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Commit3690019

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We don't need to rebuild objfiles.txt every time an object file changes.
So only rebuild when a makefile changes (which presumably defines thefile list somewhere), and only touch the file if an object changed. Thetouch is necessary so the parent make knows something changed andultimately rebuilds postgres.
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‎src/backend/common.mk

Lines changed: 5 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,7 @@
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#
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# Common make rules for backend
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#
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# $PostgreSQL: pgsql/src/backend/common.mk,v 1.2 2008/02/25 17:55:42 petere Exp $
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# $PostgreSQL: pgsql/src/backend/common.mk,v 1.3 2008/02/26 07:20:38 petere Exp $
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#
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# When including this file, set OBJS to the object files created in
@@ -26,9 +26,12 @@ endif
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SUBSYS.o:$(SUBDIROBJS)$(OBJS)
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$(LD)$(LDREL)$(LDOUT)$@$^
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objfiles.txt:$(SUBDIROBJS)$(OBJS)
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objfiles.txt::$(MAKEFILE_LIST)
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($(if$(SUBDIROBJS),cat$(SUBDIROBJS);)echo$(addprefix$(subdir)/,$(OBJS)) )>$@
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objfiles.txt::$(SUBDIROBJS)$(OBJS)
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touch$@
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# make function to expand objfiles.txt contents
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expand_subsys =$(foreach file,$(filter%/objfiles.txt,$(1)),$(patsubst ../../src/backend/%,%,$(addprefix$(top_builddir)/,$(shell cat$(file)))))$(filter-out%/objfiles.txt,$(1))
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