-B$$r/$(HOST_SUBDIR)/prev-gcc/ -B$(build_tooldir)/bin/ -nostdinc++ \
-I$$r/prev-$(TARGET_SUBDIR)/libstdc++-v3/include/$(TARGET_SUBDIR) \
-I$$r/prev-$(TARGET_SUBDIR)/libstdc++-v3/include \
- -I$$r/$(srcdir)/libstdc++-v3/libsupc++ \
+ -I$$s/libstdc++-v3/libsupc++ \
-L$$r/prev-$(TARGET_SUBDIR)/libstdc++-v3/src/.libs"; export CXX; \
CXX_FOR_BUILD="$$CXX"; export CXX_FOR_BUILD; \
GNATBIND="$$r/$(HOST_SUBDIR)/prev-gcc/gnatbind"; export GNATBIND; \
GCC_FLAGS_TO_PASS = $(BASE_FLAGS_TO_PASS) $(EXTRA_HOST_FLAGS) $(EXTRA_GCC_FLAGS)
@if gcc
-BUILD_CONFIG = bootstrap-debug
+BUILD_CONFIG = @BUILD_CONFIG@
ifneq ($(BUILD_CONFIG),)
include $(foreach CONFIG, $(BUILD_CONFIG), $(srcdir)/config/$(CONFIG).mk)
endif