makefile: speed up make in "cs" build directory

Take advantage of ".d" files that are already generated to speed up a
`make` in the "cs" build dierctory when nothing needs to be done.

racket/src/cs/c/Makefile.in

@@ -78,12 +78,12 @@ CS_PROGS = RACKET="$(RACKET)" SCHEME="$(SCHEME)" CONVERT_RACKET="$(CONVERT_RACKE
 CS_OPTS = COMPRESS_COMP=@COMPRESS_COMP@
 
 build-racket-so:
-	$(MAKE) expander
-	$(MAKE) thread
-	$(MAKE) io
-	$(MAKE) regexp
-	$(MAKE) schemify
-	$(MAKE) known
+	$(MAKE) @RKTL_PRE@expander@RKTL_POST@
+	$(MAKE) @RKTL_PRE@thread@RKTL_POST@
+	$(MAKE) @RKTL_PRE@io@RKTL_POST@
+	$(MAKE) @RKTL_PRE@regexp@RKTL_POST@
+	$(MAKE) @RKTL_PRE@schemify@RKTL_POST@
+	$(MAKE) @RKTL_PRE@known@RKTL_POST@
 	cd $(srcdir)/.. && $(RACKET_SO_ENV) $(MAKE) "$(builddir)/racket.so" $(CS_PROGS) $(CS_OPTS) BUILDDIR="$(builddir)/"
 
 bounce:
@@ -99,22 +99,22 @@ bounce:
 # place of `raco make` (to avoid a dependency on a package for `raco
 # make`).
 
-expander:
+@RKTL_PRE@expander@RKTL_POST@:
 	cd $(srcdir)/../../expander && $(MAKE) expander-src-generate RACKET="$(BOOTSTRAP_RACKET)" BUILDDIR="$(builddir)/"
 
-thread:
+@RKTL_PRE@thread@RKTL_POST@:
 	cd $(srcdir)/../../thread && $(MAKE) thread-src-generate RACKET="$(BOOTSTRAP_RACKET)" BUILDDIR="$(builddir)/"
 
-io:
+@RKTL_PRE@io@RKTL_POST@:
 	cd $(srcdir)/../../io && $(MAKE) io-src-generate RACKET="$(BOOTSTRAP_RACKET)" BUILDDIR="$(builddir)/"
 
-regexp:
+@RKTL_PRE@regexp@RKTL_POST@:
 	cd $(srcdir)/../../regexp && $(MAKE) regexp-src-generate RACKET="$(BOOTSTRAP_RACKET)" BUILDDIR="$(builddir)/"
 
-schemify:
+@RKTL_PRE@schemify@RKTL_POST@:
 	cd $(srcdir)/../../schemify && $(MAKE) schemify-src-generate RACKET="$(BOOTSTRAP_RACKET)" BUILDDIR="$(builddir)/"
 
-known:
+@RKTL_PRE@known@RKTL_POST@:
 	cd $(srcdir)/../../schemify && $(MAKE) known-src-generate RACKET="$(BOOTSTRAP_RACKET)" BUILDDIR="$(builddir)/"
 
 scheme:
@@ -128,6 +128,13 @@ scheme-make:
 racket.boot: racket.so
 	$(SCHEME) --script $(srcdir)/convert-to-boot.ss @COMPRESS_COMP@ racket.so racket.boot
 
+@INCLUDEDEP@ compiled/expander.d
+@INCLUDEDEP@ compiled/thread.d
+@INCLUDEDEP@ compiled/io.d
+@INCLUDEDEP@ compiled/regexp.d
+@INCLUDEDEP@ compiled/schemify.d
+@INCLUDEDEP@ compiled/known.d
+
 # ----------------------------------------
 # Unix
 

racket/src/cs/c/configure

@@ -638,6 +638,8 @@ OSX
 MACH
 SCHEME_DIR
 RACKET
+RKTL_POST
+RKTL_PRE
 INCLUDEDEP
 RKTLINKER
 STRIP_LIB_DEBUG
@@ -4026,6 +4028,20 @@ $as_echo "$set_strip_lib" >&6; }
 fi
 
 
+############## Makefile includes ################
+
+if test "$INCLUDEDEP" = "#" ; then
+  is_gmake=`make -v no-such-target-we-hope 2>&1 | grep "GNU Make"`
+  if test "$is_gmake" = "" ; then
+     INCLUDEDEP="-include"
+  fi
+fi
+
+if test "$INCLUDEDEP" != "#" ; then
+  RKTL_PRE="compiled/"
+  RKTL_POST=".rktl"
+fi
+
 ############## C flags ################
 
 ac_ext=c
@@ -4649,6 +4665,8 @@ CPPFLAGS="$CPPFLAGS $PREFLAGS"
 
 
 
+
+
 
 
 

racket/src/cs/c/configure.ac

@@ -289,6 +289,20 @@ fi
 
 m4_include(../ac/strip.m4)
 
+############## Makefile includes ################
+
+if test "$INCLUDEDEP" = "#" ; then
+  is_gmake=`make -v no-such-target-we-hope 2>&1 | grep "GNU Make"`
+  if test "$is_gmake" = "" ; then
+     INCLUDEDEP="-include"
+  fi
+fi
+
+if test "$INCLUDEDEP" != "#" ; then
+  RKTL_PRE="compiled/"
+  RKTL_POST=".rktl"
+fi
+
 ############## C flags ################
 
 AC_LANG_C
@@ -437,6 +451,8 @@ AC_SUBST(STRIP_DEBUG)
 AC_SUBST(STRIP_LIB_DEBUG)
 AC_SUBST(RKTLINKER)
 AC_SUBST(INCLUDEDEP)
+AC_SUBST(RKTL_PRE)
+AC_SUBST(RKTL_POST)
 AC_SUBST(RACKET)
 AC_SUBST(SCHEME_DIR)
 AC_SUBST(MACH)