Implement PEP 393.
diff --git a/Makefile.pre.in b/Makefile.pre.in
index d2546eb..6123946 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -629,7 +629,6 @@
$(srcdir)/Objects/stringlib/partition.h \
$(srcdir)/Objects/stringlib/split.h \
$(srcdir)/Objects/stringlib/stringdefs.h \
- $(srcdir)/Objects/stringlib/string_format.h \
$(srcdir)/Objects/stringlib/transmogrify.h \
$(srcdir)/Objects/stringlib/unicodedefs.h \
$(srcdir)/Objects/stringlib/localeutil.h
@@ -639,7 +638,7 @@
Objects/bytearrayobject.o: $(srcdir)/Objects/bytearrayobject.c $(BYTESTR_DEPS)
Objects/unicodeobject.o: $(srcdir)/Objects/unicodeobject.c \
- $(BYTESTR_DEPS)
+ $(BYTESTR_DEPS) $(srcdir)/Objects/stringlib/unicode_format.h
Objects/dictobject.o: $(srcdir)/Objects/stringlib/eq.h
Objects/setobject.o: $(srcdir)/Objects/stringlib/eq.h
@@ -650,8 +649,7 @@
Python/ceval.o: $(OPCODETARGETS_H) Python/ceval_gil.h
Python/formatter_unicode.o: $(srcdir)/Python/formatter_unicode.c \
- $(BYTESTR_DEPS) \
- $(srcdir)/Objects/stringlib/formatter.h
+ $(BYTESTR_DEPS)
Objects/typeobject.o: $(srcdir)/Objects/typeslots.inc
$(srcdir)/Objects/typeslots.inc: $(srcdir)/Include/typeslots.h $(srcdir)/Objects/typeslots.py