Implement a few changes to how shared libraries and dynamically loadable

modules are built.  Foremost, it creates a solid distinction between these two
types of targets based on what had already been implemented and duplicated in
ad hoc ways before.  Specifically,

- Dynamically loadable modules no longer get a soname.  The numbers previously
set in the makefiles were dummy numbers anyway, and the presence of a soname
upset a few packaging tools, so it is nicer not to have one.

- The cumbersome detour taken on installation (build a libfoo.so.0.0.0 and
then override the rule to install foo.so instead) is removed.

- Lots of duplicated code simplified.

14 files changed, 191 insertions, 184 deletions

diff --git a/src/Makefile.shlib b/src/Makefile.shlib
index ba488d5a5c..75b2494837 100644
--- a/src/Makefile.shlib
+++ b/src/Makefile.shlib
@@ -19,13 +19,18 @@
 # variables:
 #
 # NAME                  Name of library to build (no suffix nor "lib" prefix)
-# SO_MAJOR_VERSION      Major version number to use for shared library
-# SO_MINOR_VERSION      Minor version number to use for shared library
 # OBJS                  List of object files to include in library
 # SHLIB_LINK            If shared library relies on other libraries,
 #                       additional stuff to put in its link command
 # SHLIB_EXPORTS         (optional) Name of file containing list of symbols to
 #                       export
+#
+# When building a shared library, the following version information
+# must also be set.  It should be omitted when building a dynamically
+# loadable module.
+#
+# SO_MAJOR_VERSION      Major version number to use for shared library
+# SO_MINOR_VERSION      Minor version number to use for shared library
 # (If you want a patchlevel, include it in SO_MINOR_VERSION, e.g., "6.2".)
 #
 # Optional flags when building DLL's (only applicable to win32 and cygwin
@@ -42,6 +47,7 @@
 #
 # all-lib               build the static and shared (if applicable) libraries
 # install-lib           install the libraries into $(libdir)
+# installdirs-lib       create installation directory $(libdir)
 # uninstall-lib         remove the libraries from $(libdir)
 # clean-lib             delete the static and shared libraries from the build dir
 # maintainer-clean-lib  delete .def files built for win32
@@ -72,18 +78,34 @@ LINK.static = $(AR) $(AROPT)
 
 
 
-ifeq ($(enable_shared), yes)
-
 # Insert -L from LDFLAGS after any -L already present in SHLIB_LINK
 SHLIB_LINK := $(filter -L%, $(SHLIB_LINK)) $(filter -L%, $(LDFLAGS)) $(filter-out -L%, $(SHLIB_LINK))
 
 # Need a -L-free version of LDFLAGS to use in combination with SHLIB_LINK
 LDFLAGS_NO_L = $(filter-out -L%, $(LDFLAGS))
 
-# Default shlib naming convention used by the majority of platforms
+ifdef SO_MAJOR_VERSION
+# Default library naming convention used by the majority of platforms
+ifeq ($(enable_shared), yes)
 shlib		= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
 shlib_major	= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
 shlib_bare	= lib$(NAME)$(DLSUFFIX)
+endif
+# Testing the soname variable is a reliable way to determine whether a
+# linkable library is being built.
+soname		= $(shlib_major)
+stlib		= lib$(NAME).a
+else
+# Naming convention for dynamically loadable modules
+ifeq ($(enable_shared), yes)
+shlib		= $(NAME)$(DLSUFFIX)
+endif
+endif
+
+ifndef soname
+# additional flags for backend modules
+SHLIB_LINK := $(BE_DLLLIBS) $(SHLIB_LINK)
+endif
 
 # For each platform we support shared libraries on, set shlib to the
 # name of the library (if default above is not right), set
@@ -94,29 +116,29 @@ shlib_bare	= lib$(NAME)$(DLSUFFIX)
 
 override CFLAGS += $(CFLAGS_SL)
 
-soname = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
-
 ifeq ($(PORTNAME), aix)
-  shlib			= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
+  ifdef SO_MAJOR_VERSION
+    shlib		= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
+  endif
   haslibarule   = yes
   exports_file		= lib$(NAME).exp
 endif
 
 ifeq ($(PORTNAME), darwin)
-  ifneq ($(SO_MAJOR_VERSION), 0)
-    version_link	= -compatibility_version $(SO_MAJOR_VERSION) -current_version $(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
-  endif
-  ifeq ($(DLTYPE), library)
+  ifdef soname
     # linkable library
     DLSUFFIX		= .dylib
+    ifneq ($(SO_MAJOR_VERSION), 0)
+      version_link	= -compatibility_version $(SO_MAJOR_VERSION) -current_version $(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
+    endif
     LINK.shared		= $(COMPILER) -dynamiclib -install_name $(libdir)/lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX) $(version_link) $(exported_symbols_list) -multiply_defined suppress
+    shlib		= lib$(NAME).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)$(DLSUFFIX)
+    shlib_major		= lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX)
   else
-    # loadable module (default case)
+    # loadable module
     DLSUFFIX		= .so
     LINK.shared		= $(COMPILER) -bundle -multiply_defined suppress
   endif
-  shlib			= lib$(NAME).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)$(DLSUFFIX)
-  shlib_major		= lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX)
   BUILD.exports		= $(AWK) '/^[^\#]/ {printf "_%s\n",$$1}' $< >$@
   exports_file		= $(SHLIB_EXPORTS:%.txt=%.list)
   ifneq (,$(exports_file))
@@ -126,7 +148,10 @@ endif
 
