gcc/ada/gcc-interface/Make-lang.in | 9 +++++----
 gcc/ada/gcc-interface/Makefile.in  | 2 +-
 gnattools/Makefile.in              | 6 ++++++
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/gcc/ada/gcc-interface/Make-lang.in b/gcc/ada/gcc-interface/Make-lang.in
index cd3676f..f7aafc0 100644
--- a/gcc/ada/gcc-interface/Make-lang.in
+++ b/gcc/ada/gcc-interface/Make-lang.in
@@ -178,6 +178,10 @@ else
   GNATLINK_FOR_HOST=$(host)-gnatlink
   GNATLS_FOR_HOST=$(host)-gnatls
 
+  ifneq ($(findstring ada,$(LANGUAGES)),)
+    RTS_DIR:=$(strip $(subst \,/,$(shell $(GNATLS_FOR_HOST) -v | grep adalib )))
+  endif
+
   ifeq ($(host), $(target))
     # This is a cross native. All the sources are taken from the currently
     # built runtime.
@@ -193,9 +197,6 @@ else
   else
     # This is a canadian cross. We should use a toolchain running on the
     # build platform and targeting the host platform.
-    ifneq ($(findstring ada,$(LANGUAGES)),)
-      RTS_DIR:=$(strip $(subst \,/,$(shell $(GNATLS_FOR_HOST) -v | grep adalib )))
-    endif
     ADA_TOOLS_FLAGS_TO_PASS=\
         CC="$(CC)" \
         CXX="$(CXX)" \
@@ -658,7 +659,7 @@ ada.tags: force
 ada/doctools/xgnatugn$(build_exeext): ada/xgnatugn.adb
 	-$(MKDIR) ada/doctools
 	$(CP) $^ ada/doctools
-	cd ada/doctools && $(GNATMAKE) -q xgnatugn
+	cd ada/doctools && gnatmake -q xgnatugn
 
 # Note that doc/gnat_ugn.texi and doc/projects.texi do not depend on
 # xgnatugn being built so we can distribute a pregenerated doc/gnat_ugn.info
diff --git a/gcc/ada/gcc-interface/Makefile.in b/gcc/ada/gcc-interface/Makefile.in
index 885a5ed..6b675f2 100644
--- a/gcc/ada/gcc-interface/Makefile.in
+++ b/gcc/ada/gcc-interface/Makefile.in
@@ -2415,7 +2415,7 @@ TOOLS_FLAGS_TO_PASS=		\
 	"GNATLINK=$(GNATLINK)"	\
 	"GNATBIND=$(GNATBIND)"
 
-GCC_LINK=$(CXX) $(GCC_LINK_FLAGS) $(ADA_INCLUDES)
+GCC_LINK=$(CXX) $(GCC_LINK_FLAGS) $(ADA_INCLUDES) $(LDFLAGS)
 
 # Build directory for the tools. Let's copy the target-dependent
 # sources using the same mechanism as for gnatlib. The other sources are
diff --git a/gnattools/Makefile.in b/gnattools/Makefile.in
index fdd6491..118847c 100644
--- a/gnattools/Makefile.in
+++ b/gnattools/Makefile.in
@@ -24,6 +24,7 @@ srcdir = @srcdir@
 libdir = @libdir@
 build = @build@
 target = @target@
+host = @host@
 prefix = @prefix@
 INSTALL = @INSTALL@
 INSTALL_DATA = @INSTALL_DATA@
@@ -92,6 +93,7 @@ TOOLS_FLAGS_TO_PASS_RE= \
 	"CC=../../xgcc -B../../" \
 	"CXX=../../xg++ -B../../ $(CXX_LFLAGS)" \
 	"CFLAGS=$(CFLAGS)" \
+	"LDFLAGS=$(LDFLAGS)" \
 	"ADAFLAGS=$(ADAFLAGS)" \
 	"ADA_CFLAGS=$(ADA_CFLAGS)" \
 	"INCLUDES=$(INCLUDES_FOR_SUBDIR)" \
@@ -192,7 +194,11 @@ regnattools: $(GCC_DIR)/stamp-gnatlib-rts
 # put the host RTS dir first in the PATH to hide the default runtime
 # files that are among the sources
 # FIXME: This should be done in configure.
+ifeq ($(host), $(build))
 RTS_DIR:=$(strip $(subst \,/,$(shell gnatls -v | grep adalib )))
+else
+RTS_DIR:=$(strip $(subst \,/,$(shell $(host)-gnatls -v | grep adalib )))
+endif
 gnattools-cross: $(GCC_DIR)/stamp-tools
 	# gnattools1-re
 	$(MAKE) -C $(GCC_DIR)/ada/tools -f ../Makefile \