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

common/build_style/gnu-configure.sh

@@ -0,0 +1,33 @@
+#
+# This helper is for templates using GNU configure scripts.
+#
+do_configure() {
+	: ${configure_script:=./configure}
+
+	# Make sure that shared libraries are built with --as-needed.
+	#
+	# http://lists.gnu.org/archive/html/libtool-patches/2004-06/msg00002.html
+	if [ -z "$broken_as_needed" ]; then
+		sed -i "s/^\([ \t]*tmp_sharedflag\)='-shared'/\1='-shared -Wl,--as-needed'/" ${configure_script}
+	fi
+	# Automatically detect musl toolchains.
+	for f in $(find ${wrksrc} -type f -name *config*.sub); do
+		cp -f ${XBPS_CROSSPFDIR}/config.sub ${f}
+	done
+	${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}
+}