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Automatic dependency tracking for C++ (GCC only)

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This commit is contained in:
Peter Eisentraut 2000-10-29 16:13:28 +00:00
parent 86f0812520
commit 30402ce74a
1 changed files with 30 additions and 10 deletions
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40
src/Makefile.global.in
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@ -1,5 +1,5 @@
# -*-makefile-*-
# $Header: /cvsroot/pgsql/src/Makefile.global.in,v 1.106 2000/10/27 23:59:39 petere Exp $
# $Header: /cvsroot/pgsql/src/Makefile.global.in,v 1.107 2000/10/29 16:13:28 petere Exp $
#------------------------------------------------------------------------------
# All PostgreSQL makefiles include this file and use the variables it sets,
@ -332,28 +332,48 @@ $(top_builddir)/config.status: $(top_srcdir)/configure
# that make will update all files that depended on the now removed
# file.)
COMPILE.c = $(CC) -c $(CPPFLAGS) $(CFLAGS)
autodepend = @autodepend@
ifeq ($(autodepend), yes)
ifndef COMPILE.c
COMPILE.c = $(CC) $(CFLAGS) $(CPPFLAGS) -c
endif
ifndef COMPILE.cc
COMPILE.cc = $(CXX) $(CXXFLAGS) $(CPPFLAGS) -c
endif
DEPDIR = .deps
df = $(DEPDIR)/$(*F)
# This converts a .d file in the current directory to a .P file in the .deps
# subdirectory, with the dummy targets as explained above.
define postprocess-depend
@if test ! -d $(DEPDIR); then mkdir $(DEPDIR); fi
@cp $*.d $(df).P
@sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' \
-e '/^$$/ d' -e 's/$$/ :/' < $*.d >> $(df).P
@rm -f $*.d
endef
ifeq ($(GCC), yes)
# GCC allows us to create object and dependency file in one invocation.
%.o : %.c
$(COMPILE.c) -MMD $< -o $@
@if test ! -d $(DEPDIR); then mkdir $(DEPDIR); fi; \
cp $*.d $(df).P; \
sed -e 's/#.*//' -e 's/^[^:]*: *//' -e 's/ *\\$$//' \
-e '/^$$/ d' -e 's/$$/ :/' < $*.d >> $(df).P; \
rm -f $*.d
$(COMPILE.c) -o $@ $< -MMD
$(postprocess-depend)
endif # GCC
ifeq ($(GXX), yes)
%.o : %.cc
$(COMPILE.cc) -o $@ $< -MMD
$(postprocess-depend)
endif # GXX
# Include all the dependency files generated for the current
# directory. List /dev/null as dummy because if the wildcard expands
# to nothing then make would complain.
@ -364,6 +384,6 @@ clean distclean maintainer-clean: clean-deps
.PHONY: clean-deps
clean-deps:
@rm -rf $(DEPDIR)
@rm -rf $(DEPDIR) *.d
endif # autodepend