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* cfgloop.h (fix_loop_placement, can_duplicate_loop_p,
[pf3gnuchains/gcc-fork.git] / Makefile.tpl
index de5291f..98c7260 100644 (file)
@@ -6,7 +6,7 @@ in
 #
 # Makefile for directory with subdirs to build.
 #   Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
-#   1999, 2000, 2001, 2002 Free Software Foundation
+#   1999, 2000, 2001, 2002, 2003 Free Software Foundation
 #
 # This file is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -23,12 +23,6 @@ in
 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 #
 
-# 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):
-
 VPATH=@srcdir@
 links=@configlinks@
 
@@ -55,6 +49,9 @@ enable_version_specific_runtime_libs = @enable_version_specific_runtime_libs@
 gcc_version_trigger = @gcc_version_trigger@
 gcc_version = @gcc_version@
 
+# The gcc driver likes to know the arguments it was configured with.
+TOPLEVEL_CONFIGURE_ARGUMENTS=@TOPLEVEL_CONFIGURE_ARGUMENTS@
+
 srcdir = @srcdir@
 
 prefix = @prefix@
@@ -282,7 +279,7 @@ USUAL_AS_FOR_TARGET = ` \
     if [ '$(host_canonical)' = '$(target_canonical)' ] ; then \
       echo $(AS); \
     else \
-       t='$(program_transform_name)'; echo as | sed -e 's/x/x/' $$t ; \
+       echo as | sed '$(program_transform_name)' ; \
     fi; \
   fi`
 
@@ -296,7 +293,7 @@ USUAL_LD_FOR_TARGET = ` \
     if [ '$(host_canonical)' = '$(target_canonical)' ] ; then \
       echo $(LD); \
     else \
-       t='$(program_transform_name)'; echo ld | sed -e 's/x/x/' $$t ; \
+       echo ld | sed '$(program_transform_name)' ; \
     fi; \
   fi`
 
@@ -308,7 +305,7 @@ USUAL_DLLTOOL_FOR_TARGET = ` \
     if [ '$(host_canonical)' = '$(target_canonical)' ] ; then \
       echo $(DLLTOOL); \
     else \
-       t='$(program_transform_name)'; echo dlltool | sed -e 's/x/x/' $$t ; \
+       echo dlltool | sed '$(program_transform_name)' ; \
     fi; \
   fi`
 
@@ -320,7 +317,7 @@ USUAL_WINDRES_FOR_TARGET = ` \
     if [ '$(host_canonical)' = '$(target_canonical)' ] ; then \
       echo $(WINDRES); \
     else \
-       t='$(program_transform_name)'; echo windres | sed -e 's/x/x/' $$t ; \
+       echo windres | sed '$(program_transform_name)' ; \
     fi; \
   fi`
 
@@ -332,7 +329,7 @@ USUAL_AR_FOR_TARGET = ` \
     if [ '$(host_canonical)' = '$(target_canonical)' ] ; then \
       echo $(AR); \
     else \
-       t='$(program_transform_name)'; echo ar | sed -e 's/x/x/' $$t ; \
+       echo ar | sed '$(program_transform_name)' ; \
     fi; \
   fi`
 
@@ -348,7 +345,7 @@ USUAL_RANLIB_FOR_TARGET = ` \
          echo ranlib; \
       fi; \
     else \
-       t='$(program_transform_name)'; echo ranlib | sed -e 's/x/x/' $$t ; \
+       echo ranlib | sed '$(program_transform_name)' ; \
     fi; \
   fi`
 
@@ -362,7 +359,7 @@ USUAL_NM_FOR_TARGET = ` \
     if [ '$(host_canonical)' = '$(target_canonical)' ] ; then \
       echo $(NM); \
     else \
-       t='$(program_transform_name)'; echo nm | sed -e 's/x/x/' $$t ; \
+       echo nm | sed '$(program_transform_name)' ; \
     fi; \
   fi`
 