 ifeq ($(PORTNAME), openbsd)
   ifdef ELF_SYSTEM
-    LINK.shared		= $(COMPILER) -shared -Wl,-x,-soname,$(soname)
+    LINK.shared		= $(COMPILER) -shared
+    ifdef soname
+      LINK.shared	+= -Wl,-x,-soname,$(soname)
+    endif
     SHLIB_LINK		+= -lc
   else
     LINK.shared		= $(LD) -x -Bshareable -Bforcearchive
@@ -135,7 +160,10 @@ endif
 
 ifeq ($(PORTNAME), bsdi)
   ifeq ($(DLSUFFIX), .so)
-    LINK.shared		= $(COMPILER) -shared -Wl,-x,-soname,$(soname)
+    LINK.shared		= $(COMPILER) -shared
+    ifdef soname
+      LINK.shared	+= -Wl,-x,-soname,$(soname)
+    endif
     SHLIB_LINK		+= -lc
   endif
   ifeq ($(DLSUFFIX), .o)
@@ -145,33 +173,50 @@ endif
 
 ifeq ($(PORTNAME), freebsd)
   ifdef ELF_SYSTEM
-    shlib		= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
-    LINK.shared		= $(COMPILER) -shared -Wl,-x,-soname,$(soname)
+    ifdef SO_MAJOR_VERSION
+      shlib		= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
+    endif
+    LINK.shared		= $(COMPILER) -shared
+    ifdef soname
+      LINK.shared	+= -Wl,-x,-soname,$(soname)
+    endif
   else
-    shlib		= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
+    ifdef SO_MAJOR_VERSION
+      shlib		= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
+    endif
     LINK.shared		= $(LD) -x -Bshareable -Bforcearchive
   endif
 endif
 
 ifeq ($(PORTNAME), netbsd)
   ifdef ELF_SYSTEM
-    LINK.shared		= $(COMPILER) -shared -Wl,-x,-soname,$(soname)
+    LINK.shared		= $(COMPILER) -shared
+    ifdef soname
+      LINK.shared	+= -Wl,-x,-soname,$(soname)
+    endif
   else
     LINK.shared		= $(LD) -x -Bshareable -Bforcearchive
   endif
 endif
 
 ifeq ($(PORTNAME), hpux)
-  shlib			= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
+  ifdef SO_MAJOR_VERSION
+    shlib			= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
+  endif
   ifeq ($(with_gnu_ld), yes)
-    LINK.shared		= $(CC) $(LDFLAGS_NO_L) -shared -Wl,-h -Wl,$(soname)
+    LINK.shared		= $(CC) $(LDFLAGS_NO_L) -shared
+    ifdef soname
+      LINK.shared	+= -Wl,-h -Wl,$(soname)
+    endif
   else
     # can't use the CC-syntax rpath pattern here
     rpath =
+    LINK.shared		= $(LD) -b
+    ifdef soname
+      LINK.shared	+= +h $(soname)
+    endif
     ifeq ($(enable_rpath), yes)
-      LINK.shared	= $(LD) +h $(soname) -b +b '$(rpathdir)'
-    else
-      LINK.shared	= $(LD) +h $(soname) -b
+      LINK.shared	+= +b '$(rpathdir)'
     endif
     # On HPUX platforms, gcc is usually configured to search for libraries
     # in /usr/local/lib, but ld won't do so.  Add an explicit -L switch so
@@ -188,12 +233,20 @@ ifeq ($(PORTNAME), hpux)
 endif
 
 ifeq ($(PORTNAME), irix)
-  shlib			= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
-  LINK.shared		= $(COMPILER) -shared -Wl,-set_version,sgi$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
+  ifdef SO_MAJOR_VERSION
+    shlib		= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
+  endif
+  LINK.shared		= $(COMPILER) -shared
+  ifdef soname
+    LINK.shared		+= -Wl,-set_version,sgi$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
+  endif
 endif
 
 ifeq ($(PORTNAME), linux)
-  LINK.shared		= $(COMPILER) -shared -Wl,-soname,$(soname)
+  LINK.shared		= $(COMPILER) -shared
+  ifdef soname
+    LINK.shared		+= -Wl,-soname,$(soname)
+  endif
   BUILD.exports		= ( echo '{ global:'; $(AWK) '/^[^\#]/ {printf "%s;\n",$$1}' $<; echo ' local: *; };' ) >$@
   exports_file		= $(SHLIB_EXPORTS:%.txt=%.list)
   ifneq (,$(exports_file))
@@ -208,10 +261,12 @@ ifeq ($(PORTNAME), solaris)
 # CFLAGS added for X86_64
     LINK.shared		= $(CC) -G $(CFLAGS)
   endif
-  ifeq ($(with_gnu_ld), yes)
-    LINK.shared		+= -Wl,-soname,$(soname)
-  else
-    LINK.shared		+= -h $(soname)
+  ifdef soname
+    ifeq ($(with_gnu_ld), yes)
+      LINK.shared	+= -Wl,-soname,$(soname)
+    else
+      LINK.shared	+= -h $(soname)
+    endif
   endif
 endif
 
