fix release doc build with ENABLE_RELEASE=1

- set ENABLE_RELEASE=1 in release target and rerun makefile
- use same ENABLE_RELEASE variable as dmd and create_dmd_release
- Need both a target and a variable to be set for the build to work
  with dlang.org's current makefile architecture (deps in variables).
  The workaround is messy and separate targets should be used instead
  of variables that affect file lists.

Author: MartinNowak

.circleci/config.yml

@@ -18,4 +18,4 @@ jobs:
           name: Clone DMD + DRuntime + Phobos
       - run:
           command: ./.circleci/run.sh run-make
-          name: Run the Makefile in RELEASE=1 mode
+          name: Make the release target

.circleci/run.sh

@@ -109,7 +109,7 @@ run_make()
     make -v
 
     # -j1 is used for a better error log
-    make -f posix.mak -j1 RELEASE=1 DIFFABLE=1 release
+    make -f posix.mak -j1 DIFFABLE=1 release
 }
 
 case $1 in

posix.mak

@@ -24,7 +24,7 @@
 #
 #  To build `release` docs:
 #
-#      make -f posix.mak RELEASE=1 release
+#      make -f posix.mak release
 #
 #  Individual documentation targets
 #  --------------------------------
@@ -73,7 +73,6 @@
 #  Commonly used options include:
 #
 #       DIFFABLE=1          Removes inclusion of all dynamic content and timestamps
-#       RELEASE=1           Release build (needs to be set for the `release` target)
 #       CSS_MINIFY=1        Minify the CSS via an online service
 #       DOC_OUTPUT_DIR      Folder to build the documentation (default: `web`)
 #
@@ -320,7 +319,7 @@ SPEC_ROOT=$(addprefix spec/, \
 SPEC_DD=$(addsuffix .dd,$(SPEC_ROOT))
 
 CHANGELOG_FILES:=$(basename $(subst _pre.dd,.dd,$(wildcard changelog/*.dd))) changelog/release-schedule
-ifneq (1,$(RELEASE))
+ifneq (1,$(ENABLE_RELEASE))
  CHANGELOG_FILES+=changelog/pending
 endif
 
@@ -347,7 +346,7 @@ PAGES_ROOT=$(SPEC_ROOT) 404 acknowledgements areas-of-d-usage $(ARTICLE_FILES) \
 
 # The contributors listing is dynamically generated
 ifneq (1,$(DIFFABLE))
-ifneq (1,$(RELEASE))
+ifneq (1,$(ENABLE_RELEASE))
  PAGES_ROOT+=foundation/contributors
 endif
 endif
@@ -365,7 +364,10 @@ ALL_FILES = $(ALL_FILES_BUT_SITEMAP) $W/sitemap.html
 
 all : docs html
 
-ifeq (1,$(RELEASE))
+ifneq (1,$(ENABLE_RELEASE))
+release :
+	$(MAKE) -f $(MAKEFILE) ENABLE_RELEASE=1 release
+else
 release : html dmd-release druntime-release phobos-release d-release.tag
 endif