sys-apps/bpftune: simplify & fix dependencies

* Simplify ebuild with autotools eclass.
* Add pahole dependency.
* Add check for Kernel BTF feature.
* Move clang and bpftool to BDEPEND.

Signed-off-by: Justin Matthew Kidd <me@justinkidd.ca>

sys-apps/bpftune/bpftune-9999.ebuild

@@ -3,7 +3,7 @@
 
 EAPI=8
 
-inherit git-r3 systemd
+inherit git-r3 systemd linux-info autotools
 
 DESCRIPTION="bpftune uses BPF to auto-tune Linux systems"
 HOMEPAGE="https://github.com/oracle/bpftune"
@@ -11,35 +11,23 @@ EGIT_REPO_URI="https://github.com/oracle/bpftune.git"
 
 LICENSE="GPL-2"
 SLOT="0"
-
-RDEPEND="
+BDEPEND="
+	dev-util/bpftool
+	dev-util/pahole
+	llvm-core/clang
+"
+DEPEND="
 	dev-libs/libbpf
 	sys-libs/libcap
 	dev-libs/libnl
 "
-DEPEND="
-	${RDEPEND}
-	dev-util/bpftool
-	llvm-core/clang
-"
 
-src_compile() {
-	emake libdir="$(get_libdir)" srcdir
+pkg_setup() {
+	CONFIG_CHECK="DEBUG_INFO_BTF"
+	check_extra_config
 }
 
 src_install() {
-	dobin src/bpftune
-	dolib.so src/libbpftune.so*
-
-	exeinto "/usr/$(get_libdir)/bpftune"
-	doexe src/tcp_buffer_tuner.so
-	doexe src/route_table_tuner.so
-	doexe src/neigh_table_tuner.so
-	doexe src/sysctl_tuner.so
-	doexe src/tcp_conn_tuner.so
-	doexe src/netns_tuner.so
-	doexe src/net_buffer_tuner.so
-	doexe src/ip_frag_tuner.so
-
+	default
 	systemd_dounit src/bpftune.service
 }