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# Copyright 1999-2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
# ebuild generated by hackport 0.6.9999
#hackport: flags: +small_base
CABAL_FEATURES="test-suite"
inherit haskell-cabal autotools
DESCRIPTION="Happy is a parser generator for Haskell"
HOMEPAGE="https://www.haskell.org/happy/"
SRC_URI="https://hackage.haskell.org/package/${P}/${P}.tar.gz"
LICENSE="BSD-2"
SLOT="0"
KEYWORDS="amd64 ~arm64 ~ppc64 ~riscv ~x86"
IUSE="doc"
# Re: LLVM blocker - ghc-9.0.2 generates IR that crashes LLVM opt
# for two test cases. Unsure yet if this is a bug in the GHC LLVM
# backend or in LLVM itself. Tracked in
# https://github.com/llvm/llvm-project/issues/57393
#
# Must be in RDEPEND or pkgcheck complains about MisplaceWeakBlocker.
# Although in theory it's possible to enable USE=llvm on an arch with
# native codegen, there is no reason to do so, so in practice this should
# block USE=test exclusively on arches that support registerised GHC
# through the LLVM backend only.
RDEPEND=">=dev-haskell/mtl-2.2.1:=
>=dev-lang/ghc-7.4.1:=
test? ( !dev-lang/ghc[llvm(-)] )
"
DEPEND="${RDEPEND}
>=dev-haskell/cabal-1.8
doc? ( ~app-text/docbook-xml-dtd-4.2
app-text/docbook-xsl-stylesheets )
"
src_prepare() {
default
if use doc; then
cd doc || die
eautoconf
fi
}
src_configure() {
# '--with-happy=false' allows detecting circular
# depends even when 'happy' is installed in system
haskell-cabal_src_configure \
--with-happy=false\
--flag=small_base
if use doc; then
# does not like out-of-source builds
cd doc || die
econf
fi
}
src_compile() {
haskell-cabal_src_compile
if use doc; then
emake -C doc -j1
fi
}
src_install() {
haskell-cabal_src_install
if use doc; then
docinto html
dodoc -r doc/happy/.
doman doc/happy.1
fi
}
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