Make: refactor dynamic module builds.

Define all the shared module targets in the main Makefile and allow
build/*.mk files to add the correct dependencies.

Author: bavshin-f5

Makefile

@@ -1,5 +1,7 @@
 MODULE		= nginx_acme
-# build/build-%.mk: debug, debug-static, release, release-static, sanitize
+MODULE_NAME	= ngx_http_acme_module
+
+# build/build-%.mk: debug, debug-static, release, release-static, sanitize, ...
 BUILD		?= debug
 TESTS		?= t/
 NGX_CARGO	?= cargo
@@ -66,6 +68,7 @@ help:
 # Always rebuild targets managed by external build tool
 .PHONY: target/debug/lib$(MODULE)$(NGX_MODEXT) \
 	target/release/lib$(MODULE)$(NGX_MODEXT) \
+	$(NGINX_BUILD_DIR)/$(MODULE_NAME).so \
 	$(TEST_NGINX_BINARY)
 
 $(NGINX_BUILD_DIR)/Makefile: config config.make auto/rust
@@ -81,7 +84,11 @@ $(NGINX_BUILD_DIR)/Makefile: $(NGINX_SOURCE_DIR)/src/core/nginx.h
 
 $(TEST_NGINX_BINARY): $(NGINX_BUILD_DIR)/Makefile
 	cd $(NGINX_SOURCE_DIR) \
-		&& $(BUILD_ENV) $(MAKE) -f $(NGINX_BUILD_DIR)/Makefile
+		&& $(BUILD_ENV) $(MAKE) -f $(NGINX_BUILD_DIR)/Makefile binary
+
+$(NGINX_BUILD_DIR)/$(MODULE_NAME).so: $(NGINX_BUILD_DIR)/Makefile
+	cd $(NGINX_SOURCE_DIR) \
+		&& $(BUILD_ENV) $(MAKE) -f $(NGINX_BUILD_DIR)/Makefile modules
 
 target/debug/lib$(MODULE)$(NGX_MODEXT): $(NGINX_BUILD_DIR)/Makefile
 	$(BUILD_ENV) $(NGX_CARGO) build

build/build-aws-lc.mk

@@ -23,7 +23,10 @@ BUILD_ENV		+= OPENSSL_INCLUDE_DIR="$(LIBSSL_DESTDIR)/include"
 BUILD_ENV		+= OPENSSL_LIB_DIR="$(LIBSSL_DESTDIR)/lib"
 BUILD_ENV		+= OPENSSL_STATIC=0
 
+NGX_MODULE		= $(NGINX_BUILD_DIR)/$(MODULE_NAME).so
+
 TEST_ENV		+= LD_LIBRARY_PATH="$(LIBSSL_DESTDIR)/lib"
+TEST_NGINX_GLOBALS	+= load_module $(NGX_MODULE);
 
 NGINX_CONFIGURE		= \
 	$(NGINX_CONFIGURE_BASE) \
@@ -33,14 +36,8 @@ NGINX_CONFIGURE		= \
 		--add-dynamic-module="$(CURDIR)"
 
 
-NGX_MODULE		= $(NGINX_BUILD_DIR)/ngx_http_acme_module.so
-TEST_NGINX_GLOBALS	+= load_module $(NGX_MODULE);
-
-.PHONY: $(NGX_MODULE)
-
 build: $(NGX_MODULE)
 
-
 $(LIBSSL_BUILDDIR)/CMakeCache.txt: $(LIBSSL_SRCDIR)/CMakeLists.txt
 	cmake -S $(LIBSSL_SRCDIR) \
 		-B $(LIBSSL_BUILDDIR) \