@@ -229,7 +284,10 @@ ifeq ($(PORTNAME), sco)
   else
     LINK.shared		= $(CC) -G
     endif
-  LINK.shared		+= -Wl,-z,text -Wl,-h,$(soname)
+  LINK.shared		+= -Wl,-z,text
+  ifdef soname
+    LINK.shared		+= -Wl,-h,$(soname)
+  endif
 endif
 
 ifeq ($(PORTNAME), svr4)
@@ -246,7 +304,10 @@ ifeq ($(PORTNAME), unixware)
   else
     LINK.shared		= $(CC) -G
   endif
-  LINK.shared		+= -Wl,-z,text -Wl,-h,$(soname) 
+  LINK.shared		+= -Wl,-z,text
+  ifdef soname
+    LINK.shared		+= -Wl,-h,$(soname)
+  endif
 endif
 
 ifeq ($(PORTNAME), cygwin)
@@ -263,8 +324,6 @@ ifeq ($(enable_rpath), yes)
 SHLIB_LINK += $(rpath)
 endif
 
-endif # enable_shared
-
 
 
 ##
@@ -273,14 +332,18 @@ endif # enable_shared
 
 .PHONY: all-lib all-static-lib all-shared-lib
 
-all-lib: all-static-lib all-shared-lib
+all-lib: all-shared-lib
+ifdef soname
+# no static library when building a dynamically loadable module
+all-lib: all-static-lib
+endif
 
-all-static-lib: lib$(NAME).a
+all-static-lib: $(stlib)
 
 all-shared-lib: $(shlib)
 
 ifndef haslibarule
-lib$(NAME).a: $(OBJS)
+$(stlib): $(OBJS)
 	$(LINK.static) $@ $^
 	$(RANLIB) $@
 endif #haslibarule
@@ -293,6 +356,7 @@ ifneq ($(PORTNAME), aix)
 # Normal case
 $(shlib): $(OBJS)
 	$(LINK.shared) $(LDFLAGS_SL) $(OBJS) $(SHLIB_LINK) -o $@
+ifdef shlib_major
 # If we're using major and minor versions, then make a symlink to major-version-only.
 ifneq ($(shlib), $(shlib_major))
 	rm -f $(shlib_major)
@@ -303,6 +367,7 @@ ifneq ($(shlib), $(shlib_bare))
 	rm -f $(shlib_bare)
 	$(LN_S) $(shlib) $(shlib_bare)
 endif
+endif # shlib_major
 
 # Where possible, restrict the symbols exported by the library to just the
 # official list, so as to avoid unintentional ABI changes.  On recent Darwin
@@ -320,13 +385,13 @@ endif
 else # PORTNAME == aix
 
 # AIX case
-$(shlib) lib$(NAME).a: $(OBJS)
-	$(LINK.static) lib$(NAME).a $^
-	$(RANLIB) lib$(NAME).a
-	$(MKLDEXPORT) lib$(NAME).a >$(exports_file)
-	$(COMPILER) $(LDFLAGS_NO_L) $(LDFLAGS_SL) -o $(shlib) lib$(NAME).a -Wl,-bE:$(exports_file) $(SHLIB_LINK)
-	rm -f lib$(NAME).a
-	$(AR) $(AROPT) lib$(NAME).a $(shlib)
+$(shlib) $(stlib): $(OBJS)
+	$(LINK.static) $(stlib) $^
+	$(RANLIB) $(stlib)
+	$(MKLDEXPORT) $(stlib) >$(exports_file)
+	$(COMPILER) $(LDFLAGS_NO_L) $(LDFLAGS_SL) -o $(shlib) $(stlib) -Wl,-bE:$(exports_file) $(SHLIB_LINK)
+	rm -f $(stlib)
+	$(AR) $(AROPT) $(stlib) $(shlib)
 
 endif # PORTNAME == aix
 
@@ -348,7 +413,7 @@ endif
 $(shlib): $(OBJS) $(DLL_DEFFILE)
 	$(DLLWRAP) $(LDFLAGS_SL) -o $@ --dllname $(shlib) $(DLLWRAP_FLAGS) --def $(DLL_DEFFILE) $(OBJS) $(SHLIB_LINK)
 
