* configure.in (gnumake): check for GNU make.

* Makefile.in (uncommon.mk): includes filtered common.mk.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@18600 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

ChangeLog

@@ -1,4 +1,8 @@
-Thu Aug 14 11:45:09 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Thu Aug 14 12:01:39 2008  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* configure.in (gnumake): check for GNU make.
+
+	* Makefile.in (uncommon.mk): includes filtered common.mk.
 
 	* common.mk (parse.h): workaround for nmake.
 

Makefile.in

@@ -158,7 +158,7 @@ fake.rb:	Makefile
 
 Makefile:	$(srcdir)/Makefile.in $(srcdir)/enc/Makefile.in
 
-$(MKFILES): config.status $(srcdir)/common.mk
+$(MKFILES): config.status
 		MAKE=$(MAKE) $(SHELL) ./config.status
 		@{ \
 		    echo "all:; -@rm -f conftest.mk"; \
@@ -168,6 +168,9 @@ $(MKFILES): config.status $(srcdir)/common.mk
 		$(MAKE) -f conftest.mk | grep '^AUTO_REMAKE$$' >/dev/null 2>&1 || \
 		{ echo "Makefile updated, restart."; exit 1; }
 
+uncommon.mk: $(srcdir)/common.mk
+		sed 's/{\$$([^(){}]*)[^{}]*}//g' $< > $@
+
 config.status:	$(srcdir)/configure $(srcdir)/enc/Makefile.in
 		MINIRUBY="$(MINIRUBY)" $(SHELL) ./config.status --recheck
 

configure.in

@@ -1849,13 +1849,39 @@ case "$target_os" in
 	esac
         MINIDLNOBJ=dmydln.o
 	;;
+    *msdosdjgpp*)
+	FIRSTMAKEFILE=GNUmakefile:djgpp/GNUmakefile.in
+	;;
     *)
 	;;
 esac
 MINIOBJS="$MINIDLNOBJ"
 
-case "$build_os" in
-  *msdosdjgpp*) FIRSTMAKEFILE=GNUmakefile:djgpp/GNUmakefile.in;;
+case "$FIRSTMAKEFILE" in
+dnl (
+*GNUmakefile:*)
+    gnumake=yes
+    ;;
+dnl (
+*)
+    AC_MSG_CHECKING([for if ${MAKE-make} is GNU make])
+    mkdir conftest.dir
+    echo "all:; @echo yes" > conftest.dir/GNUmakefile
+    echo "all:; @echo no" > conftest.dir/Makefile
+    gnumake=`(cd conftest.dir; ${MAKE-make})`
+    rm -fr conftest.dir
+    case "$gnumake" in
+    dnl (
+    *yes*)
+	echo "include Makefile" > GNUmakefile
+	echo "include uncommon.mk" >> GNUmakefile
+	gnumake=yes;;
+    dnl (
+    *)
+	gnumake=no;;
+    esac
+    AC_MSG_RESULT($gnumake)
+    ;;
 esac
 
 CPPFLAGS="$CPPFLAGS "'$(DEFS)'
@@ -2069,7 +2095,10 @@ AC_CONFIG_FILES(Makefile, [{
 	sed '/^MISSING/s/\$U\././g' Makefile
 	echo; test x"$EXEEXT" = x || echo 'miniruby: miniruby$(EXEEXT)'
 	test "$RUBY_INSTALL_NAME$EXEEXT" = ruby || echo 'ruby: $(PROGRAM);'
-	sed ['s/{\$([^(){}]*)[^{}]*}//g'] ${srcdir}/common.mk
+	if test "$gnumake" != yes; then
+	    echo ['$(MKFILES): $(srcdir)/common.mk']
+	    sed ['s/{\$([^(){}]*)[^{}]*}//g'] ${srcdir}/common.mk
+	fi
       } >> confmk$$.tmp && mv -f confmk$$.tmp Makefile],
-[RUBY_INSTALL_NAME=$RUBY_INSTALL_NAME EXEEXT=$EXEEXT])
+[RUBY_INSTALL_NAME=$RUBY_INSTALL_NAME EXEEXT=$EXEEXT gnumake=$gnumake])
 AC_OUTPUT

cygwin/GNUmakefile.in

@@ -1,4 +1,5 @@
 include Makefile
+include uncommon.mk
 
 ENABLE_SHARED=@ENABLE_SHARED@
 DLLWRAP = @DLLWRAP@ --target=@target_os@

djgpp/GNUmakefile.in

@@ -1,2 +1,3 @@
 include Makefile
 VPATH = $(srcdir) $(srcdir)/missing
+include uncommon.mk