From 3343ea9e8ea4f552b3f6e5436938f2f0e153b947 Mon Sep 17 00:00:00 2001
From: Tom Lane <tgl@sss.pgh.pa.us>
Date: Tue, 5 Jan 2016 15:47:05 -0500
Subject: [PATCH] Sort $(wildcard) output where needed for reproducible build
 output.

The order of inclusion of .o files makes a difference in linker output;
not a functional difference, but still a bitwise difference, which annoys
some packagers who would like reproducible builds.

Report and patch by Christoph Berg
---
 contrib/hstore_plperl/Makefile   | 2 +-
 contrib/hstore_plpython/Makefile | 4 ++--
 contrib/ltree_plpython/Makefile  | 4 ++--
 src/bin/pg_xlogdump/Makefile     | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/contrib/hstore_plperl/Makefile b/contrib/hstore_plperl/Makefile
index 8f7b171bcd..b3b8654bc8 100644
--- a/contrib/hstore_plperl/Makefile
+++ b/contrib/hstore_plperl/Makefile
@@ -32,7 +32,7 @@ endif
 ifeq ($(PORTNAME), win32)
 # these settings are the same as for plperl
 override CPPFLAGS += -DPLPERL_HAVE_UID_GID -Wno-comment
-SHLIB_LINK += ../hstore/libhstore.a $(wildcard ../../src/pl/plperl/libperl*.a)
+SHLIB_LINK += ../hstore/libhstore.a $(sort $(wildcard ../../src/pl/plperl/libperl*.a))
 endif
 
 ifeq ($(PORTNAME), cygwin)
diff --git a/contrib/hstore_plpython/Makefile b/contrib/hstore_plpython/Makefile
index 2de00a2c43..c4dad6f111 100644
--- a/contrib/hstore_plpython/Makefile
+++ b/contrib/hstore_plpython/Makefile
@@ -27,10 +27,10 @@ endif
 # dependency.  This does preclude pgxs builds.
 ifeq ($(PORTNAME), aix)
 rpathdir = $(pkglibdir):$(python_libdir)
-SHLIB_LINK += ../hstore/libhstore.exp $(python_libspec) $(python_additional_libs) $(wildcard ../../src/pl/plpython/libplpython*.exp)
+SHLIB_LINK += ../hstore/libhstore.exp $(python_libspec) $(python_additional_libs) $(sort $(wildcard ../../src/pl/plpython/libplpython*.exp))
 endif
 ifeq ($(PORTNAME), win32)
-SHLIB_LINK += ../hstore/libhstore.a $(wildcard ../../src/pl/plpython/libpython*.a) $(wildcard ../../src/pl/plpython/libplpython*.a)
+SHLIB_LINK += ../hstore/libhstore.a $(sort $(wildcard ../../src/pl/plpython/libpython*.a)) $(sort $(wildcard ../../src/pl/plpython/libplpython*.a))
 endif
 
 ifeq ($(PORTNAME), cygwin)
diff --git a/contrib/ltree_plpython/Makefile b/contrib/ltree_plpython/Makefile
index 7eacb40115..08186f19a1 100644
--- a/contrib/ltree_plpython/Makefile
+++ b/contrib/ltree_plpython/Makefile
@@ -27,10 +27,10 @@ endif
 # dependency.  This does preclude pgxs builds.
 ifeq ($(PORTNAME), aix)
 rpathdir = $(pkglibdir):$(python_libdir)
-SHLIB_LINK += $(python_libspec) $(python_additional_libs) $(wildcard ../../src/pl/plpython/libplpython*.exp)
+SHLIB_LINK += $(python_libspec) $(python_additional_libs) $(sort $(wildcard ../../src/pl/plpython/libplpython*.exp))
 endif
 ifeq ($(PORTNAME), win32)
-SHLIB_LINK += $(wildcard ../../src/pl/plpython/libpython*.a) $(wildcard ../../src/pl/plpython/libplpython*.a)
+SHLIB_LINK += $(sort $(wildcard ../../src/pl/plpython/libpython*.a)) $(sort $(wildcard ../../src/pl/plpython/libplpython*.a))
 endif
 
 ifeq ($(PORTNAME), cygwin)
diff --git a/src/bin/pg_xlogdump/Makefile b/src/bin/pg_xlogdump/Makefile
index 315e869ffe..11df47d516 100644
--- a/src/bin/pg_xlogdump/Makefile
+++ b/src/bin/pg_xlogdump/Makefile
@@ -12,7 +12,7 @@ OBJS = pg_xlogdump.o compat.o xlogreader.o rmgrdesc.o \
 
 override CPPFLAGS := -DFRONTEND $(CPPFLAGS)
 
-RMGRDESCSOURCES = $(notdir $(wildcard $(top_srcdir)/src/backend/access/rmgrdesc/*desc.c))
+RMGRDESCSOURCES = $(sort $(notdir $(wildcard $(top_srcdir)/src/backend/access/rmgrdesc/*desc.c)))
 RMGRDESCOBJS = $(patsubst %.c,%.o,$(RMGRDESCSOURCES))
 
 
-- 
GitLab