app-benchmarks/bootchart2: fix python_setup

* Call python-single-r1_pkg_setup (i.e. python_setup) conditionally
  based on USE=cairo to match the other Python conditionals
* Fix style (conditional last, not first in *DEPEND; whitespace; variable
  order)

Closes: https://bugs.gentoo.org/950448
Signed-off-by: Sam James <sam@gentoo.org>

app-benchmarks/bootchart2/bootchart2-0.14.9-r1.ebuild

@@ -1,15 +1,16 @@
-# Copyright 1999-2023 Gentoo Authors
+# Copyright 1999-2025 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-PYTHON_COMPAT=( python3_{9..11} pypy3 )
+PYTHON_COMPAT=( python3_{10..11} pypy3 )
 
 inherit linux-info python-single-r1 systemd toolchain-funcs
 
 DESCRIPTION="Performance analysis and visualization of the system boot process"
 HOMEPAGE="https://github.com/xrmx/bootchart"
 SRC_URI="https://github.com/xrmx/bootchart/archive/${PV}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}"/${PN%2}-${PV}
 
 LICENSE="GPL-2"
 SLOT="0"
@@ -20,13 +21,14 @@ REQUIRED_USE="cairo? ( ${PYTHON_REQUIRED_USE} )"
 RESTRICT="!cairo? ( test )"
 
 RDEPEND="
-	cairo? ( ${PYTHON_DEPS} $(python_gen_cond_dep 'dev-python/pycairo[${PYTHON_USEDEP}]') )
 	sys-apps/lsb-release
+	cairo? (
+		${PYTHON_DEPS}
+		$(python_gen_cond_dep 'dev-python/pycairo[${PYTHON_USEDEP}]')
+	)
 "
 BDEPEND="cairo? ( ${PYTHON_DEPS} )"
 
-S="${WORKDIR}"/${PN%2}-${PV}
-
 CONFIG_CHECK="~PROC_EVENTS ~TASKSTATS ~TASK_DELAY_ACCT ~TMPFS"
 
 PATCHES=(
@@ -34,9 +36,13 @@ PATCHES=(
 	"${FILESDIR}"/${P}-glibc-2.36.patch
 )
 
+pkg_setup() {
+	use cairo && python-single_r1_pkg_setup
+}
+
 src_prepare() {
 	default
-	python_setup
+
 	tc-export CC
 
 	# Redirects systemd unit directory,