net-p2p/p2pool: version bump and CFLAGS fixes

Signed-off-by: Adam Pimentel <adam.pimentel@protonmail.com>

net-p2p/p2pool/p2pool-4.0.ebuild

@@ -17,6 +17,7 @@ SRC_URI="
 LICENSE="BSD GPL-3+ ISC LGPL-3+ MIT"
 SLOT="0"
 KEYWORDS="~amd64 ~arm64 ~x86"
+#IUSE="grpc"
 
 DEPEND="
 	dev-libs/libsodium
@@ -44,12 +45,19 @@ src_unpack() {
 	mv -T "${WORKDIR}"/${PN} "${WORKDIR}"/${P} || die
 }
 
+src_prepare(){
+	rm "${S}/cmake/flags.cmake" || die
+	cp "${FILESDIR}/flags.cmake" "${S}/cmake/flags.cmake" || die
+	cmake_src_prepare
+	default_src_prepare
+}
+
 src_configure() {
 	local mycmakeargs=(
 		-DWITH_RANDOMX=OFF
 		-DWITH_GRPC=OFF
+		#-DWITH_GRPC=$(usex grpc)
 	)
-
 	cmake_src_configure
 }