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Generate the C++ dependencies at configure-time

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We use the -MG preprocessor option to the compiler to ask it to check
all #includes and tell us what's missing. Then our own rules will
generate the moc and uic files that the .cpp #include.

Unfortunately, our rules make uic generate output in qt-ui/ for
qt-ui/*.ui, while the compiler generates rules for no directory. We
need to fake it by forcing the generation.

Signed-off-by: Thiago Macieira <thiago@macieira.org>
This commit is contained in:
Thiago Macieira 2013-04-13 11:30:05 -07:00
parent a0b523a5af
commit ce3f073d42
1 changed files with 15 additions and 11 deletions
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26
Rules.mk
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@ -35,7 +35,7 @@ all: $(NAME)
$(NAME): gen_version_file $(ALL_OBJS) $(MSGOBJS) $(INFOPLIST)
$(CXX) $(LDFLAGS) -o $(NAME) $(ALL_OBJS) $(LIBS)
gen_version_file:
gen_version_file $(VERSION_FILE):
ifneq ($(STORED_VERSION_STRING),$(VERSION_STRING))
$(info updating $(VERSION_FILE) to $(VERSION_STRING))
@echo \#define VERSION_STRING \"$(VERSION_STRING)\" >$(VERSION_FILE)
@ -142,13 +142,6 @@ MOCFLAGS = $(filter -I%, $(CXXFLAGS) $(EXTRA_FLAGS)) $(filter -D%, $(CXXFLAGS) $
@mkdir -p .dep .dep/qt-ui
@$(CXX) $(CXXFLAGS) $(EXTRA_FLAGS) -MD -MF .dep/$@.dep -c -o $@ $<
# Detect which files require the moc or uic tools to be run
CPP_NEEDING_MOC = $(shell grep -l -s '^\#include \".*\.moc\"' $(OBJS:.o=.cpp))
OBJS_NEEDING_MOC += $(CPP_NEEDING_MOC:.cpp=.o)
CPP_NEEDING_UIC = $(shell grep -l -s '^\#include \"ui_.*\.h\"' $(OBJS:.o=.cpp))
OBJS_NEEDING_UIC += $(CPP_NEEDING_UIC:.cpp=.o)
# This rule is for running the moc on QObject subclasses defined in the .h
# files.
%.moc.cpp: %.h
@ -167,8 +160,12 @@ ui_%.h: %.ui
@echo ' UIC' $<
@$(UIC) $< -o $@
$(OBJS_NEEDING_MOC): %.o: %.moc
$(OBJS_NEEDING_UIC): qt-ui/%.o: qt-ui/ui_%.h
# This forces the creation of ui headers with the wrong path
# This is required because the -MG option to the compiler outputs
# unknown files with no path prefix
ui_%.h: qt-ui/%.ui
@echo ' UIC' $<
@$(UIC) $< -o qt-ui/$@
share/locale/%.UTF-8/LC_MESSAGES/subsurface.mo: po/%.po po/%.aliases
mkdir -p $(dir $@)
@ -198,10 +195,17 @@ doc:
clean:
rm -f $(ALL_OBJS) *~ $(NAME) $(NAME).exe po/*~ po/subsurface-new.pot \
$(VERSION_FILE) qt-ui/*.moc qt-ui/ui_*.h
rm -rf share .dep
rm -rf share
confclean: clean
rm -f $(CONFIGFILE)
rm -rf .dep
ifneq ($(CONFIGURED)$(CONFIGURING),)
.dep/%.o.dep: %.cpp
@mkdir -p .dep .dep/qt-ui
@$(CXX) $(CXXFLAGS) $(EXTRA_FLAGS) -MM -MG -MF $@ -MT $(<:.cpp=.o) -c $<
endif
DEPS = $(addprefix .dep/,$(C_SOURCES:.c=.o.dep) $(CXX_SOURCES:.cpp=.o.dep))
-include $(DEPS)