-lib$(NAME).a: $(shlib) $(DLL_DEFFILE)
+$(stlib): $(shlib) $(DLL_DEFFILE)
 	$(DLLTOOL) --dllname $(shlib) $(DLLTOOL_LIBFLAGS) --def $(DLL_DEFFILE) --output-lib $@
 
 endif # PORTNAME == cygwin || PORTNAME == win32
@@ -394,18 +459,22 @@ endif # SHLIB_EXPORTS
 ## INSTALL
 ##
 
-.PHONY: install-lib install-lib-static install-lib-shared
-install-lib: install-lib-static install-lib-shared
+.PHONY: install-lib install-lib-static install-lib-shared installdirs-lib
+install-lib: install-lib-shared
+ifdef soname
+install-lib: install-lib-static
+endif
 
-install-lib-static: lib$(NAME).a
-	$(INSTALL_STLIB) $< '$(DESTDIR)$(libdir)/lib$(NAME).a'
+install-lib-static: $(stlib) installdirs-lib
+	$(INSTALL_STLIB) $< '$(DESTDIR)$(libdir)/$(stlib)'
 ifeq ($(PORTNAME), darwin)
 	cd '$(DESTDIR)$(libdir)' && \
-	ranlib lib$(NAME).a
+	ranlib $(stlib)
 endif
 
 ifeq ($(enable_shared), yes)
-install-lib-shared: $(shlib)
+install-lib-shared: $(shlib) installdirs-lib
+ifdef soname
 # we don't install $(shlib) on AIX
 ifneq ($(PORTNAME), aix)
 	$(INSTALL_SHLIB) $< '$(DESTDIR)$(libdir)/$(shlib)'
@@ -424,21 +493,43 @@ endif
 endif # not win32
 endif # not cygwin
 endif # not aix
+else # no soname
+	$(INSTALL_SHLIB) $< '$(DESTDIR)$(pkglibdir)/$(shlib)'
+endif
+else # not enable_shared
+ifndef soname
+install-lib-shared:
+	@echo "*****"; \
+	 echo "* Module $(NAME) was not installed due to lack of shared library support."; \
+	 echo "*****"
+endif
 endif # enable_shared
 
 
+installdirs-lib:
+ifdef soname
+	$(mkinstalldirs) '$(DESTDIR)$(libdir)'
+else
+	$(mkinstalldirs) '$(DESTDIR)$(pkglibdir)'
+endif
+
+
 ##
 ## UNINSTALL
 ##
 
 .PHONY: uninstall-lib
 uninstall-lib:
-	rm -f '$(DESTDIR)$(libdir)/lib$(NAME).a'
+ifdef soname
+	rm -f '$(DESTDIR)$(libdir)/$(stlib)'
 ifeq ($(enable_shared), yes)
 	rm -f '$(DESTDIR)$(libdir)/$(shlib_bare)' \
 	  '$(DESTDIR)$(libdir)/$(shlib_major)' \
 	  '$(DESTDIR)$(libdir)/$(shlib)'
 endif # enable_shared
+else # no soname
+	rm -f '$(DESTDIR)$(pkglibdir)/$(shlib)'
+endif # no soname
 
 
 ##
@@ -447,10 +538,7 @@ endif # enable_shared
 
 .PHONY: clean-lib
 clean-lib:
-	rm -f lib$(NAME).a
-ifeq ($(enable_shared), yes)
-	rm -f $(shlib_bare) $(shlib_major) $(shlib) $(exports_file)
-endif
+	rm -f $(shlib) $(shlib_bare) $(shlib_major) $(stlib) $(exports_file)
 
 ifneq (,$(SHLIB_EXPORTS))
 maintainer-clean-lib:
diff --git a/src/backend/snowball/Makefile b/src/backend/snowball/Makefile
index ce2067af5c..3e6901b10f 100644
--- a/src/backend/snowball/Makefile
+++ b/src/backend/snowball/Makefile
@@ -77,11 +77,7 @@ else
 VPATH = $(srcdir)/libstemmer
 endif
 
-SHLIB_LINK 	:= $(BE_DLLLIBS)
-
 NAME := dict_snowball
-SO_MAJOR_VERSION := 0
-SO_MINOR_VERSION := 0
 rpath =
 
 all: all-shared-lib $(SQLSCRIPT)
@@ -116,10 +112,7 @@ else
 	echo "-- No language-specific snowball dictionaries, for lack of shared library support" > $@
 endif
 
-install: all installdirs
-ifeq ($(enable_shared), yes)
-	$(INSTALL_SHLIB) $(shlib) '$(DESTDIR)$(pkglibdir)/$(NAME)$(DLSUFFIX)'
-endif
+install: all installdirs install-lib
 	$(INSTALL_DATA) $(SQLSCRIPT) '$(DESTDIR)$(datadir)'
 	@set -e; \
 	set $(LANGUAGES) ; \
@@ -131,11 +124,10 @@ endif
 		fi \
 	done
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(pkglibdir)' '$(DESTDIR)$(datadir)' '$(DESTDIR)$(datadir)/$(DICTDIR)'
+installdirs: installdirs-lib
+	$(mkinstalldirs) '$(DESTDIR)$(datadir)' '$(DESTDIR)$(datadir)/$(DICTDIR)'
 
