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

@@ -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)

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)

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)

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))