274911f59","committime":"2020-04-08T09:50:04","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: ppc stable wrt bug #716360"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"9589e4e28b5d8583a4c7d502aab5984d097f8e9e","committime":"2020-04-07T11:06:27","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"ago@gentoo.org","authorname":"Agostino Sarubbo","body":"Package-Manager: Portage-2.3.89, Repoman-2.3.20\nRepoMan-Options: --include-arches=\"amd64\"\nSigned-off-by: Agostino Sarubbo <ago@gentoo.org>","commitid":"aea5c7fe483b536e152383a64ff9f1662202a61d","committime":"2020-04-07T10:32:01","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: amd64 stable wrt bug #716360"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"87abf309c44acc27d55223debbcd96926a212e0a","committime":"2020-02-15T10:36:58","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"soap@gentoo.org","authorname":"David Seifert","body":"Package-Manager: Portage-2.3.88, Repoman-2.3.20\nSigned-off-by: David Seifert <soap@gentoo.org>","commitid":"ca19a6e6b5cf553a54845d3c5fb1c43e14494d47","committime":"2020-02-15T10:02:19","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: [QA] inherit ltprune.eclass directly"},{"authoremail":"repomirrorci@gentoo.org","authorname":"Repository mirror & CI","commitid":"95ced634d6791942362f0100a1aeea3d06fbd1e9","committime":"2020-01-15T14:05:54","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"mjo@gentoo.org","authorname":"Michael Orlitzky","body":"François Bissey had an ebuild for the latest version of this package in\nthe sage-on-gentoo overlay, so I've imported it with minor changes:\n\n  * Updated to EAPI=7 (no related changes).\n  * Dropped the unused autotools.eclass inherit.\n  * Changed GPL-2 to GPL-2+, since the files that do have copyright\n    headers have the \"or any later version\" bit.\n  * Dropped the DOCS declaration; they're all covered by einstalldocs.\n  * Added IUSE=examples.\n  * Reworked the documentation\/example installation logic. The new\n    autotools build system installs everything by default, so if\n    the user doesn't want something, we have to kill it from $ED.\n\nI've also added the upstream remote to metadata.xml, and added myself\nand François as maintainers in the future.\n\nSageMath uses two cddlib executables only present as of this version,\nso it's a prerequisite for moving more of SageMath into the tree.\n\nCloses: https:\/\/bugs.gentoo.org\/705218\nPackage-Manager: Portage-2.3.79, Repoman-2.3.16\nSigned-off-by: Michael Orlitzky <mjo@gentoo.org>","commitid":"35aa5d3b8188a15dfee2f12a90bf1abe99014716","committime":"2020-01-15T01:11:13","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: new version 094j."},{"authoremail":"repo-qa-checks@gentoo.org","authorname":"Repository QA checks","commitid":"847cb877c2a72e061b98519df46b40bd43d3e215","committime":"2017-07-31T18:23:27","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"bicatali@gentoo.org","authorname":"Sébastien Fabbro","body":"Package-Manager: Portage-2.3.6, Repoman-2.3.3","commitid":"78e3a61a68c916450aa4e5ceecd20041583af901","committime":"2017-07-29T23:25:17","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: version bump"},{"authoremail":"repo-qa-checks@gentoo.org","authorname":"Repository QA checks","commitid":"25093d6359f778b8d1052f66ba9e26fc29ded21a","committime":"2017-02-28T20:35:29","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"robbat2@gentoo.org","authorname":"Robin H. Johnson","body":"Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>","commitid":"61b861acd7b49083dab687e133f30f3331cb7480","committime":"2017-02-28T19:47:27","packageid":56517,"repoid":1,"summary":"Drop $Id$ per council decision in bug #611234."