-uninstall:
-	rm -f '$(DESTDIR)$(pkglibdir)/$(NAME)$(DLSUFFIX)'
+uninstall: uninstall-lib
 	rm -f '$(DESTDIR)$(datadir)/$(SQLSCRIPT)'
 	@set -e; \
 	set $(LANGUAGES) ; \
diff --git a/src/backend/utils/mb/conversion_procs/proc.mk b/src/backend/utils/mb/conversion_procs/proc.mk
index 05bc2a4a09..77322a452e 100644
--- a/src/backend/utils/mb/conversion_procs/proc.mk
+++ b/src/backend/utils/mb/conversion_procs/proc.mk
@@ -1,26 +1,17 @@
 SRCS		+= $(NAME).c
 OBJS		+= $(NAME).o
 
-SHLIB_LINK 	:= $(BE_DLLLIBS)
-
-SO_MAJOR_VERSION := 0
-SO_MINOR_VERSION := 0
 rpath =
 
 all: all-shared-lib
 
 include $(top_srcdir)/src/Makefile.shlib
 
-install: all installdirs
-ifeq ($(enable_shared), yes)
-	$(INSTALL_SHLIB) $(shlib) '$(DESTDIR)$(pkglibdir)/$(NAME)$(DLSUFFIX)'
-endif
+install: all installdirs install-lib
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(pkglibdir)'
+installdirs: installdirs-lib
 
-uninstall:
-	rm -f '$(DESTDIR)$(pkglibdir)/$(NAME)$(DLSUFFIX)'
+uninstall: uninstall-lib
 
 clean distclean maintainer-clean: clean-lib
 	rm -f $(OBJS)
diff --git a/src/interfaces/ecpg/compatlib/Makefile b/src/interfaces/ecpg/compatlib/Makefile
index 1045ece14d..ea7aa69e88 100644
--- a/src/interfaces/ecpg/compatlib/Makefile
+++ b/src/interfaces/ecpg/compatlib/Makefile
@@ -16,7 +16,6 @@ include $(top_builddir)/src/Makefile.global
 NAME= ecpg_compat
 SO_MAJOR_VERSION= 3
 SO_MINOR_VERSION= 1
-DLTYPE= library
 
 override CPPFLAGS := -I../include -I$(top_srcdir)/src/interfaces/ecpg/include \
 	-I$(libpq_srcdir) -I$(top_srcdir)/src/include/utils $(CPPFLAGS)
@@ -42,8 +41,7 @@ snprintf.c: % : $(top_srcdir)/src/port/%
 
 install: all installdirs install-lib
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(libdir)'
+installdirs: installdirs-lib
 
 uninstall: uninstall-lib
 
diff --git a/src/interfaces/ecpg/ecpglib/Makefile b/src/interfaces/ecpg/ecpglib/Makefile
index 4e90041d03..1fd1e675b5 100644
--- a/src/interfaces/ecpg/ecpglib/Makefile
+++ b/src/interfaces/ecpg/ecpglib/Makefile
@@ -16,7 +16,6 @@ include $(top_builddir)/src/Makefile.global
 NAME= ecpg
 SO_MAJOR_VERSION= 6
 SO_MINOR_VERSION= 1
-DLTYPE= library
 
 override CPPFLAGS := -I../include -I$(top_srcdir)/src/interfaces/ecpg/include \
 	-I$(libpq_srcdir) -I$(top_builddir)/src/port $(CPPFLAGS)
@@ -63,8 +62,7 @@ $(top_builddir)/src/port/pg_config_paths.h:
 
 install: all installdirs install-lib
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(libdir)'
+installdirs: installdirs-lib
 
 uninstall: uninstall-lib
 
diff --git a/src/interfaces/ecpg/pgtypeslib/Makefile b/src/interfaces/ecpg/pgtypeslib/Makefile
index 5d2646da26..8b3c97f412 100644
--- a/src/interfaces/ecpg/pgtypeslib/Makefile
+++ b/src/interfaces/ecpg/pgtypeslib/Makefile
@@ -16,7 +16,6 @@ include $(top_builddir)/src/Makefile.global
 NAME= pgtypes
 SO_MAJOR_VERSION= 3
 SO_MINOR_VERSION= 1
-DLTYPE= library
 
 override CPPFLAGS := -I../include -I$(top_srcdir)/src/interfaces/ecpg/include \
 	-I$(top_srcdir)/src/include/utils -I$(libpq_srcdir) $(CPPFLAGS)
@@ -48,8 +47,7 @@ pgstrcasecmp.c rint.c snprintf.c: % : $(top_srcdir)/src/port/%
 
 install: all installdirs install-lib
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(libdir)'
+installdirs: installdirs-lib
 
