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# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit toolchain-funcs
MV=$(ver_cut 1)$(ver_cut 2)
MY_P="${PN}${PV//./}"
LHA_VER="6.1"
DESCRIPTION="Lund Monte Carlo high-energy physics event generator"
HOMEPAGE="https://pythia.org/"
SRC_URI="https://pythia.org/download/${PN}${MV}/${MY_P}.tgz
test? ( lhapdf? (
https://www.hepforge.org/archive/lhapdf/pdfsets/${LHA_VER}/CT10.tar.gz
https://www.hepforge.org/archive/lhapdf/pdfsets/${LHA_VER}/MRST2007lomod.tar.gz
https://www.hepforge.org/archive/lhapdf/pdfsets/${LHA_VER}/NNPDF23_nlo_as_0119_qed_mc.tar.gz
https://www.hepforge.org/archive/lhapdf/pdfsets/${LHA_VER}/NNPDF23_nnlo_as_0119_qed_mc.tar.gz
https://www.hepforge.org/archive/lhapdf/pdfsets/${LHA_VER}/cteq66.tar.gz
https://www.hepforge.org/archive/lhapdf/pdfsets/${LHA_VER}/cteq6l1.tar.gz
https://www.hepforge.org/archive/lhapdf/pdfsets/${LHA_VER}/unvalidated/MRST2004qed.tar.gz
) )"
SLOT="8"
LICENSE="GPL-2"
KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
IUSE="doc examples fastjet +hepmc lhapdf root test zlib"
RESTRICT="!test? ( test )"
RDEPEND="
fastjet? ( sci-physics/fastjet )
hepmc? ( sci-physics/hepmc:2= )
lhapdf? ( sci-physics/lhapdf:= )
zlib? ( sys-libs/zlib )"
# ROOT is used only when building related tests
DEPEND="${RDEPEND}
test? (
root? ( sci-physics/root:= )
)"
PATCHES=(
"${FILESDIR}"/${PN}8209-root-noninteractive.patch
)
S="${WORKDIR}/${MY_P}"
pkg_pretend() {
if use root && ! use test; then
ewarn "ROOT support will only affect examples code build during test stage."
ewarn "Since you have tests disabled, this is a no-op."
fi
}
src_prepare() {
PYTHIADIR="/usr/share/pythia8"
EPYTHIADIR="${EPREFIX}${PYTHIADIR}"
default
# set datadir for xmldor in include file
sed -i \
-e "s|../share/Pythia8/xmldoc|${EPYTHIADIR}/xmldoc|" \
include/Pythia8/Pythia.h || die
# respect libdir, prefix, flags
sed -i \
-e "s|/lib|/$(get_libdir)|g" \
-e "s|/usr|${EPREFIX}/usr|g" \
-e "s|-O2|${CXXFLAGS}|g" \
-e "s|Cint|Core|g" \
configure || die
sed -i 's|$(CXX) $^ -o $@ $(CXX_COMMON) $(CXX_SHARED)|$(CXX) $(LDFLAGS) $^ -o $@ $(CXX_COMMON) $(CXX_SHARED)|g' \
Makefile || die
sed -i 's|$(CXX)|$(CXX) $(LDFLAGS)|' examples/Makefile || die
# we use lhapdf6 instead of lhapdf5
# some PDFs changed, use something similar
sed -i \
-e "s|LHAPDF5|LHAPDF6|g" \
-e "s|\.LHgrid||g" \
-e "s|\.LHpdf||g" \
-e "s|MRST2001lo|MRST2007lomod|g" \
-e "s|cteq6ll|cteq6l1|g" \
-e "s|cteq6m|cteq66|g" \
examples/*.{cc,cmnd} || die
# After lhapdf5->6 migration PDFs are identical within ~1/1000
# https|//www.hepforge.org/archive/lhapdf/pdfsets/6.1/README
sed -i \
-e "s|1e-8|3e-1|g" \
-e "s|nlo_as_0119_qed|nlo_as_0119_qed_mc|g" \
-e "s|xmldoc|share/Pythia8/xmldoc|g" \
examples/main54.cc || die
