Added build_style and cross-profiles dirs from xbps-src.

common/build_style/configure.sh

@@ -0,0 +1,24 @@
+#
+# This helper is for templates using configure scripts (not generated
+# by the GNU autotools).
+#
+do_configure() {
+	: ${configure_script:=./configure}
+
+	${configure_script} ${configure_args}
+}
+
+do_build() {
+	: ${make_cmd:=make}
+
+	${make_cmd} ${makejobs} ${make_build_args} ${make_build_target}
+}
+
+do_install() {
+	: ${make_cmd:=make}
+	: ${make_install_target:=install}
+
+	make_install_args+=" DESTDIR=${DESTDIR}"
+
+	${make_cmd} ${make_install_args} ${make_install_target}
+}