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(toplevel patch) Real make targets for configure-target-*

From: Nathanael Nerode <neroden at twcny dot rr dot com>
To: gcc-patches at gcc dot gnu dot org, gdb-patches at sources dot redhat dot com, binutils at sources dot redhat dot com, dj at redhat dot com
Date: Tue, 3 Dec 2002 11:30:33 -0500
Subject: (toplevel patch) Real make targets for configure-target-*

Real targets for configure-target-*.  More complicated than the 
configure-build-* case because of:
- multilibs; configuration depends on multilib.out, which depends on 
(BASE_)CC_FOR_TARGET.
- dependencies: depending lines must change to match

Tested on i686-pc-linux-gnu.

	* configure.in: Introduce BASE_CC_FOR_TARGET.
	* Makefile.tpl: Realize configure-target-* targets.
	* Makefile.in: Regenerate.

Index: configure.in
===================================================================
RCS file: /cvs/gcc/gcc/configure.in,v
retrieving revision 1.177.4.13
diff -u -r1.177.4.13 configure.in
--- configure.in	3 Dec 2002 03:42:19 -0000	1.177.4.13
+++ configure.in	3 Dec 2002 16:23:08 -0000
@@ -1653,6 +1653,12 @@
 qqCXX_FOR_TARGET=`echo "$qCXX_FOR_TARGET" | sed -e 's,[$][$],$$$$,g'`
 qqRAW_CXX_FOR_TARGET=`echo "$qRAW_CXX_FOR_TARGET" | sed -e 's,[$][$],$$$$,g'`
 
+# BASE_CC_FOR_TARGET is the actual program file of CC_FOR_TARGET,
+# for use in dependencies.  Replace $$r with a relative
+# path if it's present.
+set dummy $CC_FOR_TARGET; cc_for_target_first_word=$2
+BASE_CC_FOR_TARGET=`echo "$cc_for_target_first_word" | sed -e 's,[$][$]r,.,'`
+
 sedtemp=sed.$$
 cat >$sedtemp <<EOF
 s%@GDB_TK@%${GDB_TK}%
@@ -1669,6 +1675,7 @@
 s%@target_configargs@%${targargs}%
 s%@FLAGS_FOR_TARGET@%${FLAGS_FOR_TARGET}%
 s%@CC_FOR_TARGET@%\$(STAGE_CC_WRAPPER) ${CC_FOR_TARGET}%
+s%@BASE_CC_FOR_TARGET@%${BASE_CC_FOR_TARGET}%
 s%@GCJ_FOR_TARGET@%\$(STAGE_CC_WRAPPER) ${GCJ_FOR_TARGET}%
 s%@CXX_FOR_TARGET@%\$(STAGE_CC_WRAPPER) ${qCXX_FOR_TARGET}%
 s%@RAW_CXX_FOR_TARGET@%\$(STAGE_CC_WRAPPER) ${qRAW_CXX_FOR_TARGET}%
@@ -1684,8 +1691,4 @@
 rm -f Makefile $sedtemp
 mv -f Makefile.tem Makefile
 
-#
-# Local Variables:
-# fill-column: 131
-# End:
 #
--- Makefile.tpl.base	2002-12-03 11:16:05.000000000 -0500
+++ Makefile.tpl	2002-12-03 11:27:05.000000000 -0500
@@ -259,6 +259,7 @@
 # Should be substed by configure.in
 FLAGS_FOR_TARGET = @FLAGS_FOR_TARGET@
 CC_FOR_TARGET = @CC_FOR_TARGET@
+BASE_CC_FOR_TARGET = @BASE_CC_FOR_TARGET@
 CXX_FOR_TARGET = @CXX_FOR_TARGET@
 RAW_CXX_FOR_TARGET = @RAW_CXX_FOR_TARGET@
 CXX_FOR_TARGET_FOR_RECURSIVE_MAKE = @CXX_FOR_TARGET_FOR_RECURSIVE_MAKE@
@@ -923,30 +924,21 @@
 [+ ENDIF no_install +]
 [+ ENDFOR host_modules +]
 
