diff --git a/ChangeLog b/ChangeLog
index 5b92284821..6b1ce8f228 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2005-01-13  Kelley Cook  <kcook@gcc.gnu.org>
+
+	PR bootstrap/18222
+	* Makefile.def: Pass CPPFLAGS_FOR_TARGET.
+	* Makefile.tpl: Define target CPPFLAGS on CPPFLAGS_FOR_TARGET.
+	* Makefile.in: Regenerate.
+
 2005-01-03  Paolo Bonzini  <bonzini@gnu.org>
 
 	Revert 2004-12-28 Makefile changes, a better fix will be
diff --git a/Makefile.def b/Makefile.def
index 5a7f319765..c6d39f4fca 100644
--- a/Makefile.def
+++ b/Makefile.def
@@ -218,6 +218,7 @@ flags_to_pass = { flag= AR_FOR_TARGET ; };
 flags_to_pass = { flag= AS_FOR_TARGET ; };
 flags_to_pass = { flag= CC_FOR_TARGET ; };
 flags_to_pass = { flag= CFLAGS_FOR_TARGET ; };
+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 ; };
diff --git a/Makefile.in b/Makefile.in
index 45c405930a..dff7568e3e 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -198,7 +198,7 @@ BASE_TARGET_EXPORTS = \
 	CC="$(CC_FOR_TARGET)"; export CC; \
 	CFLAGS="$(CFLAGS_FOR_TARGET)"; export CFLAGS; \
 	CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
-	CPPFLAGS="$(CFLAGS_FOR_TARGET)"; export CPPFLAGS; \
+	CPPFLAGS="$(CPPFLAGS_FOR_TARGET)"; export CPPFLAGS; \
 	CXXFLAGS="$(CXXFLAGS_FOR_TARGET)"; export CXXFLAGS; \
 	GCJ="$(GCJ_FOR_TARGET)"; export GCJ; \
 	GFORTRAN="$(GFORTRAN_FOR_TARGET)"; export GFORTRAN; \
@@ -552,6 +552,7 @@ BASE_FLAGS_TO_PASS = \
 	"AS_FOR_TARGET=$(AS_FOR_TARGET)" \
 	"CC_FOR_TARGET=$(CC_FOR_TARGET)" \
 	"CFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET)" \
+	"CPPFLAGS_FOR_TARGET=$(CPPFLAGS_FOR_TARGET)" \
 	"CXX_FOR_TARGET=$(CXX_FOR_TARGET)" \
 	"CXXFLAGS_FOR_TARGET=$(CXXFLAGS_FOR_TARGET)" \
 	"DLLTOOL_FOR_TARGET=$(DLLTOOL_FOR_TARGET)" \
diff --git a/Makefile.tpl b/Makefile.tpl
index 44c15fd53c..597cb80e88 100644
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -201,7 +201,7 @@ BASE_TARGET_EXPORTS = \
 	CC="$(CC_FOR_TARGET)"; export CC; \
 	CFLAGS="$(CFLAGS_FOR_TARGET)"; export CFLAGS; \
 	CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
-	CPPFLAGS="$(CFLAGS_FOR_TARGET)"; export CPPFLAGS; \
+	CPPFLAGS="$(CPPFLAGS_FOR_TARGET)"; export CPPFLAGS; \
 	CXXFLAGS="$(CXXFLAGS_FOR_TARGET)"; export CXXFLAGS; \
 	GCJ="$(GCJ_FOR_TARGET)"; export GCJ; \
 	GFORTRAN="$(GFORTRAN_FOR_TARGET)"; export GFORTRAN; \