http2d: add static build

Author: razvancrainea

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "modules/launch_darkly/lib/c-server-sdk"]
 	path = modules/launch_darkly/lib/c-server-sdk
 	url = https://github.com/launchdarkly/c-server-sdk.git
+[submodule "modules/http2d/lib/nghttp2"]
+	path = modules/http2d/lib/nghttp2
+	url = https://github.com/nghttp2/nghttp2

modules/http2d/.gitignore

@@ -0,0 +1,4 @@
+/lib/include
+/lib/lib
+/lib/build
+/lib/share

modules/http2d/Makefile

@@ -4,8 +4,56 @@ include ../../Makefile.defs
 auto_gen=
 NAME=http2d.so
 
-#DEFS +=-I$(LOCALBASE)/include
-LIBS +=-L$(LOCALBASE)/lib -lssl -lcrypto -levent -lnghttp2 -levent_openssl
+_makefile_path := $(lastword $(MAKEFILE_LIST))
+MOD_DIR ?= $(shell realpath `dirname $(_makefile_path)`)/modules/http2d
+
+ifneq ($(HTTP2D_USE_SYSTEM),yes)
+HTTP2D_LOCALBASE ?= ./lib
+ifeq ($(HTTP2D_USE_SHARED),yes)
+HTTP2D_LIB_NAME ?= libnghttp2.so
+else
+HTTP2D_USE_SHARED = no
+HTTP2D_LIB_NAME ?= libnghttp2.a
+endif
+DEPS += lib/lib/$(HTTP2D_LIB_NAME)
+else
+HTTP2D_LOCALBASE ?= $(LOCALBASE)
+endif
+
+DEFS+=-I$(HTTP2D_LOCALBASE)/include
+LIBS+=-L$(HTTP2D_LOCALBASE)/lib -lssl -lcrypto -levent -lnghttp2 -levent_openssl
 
 include ../../Makefile.modules
 
+ifneq ($(HTTP2D_USE_SYSTEM),yes)
+lib/nghttp2/configure:
+	$(Q)cd ./lib/nghttp2 && \
+		autoreconf -i && \
+		automake && \
+		autoconf
+
+lib/nghttp2/Makefile: lib/nghttp2/configure
+	$(Q)cd ./lib/nghttp2 && \
+		CFLAGS=-fPIC \
+		./configure \
+			--enable-lib-only \
+			--enable-shared=$(HTTP2D_USE_SHARED) \
+			--enable-silent-rules \
+			--disable-app \
+			--disable-failmalloc \
+			--prefix=$(MOD_DIR)/lib
+
+lib/lib/libnghttp2.a: lib/nghttp2/Makefile
+	$(Q)$(MAKE) -C ./lib/nghttp2 install
+
+clean:	http2d-wolfssl-lib
+
+.PHONY: http2d-wolfssl-lib
+http2d-wolfssl-lib:
+	-@if [ -f ./lib/nghttp2/Makefile ]; then \
+		$(MAKE) -C ./lib/nghttp2 clean; \
+	fi;
+	-@rm -rf ./lib/lib lib/share lib/include lib/bin \
+		./lib/nghttp2/autom4te.cache \
+		./lib/nghttp2/configure lib/nghttp2/Makefile
+endif