 uninstall: uninstall-lib
 
diff --git a/src/interfaces/libpq/Makefile b/src/interfaces/libpq/Makefile
index 0fa3b77304..62c6b70ea9 100644
--- a/src/interfaces/libpq/Makefile
+++ b/src/interfaces/libpq/Makefile
@@ -18,7 +18,6 @@ include $(top_builddir)/src/Makefile.global
 NAME= pq
 SO_MAJOR_VERSION= 5
 SO_MINOR_VERSION= 2
-DLTYPE= library
 
 override CPPFLAGS :=  -DFRONTEND -I$(srcdir) $(CPPFLAGS) -I$(top_builddir)/src/port
 ifneq ($(PORTNAME), win32)
@@ -111,8 +110,8 @@ install: all installdirs install-lib
 	$(INSTALL_DATA) $(srcdir)/pqexpbuffer.h '$(DESTDIR)$(includedir_internal)'
 	$(INSTALL_DATA) $(srcdir)/pg_service.conf.sample '$(DESTDIR)$(datadir)/pg_service.conf.sample'
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(libdir)' '$(DESTDIR)$(includedir)' '$(DESTDIR)$(includedir_internal)'
+installdirs: installdirs-lib
+	$(mkinstalldirs) '$(DESTDIR)$(includedir)' '$(DESTDIR)$(includedir_internal)'
 
 uninstall: uninstall-lib
 	rm -f '$(DESTDIR)$(includedir)/libpq-fe.h' '$(DESTDIR)$(includedir_internal)/libpq-int.h' '$(DESTDIR)$(includedir_internal)/pqexpbuffer.h' '$(DESTDIR)$(datadir)/pg_service.conf.sample'
diff --git a/src/makefiles/pgxs.mk b/src/makefiles/pgxs.mk
index a4263a6b55..153fe56a58 100644
--- a/src/makefiles/pgxs.mk
+++ b/src/makefiles/pgxs.mk
@@ -80,10 +80,6 @@ all: $(PROGRAM) $(DATA_built) $(SCRIPTS_built) $(addsuffix $(DLSUFFIX), $(MODULE
 ifdef MODULE_big
 # shared library parameters
 NAME = $(MODULE_big)
-SO_MAJOR_VERSION= 0
-SO_MINOR_VERSION= 0
-
-SHLIB_LINK += $(BE_DLLLIBS)
 
 include $(top_srcdir)/src/Makefile.shlib
 
@@ -121,9 +117,6 @@ endif # DOCS
 ifdef PROGRAM
 	$(INSTALL_PROGRAM) $(PROGRAM)$(X) '$(DESTDIR)$(bindir)'
 endif # PROGRAM
-ifdef MODULE_big
-	$(INSTALL_SHLIB) $(shlib) '$(DESTDIR)$(pkglibdir)/$(MODULE_big)$(DLSUFFIX)'
-endif # MODULE_big
 ifdef SCRIPTS
 	@for file in $(addprefix $(srcdir)/, $(SCRIPTS)); do \
 	  echo "$(INSTALL_SCRIPT) $$file '$(DESTDIR)$(bindir)'"; \
@@ -137,6 +130,10 @@ ifdef SCRIPTS_built
 	done
 endif # SCRIPTS_built
 
+ifdef MODULE_big
+install: install-lib
+endif # MODULE_big
+
 
 installdirs:
 ifneq (,$(DATA)$(DATA_built))
@@ -145,7 +142,7 @@ endif
 ifneq (,$(DATA_TSEARCH))
 	$(mkinstalldirs) '$(DESTDIR)$(datadir)/tsearch_data'
 endif
-ifneq (,$(MODULES)$(MODULE_big))
+ifneq (,$(MODULES))
 	$(mkinstalldirs) '$(DESTDIR)$(pkglibdir)'
 endif
 ifdef DOCS
@@ -157,6 +154,10 @@ ifneq (,$(PROGRAM)$(SCRIPTS)$(SCRIPTS_built))
 	$(mkinstalldirs) '$(DESTDIR)$(bindir)'
 endif
 
+ifdef MODULE_big
+installdirs: installdirs-lib
+endif # MODULE_big
+
 
 uninstall:
 ifneq (,$(DATA)$(DATA_built))
@@ -174,9 +175,6 @@ endif
 ifdef PROGRAM
 	rm -f '$(DESTDIR)$(bindir)/$(PROGRAM)$(X)'
 endif
-ifdef MODULE_big
-	rm -f '$(DESTDIR)$(pkglibdir)/$(MODULE_big)$(DLSUFFIX)'
-endif
 ifdef SCRIPTS
 	rm -f $(addprefix '$(DESTDIR)$(bindir)'/, $(SCRIPTS))
 endif
@@ -184,6 +182,10 @@ ifdef SCRIPTS_built
 	rm -f $(addprefix '$(DESTDIR)$(bindir)'/, $(SCRIPTS_built))
 endif
 
