--build=$(GNU_HOST_NAME) \
--host=$(GNU_HOST_NAME) \
--target=$(REAL_GNU_TARGET_NAME) \
- --with-gmp=$(TOPDIR)/staging_dir/host \
- --with-mpfr=$(TOPDIR)/staging_dir/host \
- --with-mpc=$(TOPDIR)/staging_dir/host \
- --with-expat=$(TOPDIR)/staging_dir/host \
+ --with-gmp=$(STAGING_DIR_HOST) \
+ --with-mpfr=$(STAGING_DIR_HOST) \
+ --with-mpc=$(STAGING_DIR_HOST) \
+ --with-expat=$(STAGING_DIR_HOST) \
--disable-werror \
--without-uiout \
--enable-tui --disable-gdbtk --without-x \