overlay

commit: 37c526c1133f5c1115eee0f6a937373715379459
parent e5241bc5794ef7c524cfe4b117f9fc4e95feb6bc
Author: Haelwenn (lanodan) Monnier <contact@hacktivis.me>
Date:   Fri, 26 Jul 2024 05:22:48 +0200

app-alternatives/yacc: new package, add 2

Diffstat:
A
app-alternatives/yacc/yacc-2.ebuild
45
+++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 45 insertions(+), 0 deletions(-)
diff --git a/app-alternatives/yacc/yacc-2.ebuild b/app-alternatives/yacc/yacc-2.ebuild
@@ -0,0 +1,45 @@
+# Copyright 2022-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+ALTERNATIVES=(
+	"bison:>=sys-devel/bison-3.8.2-r1"
+	byacc:dev-util/byacc
+	oyacc:dev-util/oyacc
+	"reference:>=dev-util/yacc-1.9.1-r7"
+)
+
+inherit app-alternatives
+
+DESCRIPTION="yacc symlinks"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+
+RDEPEND="
+	!<dev-util/yacc-1.9.1-r7
+	!<sys-devel/bison-3.8.2-r1
+"
+
+src_install() {
+	local alt=$(get_alternative)
+
+	case ${alt} in
+		# bison installs its own small wrapper script 'yacc-bison'
+		# around bison(1).
+		bison) alt=yacc.bison;;
+		reference) alt=yacc-reference;;
+	esac
+
+	dosym "${alt}" /usr/bin/yacc
+	newman - yacc.1 <<<".so ${alt}.1"
+
+	# Leaving this for now to be safe, as it's closer to pre-alternatives
+	# status quo to leave it unset and let autoconf probe for Bison by itself
+	# as it prefers it anyway, and might be a CPP-like situation wrt
+	# calling bison or bison -y if YACC is set.
+	if [[ ${alt} != yacc.bison ]]; then
+		newenvd - 90yacc <<-EOF
+			YACC=${alt}
+		EOF
+	fi
+}