configure.in: Disable serial configure by default.

	* configure.in: Disable serial configure by default.
	* configure: Regenerate.
	* Makefile.tpl: Abolish .NOTPARALLEL.
	* Makefile.in: Regenerate.

From-SVN: r67747

ChangeLog

 2003-06-10  Nathanael Nerode  <neroden@gcc.gnu.org>
 
+	* configure.in: Disable serial configure by default.
+	* configure: Regenerate.
+	* Makefile.tpl: Abolish .NOTPARALLEL.
+	* Makefile.in: Regenerate.
+
 	* Makefile.tpl: Replace {build,host,target}_canonical by
 	{build,host,target}.
 	* Makefile.in: Regenerate.

Makefile.in

@@ -17293,7 +17293,7 @@ clean-target-libgcc:
 
 .PHONY: check do-check
 check:
-	$(MAKE) do-check NOTPARALLEL=parallel-ok
+	$(MAKE) do-check
 
 # Only include modules actually being configured and built.
 do-check: maybe-check-gcc  \
@@ -23693,7 +23693,7 @@ check-gcc-c++:
 
 .PHONY: check-c++
 check-c++:
-	$(MAKE) check-target-libstdc++-v3 check-gcc-c++ NOTPARALLEL=parallel-ok
+	$(MAKE) check-target-libstdc++-v3 check-gcc-c++
 
 .PHONY: install-gcc maybe-install-gcc
 maybe-install-gcc:
@@ -23890,12 +23890,6 @@ $(srcdir)/configure: @MAINT@ $(srcdir)/configure.in $(srcdir)/config/acx.m4
 # Special directives to GNU Make
 # ------------------------------
 
-# Tell GNU make 3.79 not to run the top level in parallel.  This 
-# prevents contention for $builddir/$target/config.cache, as well
-# as minimizing scatter in file system caches.
-NOTPARALLEL = .NOTPARALLEL
-$(NOTPARALLEL):
-
 # Don't pass command-line variables to submakes.
 .NOEXPORT:
 MAKEOVERRIDES=

Makefile.tpl

@@ -731,7 +731,7 @@ clean-target-libgcc:
 
 .PHONY: check do-check
 check:
-	$(MAKE) do-check NOTPARALLEL=parallel-ok
+	$(MAKE) do-check
 
 # Only include modules actually being configured and built.
 do-check: maybe-check-gcc [+
@@ -1298,7 +1298,7 @@ check-gcc-c++:
 
 .PHONY: check-c++
 check-c++:
-	$(MAKE) check-target-libstdc++-v3 check-gcc-c++ NOTPARALLEL=parallel-ok
+	$(MAKE) check-target-libstdc++-v3 check-gcc-c++
 
 .PHONY: install-gcc maybe-install-gcc
 maybe-install-gcc:
@@ -1495,12 +1495,6 @@ $(srcdir)/configure: @MAINT@ $(srcdir)/configure.in $(srcdir)/config/acx.m4
 # Special directives to GNU Make
 # ------------------------------
 
-# Tell GNU make 3.79 not to run the top level in parallel.  This 
-# prevents contention for $builddir/$target/config.cache, as well
-# as minimizing scatter in file system caches.
-NOTPARALLEL = .NOTPARALLEL
-$(NOTPARALLEL):
-
 # Don't pass command-line variables to submakes.
 .NOEXPORT:
 MAKEOVERRIDES=

configure.in

@@ -1698,18 +1698,25 @@ AC_SUBST_FILE(maybe_dependencies)
 # Create the serialization dependencies.  This uses a temporary file.
 
 AC_ARG_ENABLE([serial-configure],
-[  --disable-serial-[{host,target,build}-]configure
-                          Don't force sequential configuration of
+[  --enable-serial-[{host,target,build}-]configure
+                          Force sequential configuration of
                           sub-packages for the host, target or build
-			  machine, or of any sub-packages at all])
+			  machine, or all sub-packages])
+
+case ${enable_serial_configure} in
+  yes)
+    enable_serial_build_configure=yes
+    enable_serial_host_configure=yes
+    enable_serial_target_configure=yes
+    ;;
+esac
 
 # These force 'configure's to be done one at a time, to avoid problems
 # with contention over a shared config.cache.
 rm -f serdep.tmp
 echo '# serdep.tmp' > serdep.tmp
 olditem=
-test "x${enable_serial_configure}" = xno ||
-test "x${enable_serial_build_configure}" = xno ||
+test "x${enable_serial_build_configure}" = xyes &&
 for item in ${build_configdirs} ; do
   case ${olditem} in
     "") ;;
@@ -1718,8 +1725,7 @@ for item in ${build_configdirs} ; do
   olditem=${item}
 done
 olditem=
-test "x${enable_serial_configure}" = xno ||
-test "x${enable_serial_host_configure}" = xno ||
+test "x${enable_serial_host_configure}" = xyes &&
 for item in ${configdirs} ; do
   case ${olditem} in
     "") ;;
@@ -1728,8 +1734,7 @@ for item in ${configdirs} ; do
   olditem=${item}
 done
 olditem=
-test "x${enable_serial_configure}" = xno ||
-test "x${enable_serial_target_configure}" = xno ||
+test "x${enable_serial_target_configure}" = xyes &&
 for item in ${target_configdirs} ; do
   case ${olditem} in
     "") ;;