+ifdef MODULE_big
+uninstall: uninstall-lib
+endif # MODULE_big
+
 
 clean:
 ifdef MODULES
diff --git a/src/pl/plperl/GNUmakefile b/src/pl/plperl/GNUmakefile
index fc033f4925..33bca54a8f 100644
--- a/src/pl/plperl/GNUmakefile
+++ b/src/pl/plperl/GNUmakefile
@@ -32,12 +32,10 @@ rpathdir = $(perl_archlibexp)/CORE
 
 
 NAME = plperl
-SO_MAJOR_VERSION = 0
-SO_MINOR_VERSION = 0
 
 OBJS = plperl.o spi_internal.o SPI.o
 
-SHLIB_LINK = $(perl_embed_ldflags) $(BE_DLLLIBS)
+SHLIB_LINK = $(perl_embed_ldflags)
 
 REGRESS_OPTS = --dbname=$(PL_TESTDB) --load-language=plperl
 REGRESS = plperl plperl_trigger plperl_shared plperl_elog
@@ -73,20 +71,11 @@ $(test_files_build): $(abs_builddir)/%: $(srcdir)/%
 
 endif
 
-install: all installdirs
-ifeq ($(enable_shared), yes)
-	$(INSTALL_SHLIB) $(shlib) '$(DESTDIR)$(pkglibdir)/plperl$(DLSUFFIX)'
-else
-	@echo "*****"; \
-	 echo "* PL/Perl was not installed due to lack of shared library support."; \
-	 echo "*****"
-endif
+install: all installdirs install-lib
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(pkglibdir)'
+installdirs: installdirs-lib
 
-uninstall:
-	rm -f '$(DESTDIR)$(pkglibdir)/plperl$(DLSUFFIX)'
+uninstall: uninstall-lib
 
 installcheck: submake
 	$(top_builddir)/src/test/regress/pg_regress --psqldir=$(PSQLDIR) $(REGRESS_OPTS) $(REGRESS)
diff --git a/src/pl/plpgsql/src/Makefile b/src/pl/plpgsql/src/Makefile
index 9067d70969..1a046d24c5 100644
--- a/src/pl/plpgsql/src/Makefile
+++ b/src/pl/plpgsql/src/Makefile
@@ -12,11 +12,9 @@ include $(top_builddir)/src/Makefile.global
 
 # Shared library parameters
 NAME= plpgsql
-SO_MAJOR_VERSION= 1
-SO_MINOR_VERSION= 0
 
 override CPPFLAGS := -I$(srcdir) $(CPPFLAGS)
-SHLIB_LINK = $(filter -lintl, $(LIBS)) $(BE_DLLLIBS)
+SHLIB_LINK = $(filter -lintl, $(LIBS))
 rpath =
 
 OBJS = pl_gram.o pl_handler.o pl_comp.o pl_exec.o pl_funcs.o
@@ -27,26 +25,12 @@ all: all-lib
 include $(top_srcdir)/src/Makefile.shlib
 
 
-# In order to use Makefile.shlib, we allow it to build a static
-# library libplpgsql.a, which we just ignore, as well as a shared
-# library that it will insist on naming $(shlib). We don't want to
-# call it that when installed, however, so we ignore the install-shlib
-# rule and do this instead:
+install: installdirs all install-lib
 
-install: installdirs all
-ifeq ($(enable_shared), yes)
-	$(INSTALL_SHLIB) $(shlib) '$(DESTDIR)$(pkglibdir)/plpgsql$(DLSUFFIX)'
-else
-	@echo "*****"; \
-	 echo "* PL/pgSQL was not installed due to lack of shared library support."; \
-	 echo "*****"
-endif
+installdirs: installdirs-lib
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(pkglibdir)'
+uninstall: uninstall-lib
 
-uninstall:
-	rm -f '$(DESTDIR)$(pkglibdir)/plpgsql$(DLSUFFIX)'
 
 # Force these dependencies to be known even without dependency info built:
 pl_gram.o pl_handler.o pl_comp.o pl_exec.o pl_funcs.o: plpgsql.h $(srcdir)/pl.tab.h
diff --git a/src/pl/plpython/Makefile b/src/pl/plpython/Makefile
index 6370dc5071..24e4122bc3 100644
--- a/src/pl/plpython/Makefile
+++ b/src/pl/plpython/Makefile
@@ -37,8 +37,6 @@ override CPPFLAGS := -I$(srcdir) $(python_includespec) $(CPPFLAGS)
 rpathdir = $(python_libdir)
 
 NAME = plpython
-SO_MAJOR_VERSION = 0
-SO_MINOR_VERSION = 0
 OBJS = plpython.o
 
 
@@ -56,7 +54,7 @@ python${pytverstr}.def: $(WD)/system32/python${pytverstr}.dll
 endif
 
 
-SHLIB_LINK = $(BE_DLLLIBS) $(python_libspec) $(python_additional_libs)
+SHLIB_LINK = $(python_libspec) $(python_additional_libs)
 