@@ -372,6 +369,10 @@ all: all.normal
 .PHONY: all
 
 #### host and target specific makefile fragments come in here.
+@target_makefile_frag@
+@alphaieee_frag@
+@ospace_frag@
+@host_makefile_frag@
 ###
 
 # Flags to pass down to all sub-makes.
@@ -390,6 +391,7 @@ BASE_FLAGS_TO_PASS = \
        "CXXFLAGS=$(CXXFLAGS)" \
        "CXXFLAGS_FOR_TARGET=$(CXXFLAGS_FOR_TARGET)" \
        "CXX_FOR_TARGET=$(CXX_FOR_TARGET)" \
+       "DESTDIR=$(DESTDIR)" \
        "DLLTOOL_FOR_TARGET=$(DLLTOOL_FOR_TARGET)" \
        "INSTALL=$(INSTALL)" \
        "INSTALL_DATA=$(INSTALL_DATA)" \
@@ -589,13 +591,13 @@ do-[+target+]:
              done; \
              ;; \
            esac ; \
-           if (cd ./$$i; \
+           (cd ./$$i && \
                $(MAKE) $(BASE_FLAGS_TO_PASS) "AR=$${AR}" "AS=$${AS}" \
                        "CC=$${CC}" "CXX=$${CXX}" "LD=$${LD}" "NM=$${NM}" \
                        "`echo \"RANLIB=$${RANLIB}\" | sed -e 's/.*=$$/XFOO=/'`" \
                        "DLLTOOL=$${DLLTOOL}" "WINDRES=$${WINDRES}" \
-                       [+target+]); \
-           then true; else exit 1; fi; \
+                       [+target+]) \
+           || exit 1; \
          else true; fi; \
        done
        # Break into two pieces
@@ -607,13 +609,13 @@ do-[+target+]:
            for flag in $(EXTRA_TARGET_FLAGS); do \
                eval `echo "$$flag" | sed -e "s|^\([^=]*\)=\(.*\)|\1='\2'; export \1|"`; \
            done; \
-           if (cd $(TARGET_SUBDIR)/$$i; \
+           (cd $(TARGET_SUBDIR)/$$i && \
                $(MAKE) $(BASE_FLAGS_TO_PASS) "AR=$${AR}" "AS=$${AS}" \
                        "CC=$${CC}" "CXX=$${CXX}" "LD=$${LD}" "NM=$${NM}" \
                        "`echo \"RANLIB=$${RANLIB}\" | sed -e 's/.*=$$/XFOO=/'`" \
                        "DLLTOOL=$${DLLTOOL}" "WINDRES=$${WINDRES}" \
-                       [+target+]); \
-           then true; else exit 1; fi; \
+                       [+target+]) \
+           || exit 1; \
          else true; fi; \
        done
 [+ ENDFOR recursive_targets +]
@@ -635,7 +637,7 @@ do-info: maybe-all-texinfo
 install-info: do-install-info dir.info
        s=`cd $(srcdir); ${PWD}`; export s; \
        if [ -f dir.info ] ; then \
-         $(INSTALL_DATA) dir.info $(infodir)/dir.info ; \
+         $(INSTALL_DATA) dir.info $(DESTDIR)$(infodir)/dir.info ; \
        else true ; fi
 
 local-clean:
@@ -643,6 +645,7 @@ local-clean:
 
