[PATCH gwproxy v13 8/8] Makefile: Introduce --use-new-dns-resolver configure option

[Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>]

Add a configure option to enable the new DNS resolver feature.
By default it is disabled as it's still experimental.

Signed-off-by: Alviro Iskandar Setiawan <alviro.iskandar@gnuweeb.org>
---
 Makefile  | 6 ++++++
 configure | 8 ++++++++
 2 files changed, 14 insertions(+)

diff --git a/Makefile b/Makefile
index 3ac35f0..a2d1e71 100644
--- a/Makefile
+++ b/Makefile
@@ -83,6 +83,12 @@ endif
 -include config.make
 LIBS=$(LIB_LDFLAGS)
 
+ifeq ($(CONFIG_NEW_DNS_RESOLVER),y)
+GWPROXY_CC_SOURCES += \
+	$(GWPROXY_DIR)/dns_parser.c \
+	$(GWPROXY_DIR)/dns_resolver.c
+endif
+
 ifeq ($(CONFIG_IO_URING),y)
 	GWPROXY_CC_SOURCES += $(GWPROXY_DIR)/ev/io_uring.c
 	ALL_GWPROXY_OBJECTS += $(LIBURING_TARGET)
diff --git a/configure b/configure
index 44c49da..6daaeb6 100755
--- a/configure
+++ b/configure
@@ -37,6 +37,9 @@ for opt do
 	--use-io-uring)
 		use_io_uring="yes";
 	;;
+	--use-new-dns-resolver)
+		use_new_dns_resolver="yes";
+	;;
 	--sanitize)
 		use_sanitize="yes";
 	;;
@@ -88,6 +91,7 @@ Options: [defaults in brackets after descriptions]
   --debug                  Build with debug enabled
   --use-io-uring           Enable io_uring support (default: no)
   --sanitize               Enable sanitizers (default: no)
+  --use-new-dns-resolver   Use the new DNS resolver feature (default: no)
 EOF
 exit 0;
 fi
@@ -346,6 +350,10 @@ if test "${use_sanitize}" = "yes"; then
 	CXXFLAGS="${CXXFLAGS} -fsanitize=address -fsanitize=undefined";
 fi;
 
+if test "${use_new_dns_resolver}" = "yes"; then
+	add_config "CONFIG_NEW_DNS_RESOLVER";
+fi;
+
 add_config "CONFIG_LINUX";
 
 if test "${use_debug}" = "yes"; then
-- 
Alviro Iskandar Setiawan