 REGRESS_OPTS = --dbname=$(PL_TESTDB) --load-language=plpythonu
 REGRESS = plpython_schema plpython_populate plpython_function plpython_test plpython_error plpython_drop
@@ -89,20 +87,11 @@ $(test_files_build): $(abs_builddir)/%: $(srcdir)/%
 
 endif
 
-install: all installdirs
-ifeq ($(enable_shared), yes)
-	$(INSTALL_SHLIB) $(shlib) '$(DESTDIR)$(pkglibdir)/plpython$(DLSUFFIX)'
-else
-	@echo "*****"; \
-	 echo "* PL/Python was not installed due to lack of shared library support."; \
-	 echo "*****"
-endif
+install: all installdirs install-lib
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(pkglibdir)'
+installdirs: installdirs-lib
 
-uninstall:
-	rm -f '$(DESTDIR)$(pkglibdir)/plpython$(DLSUFFIX)'
+uninstall: uninstall-lib
 
 installcheck: submake
 	$(top_builddir)/src/test/regress/pg_regress --psqldir=$(PSQLDIR) $(REGRESS_OPTS) $(REGRESS)
diff --git a/src/pl/tcl/Makefile b/src/pl/tcl/Makefile
index 56553454cd..ff5c925ec7 100644
--- a/src/pl/tcl/Makefile
+++ b/src/pl/tcl/Makefile
@@ -29,15 +29,12 @@ endif
 endif
 
 
+SHLIB_LINK = $(TCL_LIB_SPEC)
 ifneq ($(PORTNAME), win32)
-SHLIB_LINK = $(BE_DLLLIBS) $(TCL_LIB_SPEC) $(TCL_LIBS) -lc
-else
-SHLIB_LINK = $(TCL_LIB_SPEC) $(BE_DLLLIBS)
+SHLIB_LINK += $(TCL_LIBS) -lc
 endif
 
 NAME = pltcl
-SO_MAJOR_VERSION = 2
-SO_MINOR_VERSION = 0
 OBJS = pltcl.o
 
 REGRESS_OPTS = --dbname=$(PL_TESTDB) --load-language=pltcl
@@ -73,22 +70,13 @@ $(test_files_build): $(abs_builddir)/%: $(srcdir)/%
 
 endif
 
-install: all installdirs
-ifeq ($(enable_shared), yes)
-	$(INSTALL_SHLIB) $(shlib) '$(DESTDIR)$(pkglibdir)/$(NAME)$(DLSUFFIX)'
-else
-	@echo "*****"; \
-	 echo "* PL/Tcl was not installed due to lack of shared library support."; \
-	 echo "*****"
-endif
+install: all installdirs install-lib
 	$(MAKE) -C modules $@
 
-installdirs:
-	$(mkinstalldirs) '$(DESTDIR)$(pkglibdir)'
+installdirs: installdirs-lib
 	$(MAKE) -C modules $@
 
-uninstall:
-	rm -f '$(DESTDIR)$(pkglibdir)/$(NAME)$(DLSUFFIX)'
+uninstall: uninstall-lib
 	$(MAKE) -C modules $@
 
 installcheck: submake
diff --git a/src/test/regress/GNUmakefile b/src/test/regress/GNUmakefile
index 6441f2b568..8581cdd934 100644
--- a/src/test/regress/GNUmakefile
+++ b/src/test/regress/GNUmakefile
@@ -77,18 +77,11 @@ uninstall:
 # Build dynamically-loaded object file for CREATE FUNCTION ... LANGUAGE C.
 
 NAME = regress
-SO_MAJOR_VERSION= 0
-SO_MINOR_VERSION= 0
 OBJS = regress.o
-SHLIB_LINK = $(BE_DLLLIBS)
 
 include $(top_srcdir)/src/Makefile.shlib
 
-all: $(NAME)$(DLSUFFIX)
-
-$(NAME)$(DLSUFFIX): $(shlib)
-	rm -f $(NAME)$(DLSUFFIX)
-	$(LN_S) $(shlib) $(NAME)$(DLSUFFIX)
+all: all-lib
 
 # Test input and expected files.  These are created by pg_regress itself, so we
 # don't have a rule to create them.  We do need rules to clean them however.
@@ -169,7 +162,7 @@ bigcheck: all
 
 clean distclean maintainer-clean: clean-lib
 # things built by `all' target
-	rm -f $(NAME)$(DLSUFFIX) $(OBJS)
+	rm -f $(OBJS)
 	$(MAKE) -C $(contribdir)/spi clean
 	rm -f $(output_files) $(input_files) pg_regress_main.o pg_regress.o pg_regress$(X)
 # things created by various check targets
diff --git a/src/tutorial/Makefile b/src/tutorial/Makefile
index 12a3b1af59..cc48dc48e8 100644
--- a/src/tutorial/Makefile
+++ b/src/tutorial/Makefile
@@ -16,8 +16,6 @@
 MODULES = complex funcs
 DATA_built = advanced.sql basics.sql complex.sql funcs.sql syscat.sql
 
-SHLIB_LINK = $(BE_DLLLIBS)
-
 ifdef NO_PGXS
 subdir = src/tutorial
 top_builddir = ../..