 local-distclean:
        -rm -f Makefile config.status config.cache mh-frag mt-frag
+       -rm -f multilib.out multilib.tmp maybedep.tmp serdep.tmp
        -if [ "$(TARGET_SUBDIR)" != "." ]; then \
          rm -rf $(TARGET_SUBDIR); \
        else true; fi
@@ -671,7 +674,7 @@ $(CLEAN_MODULES) $(CLEAN_X11_MODULES) clean-gcc:
          r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd $${dir}; $(MAKE) $(FLAGS_TO_PASS) clean); \
+         (cd $${dir} && $(MAKE) $(FLAGS_TO_PASS) clean); \
        else \
          true; \
        fi
@@ -684,7 +687,7 @@ $(CLEAN_TARGET_MODULES):
          r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd $(TARGET_SUBDIR)/$${dir}; $(MAKE) $(TARGET_FLAGS_TO_PASS) clean); \
+         (cd $(TARGET_SUBDIR)/$${dir} && $(MAKE) $(TARGET_FLAGS_TO_PASS) clean); \
        else \
          true; \
        fi
@@ -742,7 +745,7 @@ install.all: install-no-fixedincludes
        @if [ -f ./gcc/Makefile ] ; then \
                r=`${PWD}` ; export r ; \
                $(SET_LIB_PATH) \
-               (cd ./gcc; \
+               (cd ./gcc && \
                $(MAKE) $(FLAGS_TO_PASS) install-headers) ; \
        else \
                true ; \
@@ -765,7 +768,7 @@ installdirs: mkinstalldirs
 
 dir.info: do-install-info
        if [ -f $(srcdir)/texinfo/gen-info-dir ] ; then \
-         $(srcdir)/texinfo/gen-info-dir $(infodir) $(srcdir)/texinfo/dir.info-template > dir.info.new ; \
+         $(srcdir)/texinfo/gen-info-dir $(DESTDIR)$(infodir) $(srcdir)/texinfo/dir.info-template > dir.info.new ; \
          mv -f dir.info.new dir.info ; \
        else true ; \
        fi
@@ -784,16 +787,16 @@ etags tags: TAGS
 # built are.
 TAGS: do-TAGS
 
-
 # --------------------------------------
 # Modules which run on the build machine
 # --------------------------------------
 [+ FOR build_modules +]
 .PHONY: configure-build-[+module+] maybe-configure-build-[+module+]
 maybe-configure-build-[+module+]:
-configure-build-[+module+]: $(BUILD_SUBDIR)/[+module+]/Makefile
-@build_prefix@$(BUILD_SUBDIR)/[+module+]/Makefile: config.status
-       @[ -d $(BUILD_SUBDIR)/[+module+] ] || mkdir $(BUILD_SUBDIR)/[+module+];\
+configure-build-[+module+]:
+       @test ! -f $(BUILD_SUBDIR)/[+module+]/Makefile || exit 0; \
+           [ -d $(BUILD_SUBDIR)/[+module+] ] || \
+               mkdir $(BUILD_SUBDIR)/[+module+];\
            r=`${PWD}`; export r; \
            s=`cd $(srcdir); ${PWD}`; export s; \
            AR="$(AR_FOR_BUILD)"; export AR; \
@@ -864,10 +867,9 @@ all-build-[+module+]: configure-build-[+module+]
 [+ FOR host_modules +]
 .PHONY: configure-[+module+] maybe-configure-[+module+]
 maybe-configure-[+module+]:
-configure-[+module+]: [+module+]/Makefile
-
-[+module+]/Makefile: config.status
-       @[ -d [+module+] ] || mkdir [+module+]; \
+configure-[+module+]:
+       @test ! -f [+module+]/Makefile || exit 0; \
+       [ -d [+module+] ] || mkdir [+module+]; \
        r=`${PWD}`; export r; \
        s=`cd $(srcdir); ${PWD}`; export s; \
        CC="$(CC)"; export CC; \
@@ -909,7 +911,7 @@ all-[+module+]: configure-[+module+]
        @r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd [+module+]; $(MAKE) $(FLAGS_TO_PASS)[+ 
+         (cd [+module+] && $(MAKE) $(FLAGS_TO_PASS)[+ 
            IF with_x 
              +] $(X11_FLAGS_TO_PASS)[+ 
            ENDIF with_x +] all)
@@ -925,7 +927,7 @@ check-[+module+]:
            r=`${PWD}`; export r; \
            s=`cd $(srcdir); ${PWD}`; export s; \
            $(SET_LIB_PATH) \
-           (cd [+module+]; $(MAKE) $(FLAGS_TO_PASS)[+ 
+           (cd [+module+] && $(MAKE) $(FLAGS_TO_PASS)[+ 
              IF with_x 
                +] $(X11_FLAGS_TO_PASS)[+ 
              ENDIF with_x +] check); \
@@ -936,7 +938,7 @@ check-[+module+]:
        @r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd [+module+]; $(MAKE) $(FLAGS_TO_PASS)[+ 
+         (cd [+module+] && $(MAKE) $(FLAGS_TO_PASS)[+ 
            IF with_x 
              +] $(X11_FLAGS_TO_PASS)[+ 
            ENDIF with_x +] check)
@@ -953,7 +955,7 @@ install-[+module+]: installdirs
        @r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd [+module+]; $(MAKE) $(FLAGS_TO_PASS)[+ 
+         (cd [+module+] && $(MAKE) $(FLAGS_TO_PASS)[+ 
            IF with_x 
              +] $(X11_FLAGS_TO_PASS)[+ 
            ENDIF with_x +] install)
@@ -966,18 +968,18 @@ install-[+module+]: installdirs
 [+ FOR target_modules +]
 .PHONY: configure-target-[+module+] maybe-configure-target-[+module+]
 maybe-configure-target-[+module+]:
-configure-target-[+module+]: $(TARGET_SUBDIR)/[+module+]/Makefile
-
-# Don't manually override CC_FOR_TARGET at make time; get it set right
-# at configure time.  Otherwise multilibs may be wrong.
-$(TARGET_SUBDIR)/[+module+]/multilib.out: maybe-all-gcc
-       @[ -d $(TARGET_SUBDIR)/[+module+] ] || mkdir $(TARGET_SUBDIR)/[+module+];\
-       r=`${PWD}`; export r; \
-       echo "Configuring multilibs for [+module+]"; \
-       $(CC_FOR_TARGET) --print-multi-lib > $(TARGET_SUBDIR)/[+module+]/multilib.out 2> /dev/null
 
