Use $EMACS_COMMAND rather than just $EMACS (see #1855)

Makefile

@@ -4,7 +4,7 @@ RCPDIR  := ./recipes
 HTMLDIR := ./html
 WORKDIR := ./working
 WEBROOT := $$HOME/www
-EMACS   ?= emacs
+EMACS_COMMAND   ?= emacs
 SLEEP   ?= 0
 SANDBOX := ./sandbox
 ifdef STABLE
@@ -12,15 +12,15 @@ PKGDIR := ./packages-stable
 endif
 STABLE ?= nil
 
-EVAL := $(EMACS)
+EVAL := $(EMACS_COMMAND)
 
 ## Check for needing to initialize CL-LIB from ELPA
-NEED_CL-LIB := $(shell $(EMACS) --no-site-file --batch --eval '(prin1 (version< emacs-version "24.3"))')
+NEED_CL-LIB := $(shell $(EMACS_COMMAND) --no-site-file --batch --eval '(prin1 (version< emacs-version "24.3"))')
 ifeq ($(NEED_CL-LIB), t)
-	EMACS := $(EMACS) --eval "(package-initialize)"
+	EMACS_COMMAND := $(EMACS_COMMAND) --eval "(package-initialize)"
 endif
 
-EVAL := $(EMACS) --no-site-file --batch -l package-build.el --eval
+EVAL := $(EMACS_COMMAND) --no-site-file --batch -l package-build.el --eval
 
 TIMEOUT := $(shell which timeout && echo "-k 60 600")
 
@@ -102,7 +102,7 @@ $(RCPDIR)/%: .FORCE
 sandbox: packages/archive-contents
 	@echo " • Building sandbox ..."
 	mkdir -p $(SANDBOX)
-	$(EMACS) -Q \
+	$(EMACS_COMMAND) -Q \
 		--eval '(setq user-emacs-directory "$(SANDBOX)")' \
 		-l package \
 		--eval "(add-to-list 'package-archives '(\"gnu\" . \"http://elpa.gnu.org/packages/\") t)" \

README.md

@@ -135,7 +135,7 @@ through this process.
         make recipes/<NAME>
 
   (Be sure that the `emacs` on your path is at least version 23, or
-  set `$EMACS` to the location of a suitable binary.)
+  set `$EMACS_COMMAND` to the location of a suitable binary.)
 
   Alternatively, open the recipe in Emacs and press `C-c C-c` in the
   recipe buffer: this will also prompt you to install the