./:

	* configure.ac: Add --enable-build-poststage1-with-cxx.  If set,
	make C++ a boot_language.  Set and substitute
	POSTSTAGE1_CONFIGURE_FLAGS.
	* Makefile.tpl (POSTSTAGE1_CONFIGURE_FLAGS): New variable.
	(STAGE[+id+]_CONFIGURE_FLAGS): Add $(POSTSTAGE1_CONFIGURE_FLAGS).
	* configure, Makefile.in: Rebuild.
gcc/:
	* doc/install.texi (Configuration): Document
	--enable-build-poststage1-with-cxx.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@176480 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 28 insertions, 6 deletions

diff --git a/Makefile.in b/Makefile.in
index 3b8e6c74859..6df70593a26 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -415,6 +415,7 @@ TFLAGS =
 STAGE_CFLAGS = $(BOOT_CFLAGS)
 STAGE_TFLAGS = $(TFLAGS)
 STAGE_CONFIGURE_FLAGS=@stage2_werror_flag@
+POSTSTAGE1_CONFIGURE_FLAGS = @POSTSTAGE1_CONFIGURE_FLAGS@
 
 
 # Defaults for stage 1; some are overridden below.
@@ -425,7 +426,10 @@ STAGE1_CXXFLAGS = $(CXXFLAGS)
 STAGE1_CXXFLAGS = $(STAGE1_CFLAGS)
 @endif target-libstdc++-v3-bootstrap
 STAGE1_TFLAGS = $(STAGE_TFLAGS)
-STAGE1_CONFIGURE_FLAGS = $(STAGE_CONFIGURE_FLAGS)
+# STAGE1_CONFIGURE_FLAGS overridden below, so we can use
+# POSTSTAGE1_CONFIGURE_FLAGS here.
+STAGE1_CONFIGURE_FLAGS = \
+	$(STAGE_CONFIGURE_FLAGS) $(POSTSTAGE1_CONFIGURE_FLAGS)
 
 # Defaults for stage 2; some are overridden below.
 STAGE2_CFLAGS = $(STAGE_CFLAGS)
@@ -435,7 +439,10 @@ STAGE2_CXXFLAGS = $(CXXFLAGS)
 STAGE2_CXXFLAGS = $(STAGE2_CFLAGS)
 @endif target-libstdc++-v3-bootstrap
 STAGE2_TFLAGS = $(STAGE_TFLAGS)
-STAGE2_CONFIGURE_FLAGS = $(STAGE_CONFIGURE_FLAGS)
+# STAGE1_CONFIGURE_FLAGS overridden below, so we can use
+# POSTSTAGE1_CONFIGURE_FLAGS here.
+STAGE2_CONFIGURE_FLAGS = \
+	$(STAGE_CONFIGURE_FLAGS) $(POSTSTAGE1_CONFIGURE_FLAGS)
 
 # Defaults for stage 3; some are overridden below.
 STAGE3_CFLAGS = $(STAGE_CFLAGS)
@@ -445,7 +452,10 @@ STAGE3_CXXFLAGS = $(CXXFLAGS)
 STAGE3_CXXFLAGS = $(STAGE3_CFLAGS)
 @endif target-libstdc++-v3-bootstrap
 STAGE3_TFLAGS = $(STAGE_TFLAGS)
-STAGE3_CONFIGURE_FLAGS = $(STAGE_CONFIGURE_FLAGS)
+# STAGE1_CONFIGURE_FLAGS overridden below, so we can use
+# POSTSTAGE1_CONFIGURE_FLAGS here.
+STAGE3_CONFIGURE_FLAGS = \
+	$(STAGE_CONFIGURE_FLAGS) $(POSTSTAGE1_CONFIGURE_FLAGS)
 
 # Defaults for stage 4; some are overridden below.
 STAGE4_CFLAGS = $(STAGE_CFLAGS)
@@ -455,7 +465,10 @@ STAGE4_CXXFLAGS = $(CXXFLAGS)
 STAGE4_CXXFLAGS = $(STAGE4_CFLAGS)
 @endif target-libstdc++-v3-bootstrap
 STAGE4_TFLAGS = $(STAGE_TFLAGS)
-STAGE4_CONFIGURE_FLAGS = $(STAGE_CONFIGURE_FLAGS)
+# STAGE1_CONFIGURE_FLAGS overridden below, so we can use
+# POSTSTAGE1_CONFIGURE_FLAGS here.
+STAGE4_CONFIGURE_FLAGS = \
+	$(STAGE_CONFIGURE_FLAGS) $(POSTSTAGE1_CONFIGURE_FLAGS)
 
 # Defaults for stage profile; some are overridden below.
 STAGEprofile_CFLAGS = $(STAGE_CFLAGS)
@@ -465,7 +478,10 @@ STAGEprofile_CXXFLAGS = $(CXXFLAGS)
 STAGEprofile_CXXFLAGS = $(STAGEprofile_CFLAGS)
 @endif target-libstdc++-v3-bootstrap
 STAGEprofile_TFLAGS = $(STAGE_TFLAGS)
-STAGEprofile_CONFIGURE_FLAGS = $(STAGE_CONFIGURE_FLAGS)
+# STAGE1_CONFIGURE_FLAGS overridden below, so we can use
+# POSTSTAGE1_CONFIGURE_FLAGS here.
+STAGEprofile_CONFIGURE_FLAGS = \
+	$(STAGE_CONFIGURE_FLAGS) $(POSTSTAGE1_CONFIGURE_FLAGS)
 
 # Defaults for stage feedback; some are overridden below.
 STAGEfeedback_CFLAGS = $(STAGE_CFLAGS)
@@ -475,7 +491,10 @@ STAGEfeedback_CXXFLAGS = $(CXXFLAGS)
 STAGEfeedback_CXXFLAGS = $(STAGEfeedback_CFLAGS)
 @endif target-libstdc++-v3-bootstrap
 STAGEfeedback_TFLAGS = $(STAGE_TFLAGS)
-STAGEfeedback_CONFIGURE_FLAGS = $(STAGE_CONFIGURE_FLAGS)
+# STAGE1_CONFIGURE_FLAGS overridden below, so we can use
+# POSTSTAGE1_CONFIGURE_FLAGS here.
+STAGEfeedback_CONFIGURE_FLAGS = \
+	$(STAGE_CONFIGURE_FLAGS) $(POSTSTAGE1_CONFIGURE_FLAGS)
 
 
 # Only build the C compiler for stage1, because that is the only one that
@@ -493,6 +512,9 @@ STAGE1_LANGUAGES = @stage1_languages@
 #   the last argument when conflicting --enable arguments are passed.
 # * Likewise, we force-disable coverage flags, since the installed
 #   compiler probably has never heard of them.
+# * Don't remove this, because above we added
+#   POSTSTAGE1_CONFIGURE_FLAGS to STAGE_CONFIGURE_FLAGS, which
+#   we don't want for STAGE1_CONFIGURE_FLAGS.
 STAGE1_CONFIGURE_FLAGS = --disable-intermodule $(STAGE1_CHECKING) \
 	  --disable-coverage --enable-languages="$(STAGE1_LANGUAGES)"