-$(TARGET_SUBDIR)/[+module+]/Makefile: config.status $(TARGET_SUBDIR)/[+module+]/multilib.out
-       @[ -d $(TARGET_SUBDIR)/[+module+] ] || mkdir $(TARGET_SUBDIR)/[+module+];\
+# There's only one multilib.out.  Cleverer subdirs shouldn't need it copied.
+$(TARGET_SUBDIR)/[+module+]/multilib.out: multilib.out
+       @[ -d $(TARGET_SUBDIR)/[+module+] ] || \
+           mkdir $(TARGET_SUBDIR)/[+module+]; \
+       rm -f $(TARGET_SUBDIR)/[+module+]/Makefile || : ; \
+       cp multilib.out $(TARGET_SUBDIR)/[+module+]/multilib.out
+
+configure-target-[+module+]: $(TARGET_SUBDIR)/[+module+]/multilib.out
+       @test ! -f $(TARGET_SUBDIR)/[+module+]/Makefile || exit 0; \
+           [ -d $(TARGET_SUBDIR)/[+module+] ] || \
+               mkdir $(TARGET_SUBDIR)/[+module+];\
            r=`${PWD}`; export r; \
            s=`cd $(srcdir); ${PWD}`; export s; \
            $(SET_LIB_PATH) \
@@ -1046,7 +1048,7 @@ all-target-[+module+]: configure-target-[+module+]
        @r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd $(TARGET_SUBDIR)/[+module+]; \
+         (cd $(TARGET_SUBDIR)/[+module+] && \
            $(MAKE) $(TARGET_FLAGS_TO_PASS) [+
               IF raw_cxx 
                 +] 'CXX=$$(RAW_CXX_FOR_TARGET)' 'CXX_FOR_TARGET=$$(RAW_CXX_FOR_TARGET)' [+ 
@@ -1062,7 +1064,7 @@ check-target-[+module+]:
        @r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd $(TARGET_SUBDIR)/[+module+]; \
+         (cd $(TARGET_SUBDIR)/[+module+] && \
            $(MAKE) $(TARGET_FLAGS_TO_PASS) [+
               IF raw_cxx 
                 +] 'CXX=$$(RAW_CXX_FOR_TARGET)' 'CXX_FOR_TARGET=$$(RAW_CXX_FOR_TARGET)' [+ 
@@ -1081,7 +1083,7 @@ install-target-[+module+]: installdirs
        @r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd $(TARGET_SUBDIR)/[+module+]; \
+         (cd $(TARGET_SUBDIR)/[+module+] && \
            $(MAKE) $(TARGET_FLAGS_TO_PASS) install)
 [+ ENDIF no_install +]
 [+ ENDFOR target_modules +]
@@ -1097,16 +1099,16 @@ install-target-[+module+]: installdirs
 # gcc is the only module which uses GCC_FLAGS_TO_PASS.
 .PHONY: configure-gcc maybe-configure-gcc
 maybe-configure-gcc:
-configure-gcc: gcc/Makefile
-
-gcc/Makefile: config.status
-       @[ -d gcc ] || mkdir gcc; \
+configure-gcc:
+       @test ! -f gcc/Makefile || exit 0; \
+       [ -d gcc ] || mkdir gcc; \
        r=`${PWD}`; export r; \
        s=`cd $(srcdir); ${PWD}`; export s; \
        CC="$(CC)"; export CC; \
        CFLAGS="$(CFLAGS)"; export CFLAGS; \
        CXX="$(CXX)"; export CXX; \
        CXXFLAGS="$(CXXFLAGS)"; export CXXFLAGS; \
+       TOPLEVEL_CONFIGURE_ARGUMENTS="$(TOPLEVEL_CONFIGURE_ARGUMENTS)"; export TOPLEVEL_CONFIGURE_ARGUMENTS; \
        if [ z$(build_canonical) !=  z$(host_canoncial) ] ; then \
          AR="$(AR)"; export AR; \
          AS="$(AS)"; export AS; \
@@ -1146,12 +1148,12 @@ all-gcc: configure-gcc
          r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd gcc; $(MAKE) $(GCC_FLAGS_TO_PASS) quickstrap); \
+         (cd gcc && $(MAKE) $(GCC_FLAGS_TO_PASS) quickstrap); \
        else \
          r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd gcc; $(MAKE) $(GCC_FLAGS_TO_PASS) all); \
+         (cd gcc && $(MAKE) $(GCC_FLAGS_TO_PASS) all); \
        fi
 