-# --------------------------------------
+# ---------------------------------------
 # Modules which run on the target machine
-# --------------------------------------
+# ---------------------------------------
 [+ FOR target_modules +]
 .PHONY: configure-target-[+module+] maybe-configure-target-[+module+]
 maybe-configure-target-[+module+]:
-configure-target-[+module+]:
+configure-target-[+module+]: $(TARGET_SUBDIR)/[+module+]/Makefile
+
+$(TARGET_SUBDIR)/[+module+]/multilib.out: $(BASE_CC_FOR_TARGET)
 	@r=`${PWD}`; export r; \
-	  $(CC_FOR_TARGET) --print-multi-lib > $(TARGET_SUBDIR)/[+module+]/tmpmulti.out 2> /dev/null; \
-	  if [ -s $(TARGET_SUBDIR)/[+module+]/tmpmulti.out ]; then \
-	    if [ -f $(TARGET_SUBDIR)/[+module+]/multilib.out ]; then \
-	      if cmp $(TARGET_SUBDIR)/[+module+]/multilib.out $(TARGET_SUBDIR)/[+module+]/tmpmulti.out > /dev/null; then \
-		rm -f $(TARGET_SUBDIR)/[+module+]/tmpmulti.out; \
-	      else \
-		echo "Multilibs changed for [+module+], reconfiguring"; \
-		rm -f $(TARGET_SUBDIR)/[+module+]/multilib.out $(TARGET_SUBDIR)/[+module+]/Makefile; \
-		mv $(TARGET_SUBDIR)/[+module+]/tmpmulti.out $(TARGET_SUBDIR)/[+module+]/multilib.out; \
-	      fi; \
-	    else \
-	      mv $(TARGET_SUBDIR)/[+module+]/tmpmulti.out $(TARGET_SUBDIR)/[+module+]/multilib.out; \
-	    fi; \
-	fi; exit 0	# break command into two pieces
-	@if [ -d $(srcdir)/[+module+] ]; then \
-	    [ -d $(TARGET_SUBDIR)/[+module+] ] || mkdir $(TARGET_SUBDIR)/[+module+];\
+	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 $(TARGET_SUBDIR)/[+module+];\
 	    r=`${PWD}`; export r; \
 	    s=`cd $(srcdir); ${PWD}`; export s; \
 	    $(SET_LIB_PATH) \
@@ -1007,10 +999,7 @@
 	    CONFIG_SITE=no-such-file $(SHELL) $${libsrcdir}/configure \
 	      $(TARGET_CONFIGARGS) $${srcdiroption} \
 	      --with-target-subdir="$(TARGET_SUBDIR)" \
-	      || exit 1; \
-	  else \
-	    true; \
-	  fi
+	      || exit 1
 
 .PHONY: all-target-[+module+] maybe-all-target-[+module+]
 maybe-all-target-[+module+]:
@@ -1266,34 +1255,34 @@
 ALL_GCC_CXX = $(ALL_GCC_C) maybe-all-target-libstdc++-v3
 
 # Target modules specific to gcc.
-configure-target-boehm-gc: $(ALL_GCC_C) maybe-configure-target-qthreads
-configure-target-fastjar: maybe-configure-target-zlib
+$(TARGET_SUBDIR)/boehm-gc/Makefile: $(ALL_GCC_C) maybe-configure-target-qthreads
+$(TARGET_SUBDIR)/fastjar/Makefile: maybe-configure-target-zlib
 all-target-fastjar: maybe-all-target-zlib maybe-all-target-libiberty
-configure-target-libf2c: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/libf2c/Makefile: $(ALL_GCC_C)
 all-target-libf2c: maybe-all-target-libiberty
-configure-target-libffi: $(ALL_GCC_C) 
-configure-target-libjava: $(ALL_GCC_C) maybe-configure-target-zlib maybe-configure-target-boehm-gc maybe-configure-target-qthreads maybe-configure-target-libffi
+$(TARGET_SUBDIR)/libffi/Makefile: $(ALL_GCC_C) 
+$(TARGET_SUBDIR)/libjava/Makefile: $(ALL_GCC_C) maybe-configure-target-zlib maybe-configure-target-boehm-gc maybe-configure-target-qthreads maybe-configure-target-libffi
 all-target-libjava: maybe-all-fastjar maybe-all-target-zlib maybe-all-target-boehm-gc maybe-all-target-qthreads maybe-all-target-libffi
-configure-target-libobjc: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/libobjc/Makefile: $(ALL_GCC_C)
 all-target-libobjc: maybe-all-target-libiberty
-configure-target-libstdc++-v3: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/libstdc++-v3/Makefile: $(ALL_GCC_C)
 all-target-libstdc++-v3: maybe-all-target-libiberty
-configure-target-zlib: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/zlib/Makefile: $(ALL_GCC_C)
 
 # Target modules in the 'src' repository.
-configure-target-examples: $(ALL_GCC_C)
-configure-target-libgloss: $(ALL_GCC)
+$(TARGET_SUBDIR)/examples/Makefile: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/libgloss/Makefile: $(ALL_GCC)
 all-target-libgloss: maybe-configure-target-newlib
-configure-target-libiberty: $(ALL_GCC_C)
-configure-target-libtermcap: $(ALL_GCC_C)
-configure-target-newlib: $(ALL_GCC)
-configure-target-winsup: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/libiberty/Makefile: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/libtermcap/Makefile: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/newlib/Makefile: $(ALL_GCC)
+$(TARGET_SUBDIR)/winsup/Makefile: $(ALL_GCC_C)
 all-target-winsup: maybe-all-target-libiberty maybe-all-target-libtermcap
 
 # Other target modules.  Warning, these are not well tested.
-configure-target-gperf: $(ALL_GCC_CXX)
+$(TARGET_SUBDIR)/gperf/Makefile: $(ALL_GCC_CXX)
 all-target-gperf: maybe-all-target-libiberty maybe-all-target-libstdc++-v3
-configure-target-qthreads: $(ALL_GCC_C)
+$(TARGET_SUBDIR)/qthreads/Makefile: $(ALL_GCC_C)
 
 # Dependencies of maybe-foo on foo.  These are used because, for example,
 # all-gcc only depends on all-gas if gas is present and being configured.

Follow-Ups:
- Re: (toplevel patch) Real make targets for configure-target-*
  - From: DJ Delorie
- Re: (toplevel patch) Real make targets for configure-target-*
  - From: Alexandre Oliva

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