# ask cflags from root
sed -i "s|root-config|root-config --cflags|g" examples/Makefile || die
sed -i \
-e '/TARGETS=$(LOCAL_LIB)\/libpythia8\.a/d' \
-e 's|libpythia8\.a$|libpythia8$(LIB_SUFFIX)|g' \
Makefile || die
sed -i 's|libpythia8\.a|libpythia8$(LIB_SUFFIX)|g' \
examples/Makefile || die
}
# TODO: the following optional packages are out of Gentoo tree:
# - EvtGen http://atlas-computing.web.cern.ch/atlas-computing/links/externalDirectory/EvtGen/
# - PowHEG http://powhegbox.mib.infn.it/
# - ProMC https://github.com/Argonne-National-Laboratory/ProMC/
src_configure() {
# homemade configure script
./configure \
--arch=Linux \
--cxx="$(tc-getCXX)" \
--enable-shared \
--prefix="${EPREFIX}/usr" \
--prefix-lib="$(get_libdir)" \
--prefix-share="${EPYTHIADIR}" \
$(usex fastjet "--with-fastjet3" "") \
$(usex zlib "--with-gzip" "") \
$(usex hepmc "--with-hepmc2" "") \
$(usex lhapdf "--with-lhapdf6
--with-lhapdf6-plugin=LHAPDF6.h
--with-lhapdf6-lib=${EPREFIX}/usr/$(get_libdir)" "") \
$(usex root "--with-root
--with-root-include=${EPREFIX}/usr/include/root
--with-root-lib=${EPREFIX}/usr/$(get_libdir)/root" "") \
|| die
# fix pythia config script
sed -i \
-e 's|pythia8/examples/Makefile.inc|pythia8/Makefile.inc|' \
-e 's|LINE%=|LINE%%=|' \
bin/pythia8-config || die
}
src_test() {
cd examples || die
local tests="$(echo main{{01..32},37,38,61,62,73,80}.out)"
use hepmc && tests+=" $(echo main{41,42,85,86}.out)"
use hepmc && use lhapdf && tests+=" $(echo main{43,{87..89}}.out)"
use lhapdf && tests+=" $(echo main{51..54}.out)"
use fastjet && tests+=" $(echo main{71,72}.out)"
use fastjet && use hepmc && use lhapdf && tests+=" $(echo main{81..84}).out"
use root && tests+=" main91.out"
# Disabled tests:
# 33 needs PowHEG
# 46 needs ProMC
# 48 needs EvtGen
# 92 generated ROOT dictionary is badly broken
# use emake for parallel instead of long runmains
LD_LIBRARY_PATH="${S}/$(get_libdir):${LD_LIBRARY_PATH}" \
PYTHIA8DATA="../share/Pythia8/xmldoc/" \
LHAPDF_DATA_PATH="${WORKDIR}" \
emake ${tests}
emake clean
}
src_install() {
# make install is too broken, much easier to install manually
dobin bin/pythia8-config
doheader -r include/*
dolib.so lib/libpythia8.so
use lhapdf && dolib.so lib/libpythia8lhapdf6.so
insinto "${PYTHIADIR}"
doins -r share/Pythia8/xmldoc examples/Makefile.inc
newenvd - 99pythia8 <<- _EOF_
PYTHIA8DATA=${EPYTHIADIR}/xmldoc
_EOF_
dodoc AUTHORS GUIDELINES README
if use doc; then
dodoc -r share/Pythia8/pdfdoc/.
dodoc -r share/Pythia8/htmldoc/.
fi
if use examples; then
# reuse system Makefile.inc
rm examples/Makefile.inc || die
sed -i "s|include Makefile.inc|include ${EPYTHIADIR}|" \
examples/Makefile || die
insinto /usr/share/${PN}
doins -r examples
docompress -x /usr/share/doc/${PF}/examples
fi
# cleanup
unset PYTHIADIR EPYTHIADIR
}
|
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