Added HTTP/2 to win32 builds.

misc/GNUmakefile

diff --git a/misc/GNUmakefile b/misc/GNUmakefile
index 9cdf418..bef4f0e 100644
--- a/misc/GNUmakefile
+++ b/misc/GNUmakefile
@@ -66,6 +66,7 @@
 		--with-pcre=$(OBJS)/lib/$(PCRE)				\
 		--with-zlib=$(OBJS)/lib/$(ZLIB)				\
 		--with-select_module					\
+		--with-http_v2_module					\
 		--with-http_realip_module				\
 		--with-http_addition_module				\
 		--with-http_sub_module					\