LGTM, with nits.
https://codereview.appspot.com/577700045/diff/547810068/flower/GNUmakefile File flower/GNUmakefile (right): https://codereview.appspot.com/577700045/diff/547810068/flower/GNUmakefile#newcode17 flower/GNUmakefile:17: TEST_LOADLIBES = $(LIBRARY) $(CXXABI_LIBS) I suggest s/TEST_LOADLIBES/TEST_LOADLIBS/. https://codereview.appspot.com/577700045/diff/547810068/flower/GNUmakefile#newcode33 flower/GNUmakefile:33: AR=ar s/AR=ar/AR = ar/ for consistency. Irrespective of that I wonder why setting `AR` is necessary at all since the configure script sets this variable (via the `STEPMAKE_LIB` macro) – it seems to make that it won't work with cross-compiling. https://codereview.appspot.com/577700045/
