app-metrics/node_exporter: workaround bug #917577 for x86 builds

Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
Bug: https://bugs.gentoo.org/917577

app-metrics/node_exporter/node_exporter-1.7.0.ebuild

@@ -51,6 +51,10 @@ src_unpack() {
 }
 
 src_compile() {
+	if use x86; then
+		#917577 pie breaks build on x86
+		GOFLAGS=${GOFLAGS//-buildmode=pie}
+	fi
 	promu build -v || die
 	./"${PN}" --help-man > "${PN}".1 || die
 }