commit: d136d0941d9332e436fa6d59476a7f1eb135dd01 Author: Michael Orlitzky <mjo <AT> gentoo <DOT> org> AuthorDate: Sat Jan 17 16:29:34 2026 +0000 Commit: Michael Orlitzky <mjo <AT> gentoo <DOT> org> CommitDate: Sat Jan 17 16:55:44 2026 +0000 URL: https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=d136d094
sci-mathematics/gfan: fix build against libcxx Yet another patch against 0.6.x. I did try to package gfan-0.7 again first, this time with the Debian patches for the int128 types, but the build still failed miserably. Closes: https://bugs.gentoo.org/928999 Signed-off-by: Michael Orlitzky <mjo <AT> gentoo.org> sci-mathematics/gfan/Manifest | 1 + sci-mathematics/gfan/gfan-0.6.2-r8.ebuild | 88 +++++++++++++++++++++++++++++++ 2 files changed, 89 insertions(+) diff --git a/sci-mathematics/gfan/Manifest b/sci-mathematics/gfan/Manifest index 23cbc2f60273..9f04d1f8dff3 100644 --- a/sci-mathematics/gfan/Manifest +++ b/sci-mathematics/gfan/Manifest @@ -1 +1,2 @@ +DIST gfan-0.6.2-libcxx.patch.xz 13704 BLAKE2B 0611206260a2ba5690a7821c38dd96de10e05a8c7afb68af3000b1bddbe175bfee74a520ec62e309a25525f25dbcb9647ba0a0e1297ceb199968c5ff76d87b09 SHA512 caeef81bd8bec8da7fb7a57629ec53d55d60d2e881faa842a194bf0e5904ffd9048fe287c480b571394059ea087e33617bfae3602dae8089bcaa6047a3f78719 DIST gfan0.6.2.tar.gz 1321059 BLAKE2B 1ed61e1e084a1ceb65dd21848440bc3a90486c0ce4012b3b64c8029e89636696d2b0e5446ea156d2cf050b5db179c7c2f25c97e683cecf6e9616e8553d8513bf SHA512 5961820750af2522fdc1a86c0254742c3b003607a8707df5d6cd5f0bc6461e4d3db3b1d3cb537979d57eb9dff387974a58aeb91d0b5246d7c701cadc5a2cf4cf diff --git a/sci-mathematics/gfan/gfan-0.6.2-r8.ebuild b/sci-mathematics/gfan/gfan-0.6.2-r8.ebuild new file mode 100644 index 000000000000..174d43cc6707 --- /dev/null +++ b/sci-mathematics/gfan/gfan-0.6.2-r8.ebuild @@ -0,0 +1,88 @@ +# Copyright 1999-2026 Gentoo Authors +# Distributed under the terms of the GNU General Public License v2 + +EAPI=8 + +inherit flag-o-matic toolchain-funcs + +DESCRIPTION="Compute Groebner fans and tropical varieties" +HOMEPAGE="https://users-math.au.dk/~jensen/software/gfan/gfan.html"; +SRC_URI="https://users-math.au.dk/~jensen/software/${PN}/${PN}${PV}.tar.gz + https://dev.gentoo.org/~mjo/distfiles/${P}-libcxx.patch.xz"; + +S="${WORKDIR}/${PN}${PV}" + +LICENSE="GPL-2+" +SLOT="0" +KEYWORDS="~amd64 ~arm ~riscv ~x86" +IUSE="doc" + +# texlive-plaingeneric is needed for \usepackage{ulem} in +# the manual. ghostscript-gpl provides the "dvipdf" command. +BDEPEND="doc? ( + app-text/ghostscript-gpl + dev-texlive/texlive-plaingeneric + virtual/latex-base +)" +DEPEND="dev-libs/gmp:0=[cxx(+)] + sci-libs/cddlib:0=" +RDEPEND="${DEPEND}" + +PATCHES=( + "${FILESDIR}/${PN}-0.6.2-testsuite.patch" + "${FILESDIR}/${PN}-0.6.2-Makefile.patch" + "${FILESDIR}/${PN}-0.6.2-fix-0602ResultantFanProjection.patch" + "${FILESDIR}/${PN}-0.6.2-fix-spelling-errors.patch" + "${FILESDIR}/${PN}-0.6.2-find-name.patch" + "${FILESDIR}/${PN}-0.6.2-glibcxx-assertions.patch" + "${FILESDIR}/${PN}-0.6.2-gcc15.patch" + "${WORKDIR}/${PN}-0.6.2-libcxx.patch" +) + +pkg_setup() { + tc-export CC CXX + + # This should really go in cppflags, but that doesn't work with + # gfan's hand-written Makefile. + append-cxxflags -DNOCDDPREFIX -I"${EPREFIX}"/usr/include/cddlib +} + +src_prepare() { + default + + # And this one fails (harmlessly) on x86, bug 818397. + rm -r testsuite/0009RenderStairCase || \ + die "unable to disable test 0009RenderStairCase" +} + +src_configure() { + # -Werror=odr + # https://bugs.gentoo.org/863044 + # Only contact method is email. I have sent one detailing the issue. + filter-lto + + # The upstream Makefile says that GCC produces bad code with -O3. + replace-flags "-O3" "-O2" + default +} + +src_compile() { + default + if use doc; then + pushd doc > /dev/null || die + # The LaTeX build commands need to be repeated until the + # document "stops changing," which is not as easy as it + # sounds to detect. Running it twice seems to work here. + for iteration in 1 2; do + latex manual.tex && \ + bibtex manual && \ + dvipdf manual.dvi manual.pdf || die + done + popd > /dev/null || die + fi +} + +src_install() { + emake PREFIX="${ED}/usr" install + use doc && dodoc doc/manual.pdf +}