},{"authoremail":"repo-qa-checks@gentoo.org","authorname":"Repository QA checks","commitid":"793245c429ec825e919af922d7f22a4ff400e8af","committime":"2016-03-02T19:42:26","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"maekke@gentoo.org","authorname":"Markus Meier","body":"Package-Manager: portage-2.2.27\nRepoMan-Options: --include-arches=\"arm\"","commitid":"9569f85a6ad7321ff29998dffcb05561fdb44eaf","committime":"2016-03-02T19:30:39","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: add ~arm, bug #573324"},{"authoremail":"repo-qa-checks@gentoo.org","authorname":"Repository QA checks","commitid":"fb3258b297a20d5e3eb663a5e61daf5caeed21ce","committime":"2015-11-12T10:21:50","packageid":56517,"repoid":1,"summary":"Merge updates from master"},{"authoremail":"ago@gentoo.org","authorname":"Agostino Sarubbo","body":"Package-Manager: portage-2.2.20.1\nRepoMan-Options: --include-arches=\"ppc\"","commitid":"95519249c6871991ba1a72c830a1d5bc14f49024","committime":"2015-11-12T10:10:51","packageid":56517,"repoid":1,"summary":"sci-libs\/cddlib: ppc stable wrt bug #556418"},{"authoremail":"repo-qa-checks@gentoo.org","authorname":"Repository QA checks","commitid":"945f0d2a26da4f944fd06ad6a874f69d37ce1e06","committime":"2015-08-09T09:26:46","packageid":56517,"repoid":1,"summary":"2015-08-09 09:26:21 UTC"},{"authoremail":"robbat2@gentoo.org","authorname":"Robin H. Johnson","body":"This commit represents a new era for Gentoo:\nStoring the gentoo-x86 tree in Git, as converted from CVS.\n\nThis commit is the start of the NEW history.\nAny historical data is intended to be grafted onto this point.\n\nCreation process:\n1. Take final CVS checkout snapshot\n2. Remove ALL ChangeLog* files\n3. Transform all Manifests to thin\n4. Remove empty Manifests\n5. Convert all stale $Header$\/$Id$ CVS keywords to non-expanded Git $Id$\n5.1. Do not touch files with -kb\/-ko keyword flags.\n\nSigned-off-by: Robin H. Johnson <robbat2@gentoo.org>\nX-Thanks: Alec Warner <antarus@gentoo.org> - did the GSoC 2006 migration tests\nX-Thanks: Robin H. Johnson <robbat2@gentoo.org> - infra guy, herding this project\nX-Thanks: Nguyen Thai Ngoc Duy <pclouds@gentoo.org> - Former Gentoo developer, wrote Git features for the migration\nX-Thanks: Brian Harring <ferringb@gentoo.org> - wrote much python to improve cvs2svn\nX-Thanks: Rich Freeman <rich0@gentoo.org> - validation scripts\nX-Thanks: Patrick Lauer <patrick@gentoo.org> - Gentoo dev, running new 2014 work in migration\nX-Thanks: Michał Górny <mgorny@gentoo.org> - scripts, QA, nagging\nX-Thanks: All of other Gentoo developers - many ideas and lots of paint on the bikeshed","commitid":"56bd759df1d0c750a065b8c845e93d5dfa6b549d","committime":"2015-08-08T20:49:04","packageid":56517,"repoid":1,"summary":"proj\/gentoo: Initial commit"},{"authoremail":"repo-qa-checks@gentoo.org","authorname":"Repository QA checks","commitid":"a637bd65b7fef8e2be4e7fc6e9097479372e0e2e","committime":"2015-06-19T16:38:33","packageid":56517,"repoid":1,"summary":"2015-06-19 16:35:30 UTC"}],"dependencies":[{"block":false,"categoryid":393,"description":"Library for arbitrary-precision arithmetic on different type of numbers","ebuildids":[820277,885900],"firstseen":"2010-05-04T00:54:45.661860","maintainer":"toolchain@gentoo.org","maintainername":"Gentoo Toolchain Project","name":"gmp","packageid":55512}],"depending":[{"block":false,"categoryid":317,"description":"Computer algebra system for polynomial computations","ebuildids":[861903,861903,871752,871752],"firstseen":"2010-05-04T00:54:45.661860","maintainer":"tomka@gentoo.org","maintainername":"Thomas Kahle","name":"singular","packageid":55483},{"block":false,"categoryid":317,"description":"Computing Triangulations Of Point Configurations and Oriented Matroids","ebuildids":[748998,748998,826259,826259],"firstseen":"2010-11-10T14:55:55.581632","maintainer":"tomka@gentoo.org","maintainername":"Thomas Kahle","name":"topcom","packageid":56528},{"block":false,"categoryid":317,"description":"Compute Groebner fans and tropical varieties","ebuildids":[861904,861904,887541,887541],"firstseen":"2010-11-13T14:34:00.987409","maintainer":"tomka@gentoo.org","maintainername":"Thomas Kahle","name":"gfan","packageid":56539,"summary":"Gfan