1diff --git a/Makefile.in b/Makefile.in
2index 8545b60..1fab64d 100644
3--- a/Makefile.in
4+++ b/Makefile.in
5@@ -231,6 +231,7 @@ BASE_TARGET_EXPORTS = \
6 CC="$(CC_FOR_TARGET)"; export CC; \
7 CFLAGS="$(CFLAGS_FOR_TARGET) $(SYSROOT_CFLAGS_FOR_TARGET) $(DEBUG_PREFIX_CFLAGS_FOR_TARGET)"; export CFLAGS; \
8 CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
9+ CPP="$(CC_FOR_TARGET) -E"; export CPP; \
10 CPPFLAGS="$(CPPFLAGS_FOR_TARGET)"; export CPPFLAGS; \
11 CXXFLAGS="$(CXXFLAGS_FOR_TARGET) $(SYSROOT_CFLAGS_FOR_TARGET) $(DEBUG_PREFIX_CFLAGS_FOR_TARGET)"; export CXXFLAGS; \
12 GCJ="$(GCJ_FOR_TARGET)"; export GCJ; \