diff --git a/ChangeLog b/ChangeLog
index f7418bcdbf9..b0a546b4024 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2007-12-13  Richard Sandiford  <rsandifo@nildram.co.uk>
+
+	* Makefile.tpl (CFLAGS_FOR_TARGET): Add -g.
+	(CXXFLAGS_FOR_TARGET): Add -O2 -g.
+	* Makefile.in: Regenerate.
+
 2007-12-10  Mark Heffernan <meheff@google.com>
 
 	* MAINTAINERS (Write After Approval): Add myself and alphabetize two
diff --git a/Makefile.in b/Makefile.in
index 21b83628ae2..32c5403062f 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -373,15 +373,17 @@ COMPILER_AS_FOR_TARGET=@COMPILER_AS_FOR_TARGET@
 COMPILER_LD_FOR_TARGET=@COMPILER_LD_FOR_TARGET@
 COMPILER_NM_FOR_TARGET=@COMPILER_NM_FOR_TARGET@
 
-# During gcc bootstrap, if we use some random cc for stage1 then
-# CFLAGS will be just -g.  We want to ensure that TARGET libraries
-# (which we know are built with gcc) are built with optimizations so
-# prepend -O2 when setting CFLAGS_FOR_TARGET.
-CFLAGS_FOR_TARGET = -O2 $(CFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) \
+# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
+# might be empty or "-g".  We don't require a C++ compiler, so CXXFLAGS
+# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
+# We want to ensure that TARGET libraries (which we know are built with
+# gcc) are built with "-O2 -g", so prepend those options when setting
+# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
+CFLAGS_FOR_TARGET = -O2 -g $(CFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) \
 	$(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
 SYSROOT_CFLAGS_FOR_TARGET = @SYSROOT_CFLAGS_FOR_TARGET@
 DEBUG_PREFIX_CFLAGS_FOR_TARGET = @DEBUG_PREFIX_CFLAGS_FOR_TARGET@
-CXXFLAGS_FOR_TARGET = $(CXXFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) \
+CXXFLAGS_FOR_TARGET = -O2 -g $(CXXFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) \
 	$(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
 LIBCFLAGS_FOR_TARGET = $(CFLAGS_FOR_TARGET)
 LIBCXXFLAGS_FOR_TARGET = $(CXXFLAGS_FOR_TARGET) -fno-implicit-templates
diff --git a/Makefile.tpl b/Makefile.tpl
index 9d23058aa30..12ad2a1ff07 100644
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -376,15 +376,17 @@ COMPILER_AS_FOR_TARGET=@COMPILER_AS_FOR_TARGET@
 COMPILER_LD_FOR_TARGET=@COMPILER_LD_FOR_TARGET@
 COMPILER_NM_FOR_TARGET=@COMPILER_NM_FOR_TARGET@
 
-# During gcc bootstrap, if we use some random cc for stage1 then
-# CFLAGS will be just -g.  We want to ensure that TARGET libraries
-# (which we know are built with gcc) are built with optimizations so
-# prepend -O2 when setting CFLAGS_FOR_TARGET.
-CFLAGS_FOR_TARGET = -O2 $(CFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) \
+# During gcc bootstrap, if we use some random cc for stage1 then CFLAGS
+# might be empty or "-g".  We don't require a C++ compiler, so CXXFLAGS
+# might also be empty (or "-g", if a non-GCC C++ compiler is in the path).
+# We want to ensure that TARGET libraries (which we know are built with
+# gcc) are built with "-O2 -g", so prepend those options when setting
+# CFLAGS_FOR_TARGET and CXXFLAGS_FOR_TARGET.
+CFLAGS_FOR_TARGET = -O2 -g $(CFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) \
 	$(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
 SYSROOT_CFLAGS_FOR_TARGET = @SYSROOT_CFLAGS_FOR_TARGET@
 DEBUG_PREFIX_CFLAGS_FOR_TARGET = @DEBUG_PREFIX_CFLAGS_FOR_TARGET@
-CXXFLAGS_FOR_TARGET = $(CXXFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) \
+CXXFLAGS_FOR_TARGET = -O2 -g $(CXXFLAGS) $(SYSROOT_CFLAGS_FOR_TARGET) \
 	$(DEBUG_PREFIX_CFLAGS_FOR_TARGET)
 LIBCFLAGS_FOR_TARGET = $(CFLAGS_FOR_TARGET)
 LIBCXXFLAGS_FOR_TARGET = $(CXXFLAGS_FOR_TARGET) -fno-implicit-templates