ChangeLog:

PR target/37137
* Makefile.def (flags_to_pass): Remove redundant and incomplete
STAGE1_CFLAGS, STAGE2_CFLAGS, STAGE3_CFLAGS, and STAGE4_CFLAGS.
Add FLAGS_FOR_TARGET and BUILD_CONFIG.
(bootstrap_stage): Remove bootstrap-debug custom stages.  Turn
stage_configureflags, stage_cflags and stage_libcflags into
explicit Makefile macros.
* Makefile.tpl (HOST_EXPORTS, EXTRA_HOST_FLAGS): Pass GCJ and
GFORTRAN.
(POSTSTAGE1_HOST_EXPORTS): Add XGCC_FLAGS_FOR_TARGET and TFLAGS to
CC.  Set CC_FOR_BUILD from CC.
(BASE_TARGET_EXPORTS, RAW_CXX_TARGET_EXPORTS,
NORMAL_TARGET_EXPORTS): Move SYSROOT_CFLAGS_FOR_TARGET and
DEBUG_PREFIX_CFLAGS_FOR_TARGET from CFLAGS and CXXFLAGS to
XGCC_FLAGS_FOR_TARGET.  Add it along with TFLAGS to CC, CXX, GCJ,
and GFORTRAN.
(TFLAGS, STAGE_CFLAGS, STAGE_TFLAGS, STAGE_CONFIGURE_FLAGS): New.
(_LIBCFLAGS): Renamed to _TFLAGS.
(do-compare-debug, do-compare3-debug): Drop.
(CC, GCC_FOR_TARGET, CXX_FOR_TARGET, RAW_CXX_FOR_TARGET,
GCJ_FOR_TARGET, GFORTRAN_FOR_TARGET): Remove FLAGS_FOR_TARGET.
(FLAGS_FOR_TARGET, SYSROOT_CFLAGS_FOR_TARGET,
DEBUG_PREFIX_CFLAGS_FOR_TARGET): Move down.
(XGCC_FLAGS_FOR_TARGET): New.
(BASE_FLAGS_TO_PASS): Pass STAGEid_CFLAGS, STAGEid_TFLAGS and TFLAGS.
(EXTRA_HOST_FLAGS): Pass GCJ and GFORTRAN.
(POSTSTAGE1_FLAGS_TO_PASS): Move SYSROOT_CFLAGS_FOR_TARGET and
DEBUG_PREFIX_CFLAGS_FOR_TARGET from CFLAGS, CXXFLAGS, LIBCFLAGS,
LIBCXXFLAGS to XGCC_FLAGS_FOR_TARGET.    Add it along with TFLAGS
to CC, CXX, GCJ, and GFORTRAN.  Pass XGCC_FLAGS_FOR_TARGET and
TFLAGS.
(BUILD_CONFIG): Include if requested.
(all): Set TFLAGS on bootstrap.
(configure-stageid-prefixmodule): Pass TFLAGS, adjust FLAGS.
(all-stageid-prefixmodule): Likewise.
(do-clean, distclean-stageid): Set TFLAGS.
(restrap): Fix whitespace.
* Makefile.in: Rebuilt.
config/ChangeLog:
* multi.m4: Save CXX, GFORTRAN and GCJ in config.status.
* mt-gnu (CXXFLAGS_FOR_TARGET): Adjust.
* bootstrap-O1.mk: New.
* bootstrap-O3.mk: New.
* bootstrap-debug.mk: New.

1 files changed, 8 insertions, 51 deletions

diff --git a/Makefile.def b/Makefile.def
index c6a9291358c..30d4d17232d 100644
--- a/Makefile.def
+++ b/Makefile.def
@@ -255,12 +255,8 @@ flags_to_pass = { flag= CXXFLAGS ; };
 flags_to_pass = { flag= LDFLAGS ; };
 flags_to_pass = { flag= LIBCFLAGS ; };
 flags_to_pass = { flag= LIBCXXFLAGS ; };
-flags_to_pass = { flag= STAGE1_CFLAGS ; };
 flags_to_pass = { flag= STAGE1_CHECKING ; };
 flags_to_pass = { flag= STAGE1_LANGUAGES ; };
-flags_to_pass = { flag= STAGE2_CFLAGS ; };
-flags_to_pass = { flag= STAGE3_CFLAGS ; };
-flags_to_pass = { flag= STAGE4_CFLAGS ; };
 flags_to_pass = { flag= GNATBIND ; };
 flags_to_pass = { flag= GNATMAKE ; };
 
