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45 lines
1.2 KiB
45 lines
1.2 KiB
# Copyright 2022-2023 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=8
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ALTERNATIVES=(
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"bison:>=sys-devel/bison-3.8.2-r1"
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byacc:dev-util/byacc
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"reference:>=dev-util/yacc-1.9.1-r7"
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)
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inherit app-alternatives
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DESCRIPTION="yacc symlinks"
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KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris"
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RDEPEND="
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!<dev-util/yacc-1.9.1-r7
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!<sys-devel/bison-3.8.2-r1
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"
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src_install() {
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local alt=$(get_alternative)
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case ${alt} in
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# bison installs its own small wrapper script 'yacc-bison'
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# around bison(1).
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bison) alt=yacc.bison;;
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reference) alt=yacc-reference;;
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esac
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dosym "${alt}" /usr/bin/yacc
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newman - yacc.1 <<<".so ${alt}.1"
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# Leaving this for now to be safe, as it's closer to pre-alternatives
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# status quo to leave it unset and let autoconf probe for Bison by itself
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# as it prefers it anyway, and might be a CPP-like situation wrt
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# calling bison or bison -y if YACC is set.
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if [[ ${alt} != yacc.bison ]]; then
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newenvd - 90yacc <<-EOF
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YACC=${alt}
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EOF
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fi
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}
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