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01368e5d9d
When maintaining or merging patches, one of the most common sources for conflicts are the list of objects in makefiles. Especially when the split across lines has been changed on both sides, which is somewhat common due to attempting to stay below 80 columns, those conflicts are unnecessarily laborious to resolve. By splitting, and alphabetically sorting, OBJS style lines into one object per line, conflicts should be less frequent, and easier to resolve when they still occur. Author: Andres Freund Discussion: https://postgr.es/m/20191029200901.vww4idgcxv74cwes@alap3.anarazel.de
163 lines
5.0 KiB
Makefile
163 lines
5.0 KiB
Makefile
#-------------------------------------------------------------------------
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#
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# Makefile
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# Makefile for src/port
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#
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# These files are used by the Postgres backend, and also by frontend
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# programs. Primarily, they are meant to provide portability on systems
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# with broken/missing library files.
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#
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# This makefile generates three outputs:
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#
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# libpgport.a - contains object files with FRONTEND defined,
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# for use by client applications
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#
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# libpgport_shlib.a - contains object files with FRONTEND defined,
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# built suitably for use in shared libraries; for use
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# by frontend libraries
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#
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# libpgport_srv.a - contains object files without FRONTEND defined,
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# for use only by the backend
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#
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# LIBOBJS is set by configure (via Makefile.global) to be the list of object
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# files that are conditionally needed as determined by configure's probing.
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# OBJS adds additional object files that are always compiled.
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#
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# IDENTIFICATION
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# src/port/Makefile
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#
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#-------------------------------------------------------------------------
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subdir = src/port
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top_builddir = ../..
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include $(top_builddir)/src/Makefile.global
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override CPPFLAGS := -I$(top_builddir)/src/port -DFRONTEND $(CPPFLAGS)
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LIBS += $(PTHREAD_LIBS)
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OBJS = \
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$(LIBOBJS) \
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$(PG_CRC32C_OBJS) \
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chklocale.o \
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erand48.o \
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inet_net_ntop.o \
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noblock.o \
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path.o \
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pg_bitutils.o \
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pg_strong_random.o \
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pgcheckdir.o \
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pgmkdirp.o \
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pgsleep.o \
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pgstrcasecmp.o \
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pgstrsignal.o \
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pqsignal.o \
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qsort.o \
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qsort_arg.o \
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quotes.o \
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snprintf.o \
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sprompt.o \
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strerror.o \
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tar.o \
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thread.o
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# libpgport.a, libpgport_shlib.a, and libpgport_srv.a contain the same files
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# foo.o, foo_shlib.o, and foo_srv.o are all built from foo.c
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OBJS_SHLIB = $(OBJS:%.o=%_shlib.o)
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OBJS_SRV = $(OBJS:%.o=%_srv.o)
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all: libpgport.a libpgport_shlib.a libpgport_srv.a
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# libpgport is needed by some contrib
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install: all installdirs
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$(INSTALL_STLIB) libpgport.a '$(DESTDIR)$(libdir)/libpgport.a'
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$(INSTALL_STLIB) libpgport_shlib.a '$(DESTDIR)$(libdir)/libpgport_shlib.a'
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installdirs:
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$(MKDIR_P) '$(DESTDIR)$(libdir)'
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uninstall:
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rm -f '$(DESTDIR)$(libdir)/libpgport.a'
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rm -f '$(DESTDIR)$(libdir)/libpgport_shlib.a'
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libpgport.a: $(OBJS)
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rm -f $@
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$(AR) $(AROPT) $@ $^
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# thread.o and thread_shlib.o need PTHREAD_CFLAGS (but thread_srv.o does not)
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thread.o: CFLAGS+=$(PTHREAD_CFLAGS)
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thread_shlib.o: CFLAGS+=$(PTHREAD_CFLAGS)
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# all versions of pg_crc32c_sse42.o need CFLAGS_SSE42
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pg_crc32c_sse42.o: CFLAGS+=$(CFLAGS_SSE42)
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pg_crc32c_sse42_shlib.o: CFLAGS+=$(CFLAGS_SSE42)
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pg_crc32c_sse42_srv.o: CFLAGS+=$(CFLAGS_SSE42)
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# all versions of pg_crc32c_armv8.o need CFLAGS_ARMV8_CRC32C
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pg_crc32c_armv8.o: CFLAGS+=$(CFLAGS_ARMV8_CRC32C)
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pg_crc32c_armv8_shlib.o: CFLAGS+=$(CFLAGS_ARMV8_CRC32C)
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pg_crc32c_armv8_srv.o: CFLAGS+=$(CFLAGS_ARMV8_CRC32C)
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#
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# Shared library versions of object files
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#
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libpgport_shlib.a: $(OBJS_SHLIB)
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rm -f $@
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$(AR) $(AROPT) $@ $^
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# Because this uses its own compilation rule, it doesn't use the
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# dependency tracking logic from Makefile.global. To make sure that
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# dependency tracking works anyway for the *_shlib.o files, depend on
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# their *.o siblings as well, which do have proper dependencies. It's
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# a hack that might fail someday if there is a *_shlib.o without a
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# corresponding *.o, but there seems little reason for that.
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%_shlib.o: %.c %.o
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$(CC) $(CFLAGS) $(CFLAGS_SL) $(CPPFLAGS) -c $< -o $@
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#
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# Server versions of object files
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#
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libpgport_srv.a: $(OBJS_SRV)
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rm -f $@
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$(AR) $(AROPT) $@ $^
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# Because this uses its own compilation rule, it doesn't use the
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# dependency tracking logic from Makefile.global. To make sure that
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# dependency tracking works anyway for the *_srv.o files, depend on
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# their *.o siblings as well, which do have proper dependencies. It's
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# a hack that might fail someday if there is a *_srv.o without a
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# corresponding *.o, but it works for now (and those would probably go
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# into src/backend/port/ anyway).
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%_srv.o: %.c %.o
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$(CC) $(CFLAGS) $(subst -DFRONTEND,, $(CPPFLAGS)) -c $< -o $@
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# Dependency is to ensure that path changes propagate
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path.o: path.c pg_config_paths.h
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path_shlib.o: path.c pg_config_paths.h
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path_srv.o: path.c pg_config_paths.h
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# We create a separate file rather than put these in pg_config.h
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# because many of these values come from makefiles and are not
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# available to configure.
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pg_config_paths.h: $(top_builddir)/src/Makefile.global
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echo "#define PGBINDIR \"$(bindir)\"" >$@
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echo "#define PGSHAREDIR \"$(datadir)\"" >>$@
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echo "#define SYSCONFDIR \"$(sysconfdir)\"" >>$@
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echo "#define INCLUDEDIR \"$(includedir)\"" >>$@
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echo "#define PKGINCLUDEDIR \"$(pkgincludedir)\"" >>$@
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echo "#define INCLUDEDIRSERVER \"$(includedir_server)\"" >>$@
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echo "#define LIBDIR \"$(libdir)\"" >>$@
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echo "#define PKGLIBDIR \"$(pkglibdir)\"" >>$@
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echo "#define LOCALEDIR \"$(localedir)\"" >>$@
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echo "#define DOCDIR \"$(docdir)\"" >>$@
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echo "#define HTMLDIR \"$(htmldir)\"" >>$@
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echo "#define MANDIR \"$(mandir)\"" >>$@
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clean distclean maintainer-clean:
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rm -f libpgport.a libpgport_shlib.a libpgport_srv.a
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rm -f $(OBJS) $(OBJS_SHLIB) $(OBJS_SRV) pg_config_paths.h
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