 # Building GCC uses some tools for rebuilding "source" files
@@ -1213,7 +1215,7 @@ check-gcc:
          r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd gcc; $(MAKE) $(GCC_FLAGS_TO_PASS) check); \
+         (cd gcc && $(MAKE) $(GCC_FLAGS_TO_PASS) check); \
        else \
          true; \
        fi
@@ -1224,7 +1226,7 @@ check-gcc-c++:
          r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd gcc; $(MAKE) $(GCC_FLAGS_TO_PASS) check-c++); \
+         (cd gcc && $(MAKE) $(GCC_FLAGS_TO_PASS) check-c++); \
        else \
          true; \
        fi
@@ -1239,7 +1241,7 @@ install-gcc:
          r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}`; export s; \
          $(SET_LIB_PATH) \
-         (cd gcc; $(MAKE) $(GCC_FLAGS_TO_PASS) install); \
+         (cd gcc && $(MAKE) $(GCC_FLAGS_TO_PASS) install); \
        else \
          true; \
        fi
@@ -1259,7 +1261,7 @@ gcc-no-fixedincludes:
          r=`${PWD}`; export r; \
          s=`cd $(srcdir); ${PWD}` ; export s; \
          $(SET_LIB_PATH) \
-         (cd ./gcc; \
+         (cd ./gcc && \
           $(MAKE) $(GCC_FLAGS_TO_PASS) install); \
          rm -rf gcc/include; \
          mv gcc/tmp-include gcc/include 2>/dev/null; \
@@ -1316,7 +1318,7 @@ all-itcl: maybe-all-tcl maybe-all-tk
 # We put install-tcl before install-itcl because itcl wants to run a
 # program on installation which uses the Tcl libraries.
 install-itcl: maybe-install-tcl
-all-sid: maybe-all-tcl maybe-all-tk
+all-sid: maybe-all-libiberty maybe-all-bfd maybe-all-opcodes maybe-all-tcl maybe-all-tk
 install-sid: maybe-install-tcl maybe-install-tk
 all-sim: maybe-all-libiberty maybe-all-bfd maybe-all-opcodes maybe-all-readline maybe-configure-gdb
 configure-tk: maybe-configure-tcl
@@ -1333,7 +1335,6 @@ all-diff: maybe-all-libiberty
 all-fastjar: maybe-all-zlib maybe-all-libiberty
 all-fileutils: maybe-all-libiberty
 all-flex: maybe-all-libiberty maybe-all-bison maybe-all-byacc
-all-grep: maybe-all-libiberty
 all-gzip: maybe-all-libiberty
 all-hello: maybe-all-libiberty
 all-m4: maybe-all-libiberty maybe-all-texinfo
@@ -1343,7 +1344,6 @@ all-prms: maybe-all-libiberty
 all-recode: maybe-all-libiberty
 all-sed: maybe-all-libiberty
 all-send-pr: maybe-all-prms
-all-snavigator: maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-tix maybe-all-db maybe-all-grep maybe-all-libgui
 all-tar: maybe-all-libiberty
 all-uudecode: maybe-all-libiberty
 
