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platform_build
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Add a dummy build recipe for the proto generated header files 

This fixed issue that gnumake skip updating the cpp file that includes
the generated header file when the .proto file gets updated.
For example:
Say a.cc includes b.pb.h, since b.pb.h is just byproduct of the rule
that generates b.pb.cc, and though we have dependency "b.pb.h :
b.pb.cc", but we don't have build recipe for that rule.
Gmake stupidly thinks that b.pb.h must not be updated in that case so
it skips all targets that depends on b.pb.h!
With the dumy build recipe, gmake now doesn't skip the depedent targets.

Bug: 13009798
Change-Id: I39adc09b7656bdd023f578fb8933667944fd974c
This commit is contained in:
Ying Wang 2014-02-13 18:04:00 -08:00
parent 59dc65a28a
commit 8c556594bf
1 changed files with 2 additions and 0 deletions
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2
core/binary.mk
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@ -411,6 +411,8 @@ $(proto_generated_cc_sources): $(proto_generated_cc_sources_dir)/%.pb.cc: %.prot
proto_generated_headers := $(patsubst %.pb.cc,%.pb.h, $(proto_generated_cc_sources))
$(proto_generated_headers): $(proto_generated_cc_sources_dir)/%.pb.h: $(proto_generated_cc_sources_dir)/%.pb.cc
# This is just a dummy rule to make sure gmake doesn't skip updating the dependents.
@echo "Updated header file $<."
$(proto_generated_objects): PRIVATE_ARM_MODE := $(normal_objects_mode)
$(proto_generated_objects): PRIVATE_ARM_CFLAGS := $(normal_objects_cflags)