sci-electronics/yosys: inherit llvm-r2, remove tcl use flag

- inherit llvm-r2.eclass
- remove tcl use flag
- happy new year 2026

Signed-off-by: Huang Rui <vowstar@gmail.com>

sci-electronics/yosys/yosys-0.61-r1.ebuild

@@ -1,11 +1,12 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
 PYTHON_COMPAT=( python3_{11..14} )
+LLVM_COMPAT=( {18..21} )
 
-inherit python-any-r1
+inherit python-any-r1 llvm-r2
 
 DESCRIPTION="framework for Verilog RTL synthesis"
 HOMEPAGE="https://yosyshq.net/yosys/"
@@ -17,17 +18,17 @@ S="${WORKDIR}"
 LICENSE="ISC"
 SLOT="0"
 KEYWORDS="~amd64"
-IUSE="tcl"
-
 RDEPEND="
 	dev-libs/boost:=
 	dev-libs/libffi:=
-	llvm-core/clang:=
+	dev-lang/tcl:=
+	$(llvm_gen_dep '
+		llvm-core/clang:${LLVM_SLOT}=
+	')
 	media-gfx/xdot
 	sys-libs/ncurses:=
 	sys-libs/readline:=
 	virtual/zlib
-	tcl? ( dev-lang/tcl:= )
 "
 
 DEPEND="${RDEPEND}"
@@ -37,6 +38,21 @@ BDEPEND="
 	virtual/pkgconfig
 "
 
+src_prepare() {
+	default
+
+	# Fix execute permissions and add shebang for Python scripts
+	local script
+	while IFS= read -r -d '' script; do
+		chmod +x "${script}" || die
+		# Add shebang if missing
+		if ! head -n 1 "${script}" | grep -q '^#!'; then
+			sed -i '1i#!/usr/bin/env python3' "${script}" || die
+		fi
+	done < <(find . -name "*.py" -print0)
+
+}
+
 src_configure() {
 	cat <<-__EOF__ >> Makefile.conf || die
 		PREFIX := ${EPREFIX}/usr
@@ -46,9 +62,5 @@ src_configure() {
 		PYTHON_EXECUTABLE := ${PYTHON}
 	__EOF__
 
-	if ! use tcl; then
-		echo "ENABLE_TCL := 0" >> Makefile.conf || die
-	fi
-
 	default
 }