@@ -1395,21 +1395,42 @@ configure-target-qthreads: $(ALL_GCC_C)
 # Regenerating top level configury
 # --------------------------------
 
+# Multilib.out tells target dirs what multilibs they should build.
+# There is really only one copy.  We use the 'timestamp' method to
+# work around various timestamp bugs on some systems.
+# We use move-if-change so that it's only considered updated when it
+# actually changes, because it has to depend on a phony target.
+multilib.out: maybe-all-gcc
+       @r=`${PWD}`; export r; \
+       echo "Checking multilib configuration..."; \
+       $(CC_FOR_TARGET) --print-multi-lib > multilib.tmp 2> /dev/null ; \
+       $(SHELL) $(srcdir)/move-if-change multilib.tmp multilib.out ; \
+
 # Rebuilding Makefile.in, using autogen.
+AUTOGEN = autogen
 $(srcdir)/Makefile.in: # $(srcdir)/Makefile.tpl $(srcdir)/Makefile.def
-       cd $(srcdir) && autogen Makefile.def
+       cd $(srcdir) && $(AUTOGEN) Makefile.def
 
-# with the gnu make, this is done automatically.
+# Rebuilding Makefile.
+Makefile: $(srcdir)/Makefile.in config.status
+       CONFIG_FILES=$@ CONFIG_HEADERS= $(SHELL) ./config.status
 
-host_makefile_frag=@host_makefile_frag@
-target_makefile_frag=@target_makefile_frag@
-
-Makefile: Makefile.in configure.in $(host_makefile_frag) $(target_makefile_frag) $(gcc_version_trigger)
-       $(SHELL) ./config.status
+config.status: configure $(gcc_version_trigger)
+       $(SHELL) ./config.status --recheck
 
+# Rebuilding configure.
+AUTOCONF = autoconf
+$(srcdir)/configure: $(srcdir)/configure.in $(srcdir)/config/acx.m4
+       cd $(srcdir) && $(AUTOCONF)
 #
 
 .NOEXPORT:
 MAKEOVERRIDES=
 
+# 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):
+
 # end of Makefile.in