makefile: always make automatic checkout of Chez Scheme

If `make cs` is run without specifying a SCHEME_SRC, then make sure
that `configure` and `make` are re-run in the Chez Scheme checkout,
in case it was updated.

Makefile

@@ -234,6 +234,7 @@ RACKET =
 # Chez Scheme from `CHEZ_SCHEME_REPO`
 SCHEME_SRC = 
 DEFAULT_SCHEME_SRC = racket/src/build/ChezScheme
+MAKE_BUILD_SCHEME = y
 
 CHEZ_SCHEME_REPO = https://github.com/mflatt/ChezScheme
 
@@ -289,14 +290,14 @@ ABS_SCHEME_SRC = "`$(RACKET) racket/src/cs/absify.rkt $(SCHEME_SRC)`"
 cs-after-racket-with-racket:
 	if [ "$(SCHEME_SRC)" = "" ] ; \
 	  then $(MAKE) cs-after-racket-with-racket-and-scheme-src RACKET="$(RACKET)" SCHEME_SRC="$(DEFAULT_SCHEME_SRC)" ; \
-	  else $(MAKE) cs-after-racket-with-racket-and-scheme-src RACKET="$(RACKET)" SCHEME_SRC="$(SCHEME_SRC)" ; fi
+	  else $(MAKE) cs-after-racket-with-racket-and-scheme-src RACKET="$(RACKET)" SCHEME_SRC="$(SCHEME_SRC)" MAKE_BUILD_SCHEME=n ; fi
 
 cs-after-racket-with-racket-and-scheme-src:
 	$(MAKE) cs-after-racket-with-abs-paths RACKET="$(ABS_RACKET)" SCHEME_SRC="$(ABS_SCHEME_SRC)" SELF_UP=../
 
 cs-after-racket-with-abs-paths:
 	$(MAKE) racket/src/build/cs/Makefile
-	cd racket/src/build/cs; $(MAKE) RACKET="$(RACKET)" SCHEME_SRC="$(SCHEME_SRC)"
+	cd racket/src/build/cs; $(MAKE) RACKET="$(RACKET)" SCHEME_SRC="$(SCHEME_SRC)" MAKE_BUILD_SCHEME="$(MAKE_BUILD_SCHEME)"
 	$(MAKE) base-config
 	cd racket/src/build/cs; $(MAKE) install RACKET="$(RACKET)" $(INSTALL_SETUP_ARGS)
 	$(MAKE) $(CS_SETUP_TARGET) PLAIN_RACKET=racket/bin/racketcs

racket/src/cs/c/Makefile.in

@@ -2,6 +2,7 @@ srcdir = @srcdir@
 builddir = @builddir@
 
 SCHEME_SRC = @SCHEME_SRC@
+MAKE_BUILD_SCHEME = @MAKE_BUILD_SCHEME@
 MACH = @MACH@
 SCHEME_BIN = $(SCHEME_SRC)/$(MACH)/bin/$(MACH)/scheme
 SCHEME_INC = $(SCHEME_SRC)/$(MACH)/boot/$(MACH)
@@ -104,9 +105,10 @@ known:
 	cd $(srcdir)/../../schemify && $(MAKE) known-src-generate RACKET="$(BOOTSTRAP_RACKET)" BUILDDIR="$(builddir)/"
 
 scheme:
-	$(MAKE) $(SCHEME_BIN)
+	if [ "$(MAKE_BUILD_SCHEME)" = "y" ] ; \
+         then $(MAKE) scheme-make ; fi
 
-$(SCHEME_BIN):
+scheme-make:
 	cd @SCHEME_SRC@ && ./configure @SCHEME_CONFIG_ARGS@
 	cd @SCHEME_SRC@ && make
 

racket/src/cs/c/configure

@@ -624,6 +624,7 @@ LIBOBJS
 FRAMEWORK_PREFIX
 FRAMEWORK_INSTALL_DIR
 SCHEME_CONFIG_ARGS
+MAKE_BUILD_SCHEME
 SCHEME_SRC
 COMPRESS_COMP
 CONFIGURE_RACKET_SO_COMPILE
@@ -3296,9 +3297,11 @@ case "$host_cpu" in
 esac
 
 SCHEME_SRC=../ChezScheme
+MAKE_BUILD_SCHEME=y
 
 if test "${enable_scheme}" != "" ; then
   SCHEME_SRC="${enable_scheme}"
+  MAKE_BUILD_SCHEME=n
 fi
 
 if test "${enable_racket}" != "" ; then
@@ -3932,6 +3935,7 @@ CPPFLAGS="$CPPFLAGS $PREFLAGS"
 
 
 
+
 
 
 makefiles="Makefile"

racket/src/cs/c/configure.ac

@@ -184,9 +184,11 @@ case "$host_cpu" in
 esac
 
 SCHEME_SRC=../ChezScheme
+MAKE_BUILD_SCHEME=y
 
 if test "${enable_scheme}" != "" ; then
   SCHEME_SRC="${enable_scheme}"
+  MAKE_BUILD_SCHEME=n
 fi
 
 if test "${enable_racket}" != "" ; then
@@ -357,6 +359,7 @@ AC_SUBST(NOT_OSX)
 AC_SUBST(CONFIGURE_RACKET_SO_COMPILE)
 AC_SUBST(COMPRESS_COMP)
 AC_SUBST(SCHEME_SRC)
+AC_SUBST(MAKE_BUILD_SCHEME)
 AC_SUBST(SCHEME_CONFIG_ARGS)
 AC_SUBST(FRAMEWORK_INSTALL_DIR)
 AC_SUBST(FRAMEWORK_PREFIX)