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3b8f6e75f3
Commit 372728b0d created some problems for usages like building a
subdirectory without having first done "make all" at the top level,
or for proceeding directly to "make install" without "make all".
The only reasonably clean way to fix this seems to be to force the
submake-generated-headers rule to fire in *any* "make all" or "make
install" command anywhere in the tree. To avoid lots of redundant work,
as well as parallel make jobs possibly clobbering each others' output, we
still need to be sure that the rule fires only once in a recursive build.
For that, adopt the same MAKELEVEL hack previously used for "temp-install".
But try to document it a bit better.
The submake-errcodes mechanism previously used in src/port/ and src/common/
is subsumed by this, so we can get rid of those special cases. It was
inadequate for src/common/ anyway after the aforesaid commit, and it always
risked parallel attempts to build errcodes.h.
Discussion: https://postgr.es/m/E1f5FAB-0006LU-MB@gemulon.postgresql.org
115 lines
3.8 KiB
Makefile
115 lines
3.8 KiB
Makefile
#-------------------------------------------------------------------------
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#
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# Makefile
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# Makefile for the port-specific subsystem of the backend
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#
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# These files are used in other directories for portability on systems
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# with broken/missing library files, and for common code sharing.
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#
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# This makefile generates two 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 application and 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 binaries
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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 = $(LIBOBJS) $(PG_CRC32C_OBJS) chklocale.o erand48.o inet_net_ntop.o \
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noblock.o path.o pgcheckdir.o pgmkdirp.o pgsleep.o \
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pgstrcasecmp.o pqsignal.o \
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qsort.o qsort_arg.o quotes.o sprompt.o tar.o thread.o
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ifeq ($(enable_strong_random), yes)
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OBJS += pg_strong_random.o
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endif
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# foo_srv.o and foo.o are both built from foo.c, but only foo.o has -DFRONTEND
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OBJS_SRV = $(OBJS:%.o=%_srv.o)
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all: libpgport.a libpgport_srv.a
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# libpgport is needed by some contrib
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install: all installdirs
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$(INSTALL_STLIB) libpgport.a '$(DESTDIR)$(libdir)/libpgport.a'
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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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libpgport.a: $(OBJS)
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rm -f $@
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$(AR) $(AROPT) $@ $^
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# thread.o needs PTHREAD_CFLAGS (but thread_srv.o does not)
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thread.o: CFLAGS+=$(PTHREAD_CFLAGS)
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# pg_crc32c_sse42.o and its _srv.o version need CFLAGS_SSE42
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pg_crc32c_sse42.o: CFLAGS+=$(CFLAGS_SSE42)
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pg_crc32c_sse42_srv.o: CFLAGS+=$(CFLAGS_SSE42)
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# pg_crc32c_armv8.o and its _srv.o version need CFLAGS_ARMV8_CRC32C
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pg_crc32c_armv8.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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# 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_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_srv.a $(OBJS) $(OBJS_SRV) pg_config_paths.h
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