@@ -273,6 +269,7 @@ flags_to_pass = { flag= CPPFLAGS_FOR_TARGET ; };
 flags_to_pass = { flag= CXX_FOR_TARGET ; };
 flags_to_pass = { flag= CXXFLAGS_FOR_TARGET ; };
 flags_to_pass = { flag= DLLTOOL_FOR_TARGET ; };
+flags_to_pass = { flag= FLAGS_FOR_TARGET ; };
 flags_to_pass = { flag= GCJ_FOR_TARGET ; };
 flags_to_pass = { flag= GFORTRAN_FOR_TARGET ; };
 flags_to_pass = { flag= LD_FOR_TARGET ; };
@@ -288,6 +285,7 @@ flags_to_pass = { flag= WINDRES_FOR_TARGET ; };
 flags_to_pass = { flag= WINDMC_FOR_TARGET ; };
 
 // Miscellaneous
+flags_to_pass = { flag= BUILD_CONFIG ; };
 flags_to_pass = { flag= LANGUAGES ; optional=true ; };
 flags_to_pass = { flag= LEAN ; };
 
@@ -555,62 +553,21 @@ languages = { language=objc;	gcc-check-target=check-objc;
 languages = { language=obj-c++;	gcc-check-target=check-obj-c++; };
 
 // Toplevel bootstrap
-bootstrap_stage = {
-	id=1 ;
-
-	// * We force-disable intermodule optimizations, even if
-	//   --enable-intermodule was passed, since the installed compiler
-	//   probably can't handle them.  Luckily, autoconf always respects
-	//   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.
-	stage_configure_flags='--disable-intermodule $(STAGE1_CHECKING) \
-	  --disable-coverage --enable-languages="$(STAGE1_LANGUAGES)"' ;
-	stage_cflags='$(STAGE1_CFLAGS)' ;
-	stage_libcflags='$(STAGE1_LIBCFLAGS)' ; };
+bootstrap_stage = { id=1 ; };
 bootstrap_stage = {
 	id=2 ; prev=1 ;
-	bootstrap_target=bootstrap2 ;
-	stage_configure_flags="@stage2_werror_flag@" ;
-	stage_cflags="$(STAGE2_CFLAGS)" ;
-	stage_libcflags="$(STAGE2_LIBCFLAGS)" ; };
-bootstrap_stage = {
-	id=b2g0 ; prev=1 ;
-	bootstrap_target=bootstrap2-debug ;
-	stage_configure_flags="@stage2_werror_flag@" ;
-	stage_cflags="$(STAGE2_CFLAGS) -g0" ;
-	stage_libcflags="$(STAGE2_LIBCFLAGS) -g0" ; };
+	bootstrap_target=bootstrap2 ; };
 bootstrap_stage = {
 	id=3 ; prev=2 ; lean=1 ;
 	compare_target=compare ;
 	bootstrap_target=bootstrap ;
-	cleanstrap_target=cleanstrap ;
-	stage_configure_flags="@stage2_werror_flag@" ;
-	stage_cflags="$(STAGE3_CFLAGS)" ;
-	stage_libcflags="$(STAGE3_LIBCFLAGS)" ; };
-bootstrap_stage = {
-	id=b3g2 ; prev=b2g0 ; lean=1 ;
-	compare_target=compare-debug ;
-	bootstrap_target=bootstrap-debug ;
-	cleanstrap_target=cleanstrap-debug ;
-	stage_configure_flags="@stage2_werror_flag@" ;
-	stage_cflags="$(STAGE3_CFLAGS) -g2" ;
-	stage_libcflags="$(STAGE3_LIBCFLAGS) -g2" ; };
+	cleanstrap_target=cleanstrap ; };
 bootstrap_stage = {
 	id=4 ; prev=3 ; lean=2 ;
 	compare_target=compare3 ;
-	bootstrap_target=bootstrap4 ;
-	stage_configure_flags="@stage2_werror_flag@" ;
-	stage_cflags="$(STAGE4_CFLAGS)" ;
-	stage_libcflags="$(STAGE4_CFLAGS)" ; };
+	bootstrap_target=bootstrap4 ; };
 bootstrap_stage = {
-	id=profile ; prev=1 ;
-	stage_configure_flags="@stage2_werror_flag@" ;
-	stage_cflags='$(STAGE2_CFLAGS) -fprofile-generate' ;
-	stage_libcflags='$(STAGE2_LIBCFLAGS)' ; };
+	id=profile ; prev=1 ; };
 bootstrap_stage = {
 	id=feedback ; prev=profile ;
-	bootstrap_target=profiledbootstrap ;
-	stage_configure_flags="@stage2_werror_flag@" ;
-	stage_cflags='$(STAGE3_CFLAGS) -fprofile-use' ;
-	stage_libcflags='$(STAGE3_LIBCFLAGS) -fprofile-use' ; };
+	bootstrap_target=profiledbootstrap ; };