is a software package for computing Gröbner fans and tropical varieties. These are polyhedral fans associated to polynomial ideals. The maximal cones of a Gröbner fan are in bijection with the marked reduced Gröbner bases of its defining ideal. The software computes all marked reduced Gröbner bases of an ideal. Their union is a universal Gröbner basis. The tropical variety of a polynomial ideal is a certain subcomplex of the Gröbner fan. Gfan contains algorithms for computing this complex for general ideals and specialized algorithms for tropical curves, tropical hypersurfaces and tropical varieties of prime ideals. In addition to the above core functions the package contains many tools which are useful in the study of Gröbner bases, initial ideals and tropical geometry. The full list of commands can be found in Appendix B of the manual. For ordinary Gröbner basis computations Gfan is not competitive in speed compared to programs such as CoCoA, Singular and Macaulay2."},{"block":false,"categoryid":317,"description":"Tool for polyhedral geometry and combinatorics","ebuildids":[845622,845622,871194,871194,882915,882915],"firstseen":"2023-11-13T22:58:41.485768","name":"polymake","packageid":76731,"summary":"Polymake is open source software for research in polyhedral geometry. It deals with polytopes, polyhedra, and fans as well as simplicial complexes, matroids, graphs, tropical hypersurfaces, and other objects."}],"ebuilds":[{"archs":["~amd64","~arm","~ppc","~riscv","~x86"],"ebuildid":885900,"firstseen":"2026-01-01T14:28:21.327414","license":"GPL-2+","moddate":"2026-03-22T20:20:57","packageid":56517,"repoid":1,"slot":"0","uses":["doc","examples","static-libs","tools"],"version":"094n"},{"archs":["amd64","~arm","~ppc","~riscv","~x86"],"ebuildid":820277,"firstseen":"2024-03-22T05:51:43.203305","license":"GPL-2+","moddate":"2026-03-22T20:20:57","packageid":56517,"repoid":1,"slot":"0","uses":["doc","examples","static-libs","tools"],"version":"094m-r2"}],"masks":[],"package":{"categoryid":318,"description":"C library implementing the Double Description Method","firstseen":"2010-11-09T14:34:10.608032","maintainer":"sci@gentoo.org","maintainername":"Gentoo Science Project","name":"cddlib","packageid":56517,"summary":"The C-library cddlib is a C implementation of the Double Description Method of Motzkin et al. for generating all vertices (i.e. extreme points) and extreme rays of a general convex polyhedron in R^d given by a system of linear inequalities: P = { x=(x1, ..., xd)^T : b - A x >= 0 } where A is a given m x d real matrix, b is a given m-vector and 0 is the m-vector of all zeros. The program can be used for the reverse operation (i.e. convex hull computation). This means that one can move back and forth between an inequality representation and a generator (i.e. vertex and ray) representation of a polyhedron with cdd. Also, cdd can solve a linear programming problem, i.e. a problem of maximizing and minimizing a linear function over P."},"rdependencies":[{"block":false,"categoryid":393,"description":"Library for arbitrary-precision arithmetic on different type of numbers","ebuildids":[820277,885900],"firstseen":"2010-05-04T00:54:45.661860","maintainer":"toolchain@gentoo.org","maintainername":"Gentoo Toolchain Project","name":"gmp","packageid":55512}],"repos":[{"branch":"master","lastcommit":"f87ce2b74421571078063820dc1065e7089c9fa7","name":"gentoo","path":"\/usr\/portage","repoid":1,"upstream":"origin"}],"tracked":false,"urls":["https:\/\/people.inf.ethz.ch\/fukudak\/cdd_home\/index.html"],"uses":[{"description":"Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally","isdefault":false,"use":"doc"},{"description":"Install examples, usually source code","isdefault":false,"use":"examples"},{"description":"Build static versions of dynamic libraries as well","isdefault":false,"use":"static-libs"},{"description":"Add a few executables and tests for cddlib","isdefault":false,"packageid":56517,"use":"tools"}]}