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docs/develop/qstr.rst: Add documentation for string interning.

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This commit is contained in:
Jim Mussared
2019-09-26 20:25:39 +10:00
committed by Damien George
parent 25a9bccdee
commit 4ddd46e6cf
4 changed files with 115 additions and 0 deletions
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py/mkrules.mk
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@@ -70,6 +70,7 @@ $(OBJ): | $(HEADER_BUILD)/qstrdefs.generated.h $(HEADER_BUILD)/mpversion.h
# - if anything in QSTR_GLOBAL_DEPENDENCIES is newer, then process all source files ($^)
# - else, if list of newer prerequisites ($?) is not empty, then process just these ($?)
# - else, process all source files ($^) [this covers "make -B" which can set $? to empty]
# See more information about this process in docs/develop/qstr.rst.
$(HEADER_BUILD)/qstr.i.last: $(SRC_QSTR) $(QSTR_GLOBAL_DEPENDENCIES) | $(QSTR_GLOBAL_REQUIREMENTS)
$(ECHO) "GEN $@"
$(Q)$(CPP) $(QSTR_GEN_EXTRA_CFLAGS) $(CFLAGS) $(if $(filter $?,$(QSTR_GLOBAL_DEPENDENCIES)),$^,$(if $?,$?,$^)) >$(HEADER_BUILD)/qstr.i.last