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#------------------------------------------------------------------------- # # Makefile.shlib # Common rules for building shared libraries # # Copyright (c) 1998, Regents of the University of California # # IDENTIFICATION # src/Makefile.shlib # #------------------------------------------------------------------------- # This file should be included by any Postgres module Makefile that # wants to build a shared library (if possible for the current # platform). A static library is also built from the same object # files. Only one library can be built per makefile. # # Before including this file, the module Makefile must define these # variables: # # NAME Name of library to build (no suffix nor "lib" prefix) # 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_PREREQS Order-only prerequisites for library build target # SHLIB_EXPORTS (optional) Name of file containing list of symbols to # export, in the format "function_name number" # # 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 # platforms). # DLLTOOL_DEFFLAGS Additional flags when creating the dll .def file # DLLTOOL_LIBFLAGS Additional flags when creating the lib<module>.a file # DLLWRAP_FLAGS Additional flags to dllwrap # # The module Makefile must also include # $(top_builddir)/src/Makefile.global before including this file. # (Makefile.global sets PORTNAME and other needed symbols.) # # This makefile provides the following (phony) targets: # # 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 # # Since `all-lib' is the first rule in this file you probably want to # have the `all' target before including this file. In the most simple # case it would look like this: # # all: all-lib # # Similarly, the install rule might look like # # install: install-lib # # plus any additional things you want to install. Et cetera. # # Got that? Look at src/interfaces/libpq/Makefile for an example. # # While the linker allows creation of most shared libraries, # -Bsymbolic requires resolution of all symbols, making the # compiler a better choice for shared library creation on ELF platforms. # With the linker, -Bsymbolic requires the crt1.o startup object file. # bjm 2001-02-10 COMPILER = $(CC) $(CFLAGS) LINK.static = $(AR) $(AROPT) ifdef SO_MAJOR_VERSION # Default library naming convention used by the majority of platforms ifeq ($(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 = $(shlib_major) else # Naming convention for dynamically loadable modules ifeq ($(enable_shared), yes) shlib = $(NAME)$(DLSUFFIX) endif endif stlib = lib$(NAME).a ifndef soname # additional flags for backend modules SHLIB_LINK += $(BE_DLLLIBS) endif # For each platform we support shared libraries on, set shlib to the # name of the library (if default above is not right), set # LINK.shared to the command to link the library, # and adjust SHLIB_LINK if necessary. # Try to keep the sections in some kind of order, folks... override CFLAGS += $(CFLAGS_SL) ifdef SO_MAJOR_VERSION # libraries ought to use this to refer to versioned gettext domain names override CPPFLAGS += -DSO_MAJOR_VERSION=$(SO_MAJOR_VERSION) endif ifeq ($(PORTNAME), aix) ifdef SO_MAJOR_VERSION shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION) endif haslibarule = yes exports_file = lib$(NAME).exp endif ifeq ($(PORTNAME), darwin) 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 DLSUFFIX = .so LINK.shared = $(COMPILER) -bundle -multiply_defined suppress endif BUILD.exports = $(AWK) '/^[^\#]/ {printf "_%s\n",$$1}' $< >$@ exports_file = $(SHLIB_EXPORTS:%.txt=%.list) ifneq (,$(exports_file)) exported_symbols_list = -exported_symbols_list $(exports_file) endif endif ifeq ($(PORTNAME), openbsd) ifdef ELF_SYSTEM LINK.shared = $(COMPILER) -shared ifdef soname LINK.shared += -Wl,-x,-soname,$(soname) endif SHLIB_LINK += -lc else LINK.shared = $(LD) -x -Bshareable -Bforcearchive endif endif ifeq ($(PORTNAME), freebsd) ifdef ELF_SYSTEM 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 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 ifdef soname LINK.shared += -Wl,-x,-soname,$(soname) endif else LINK.shared = $(LD) -x -Bshareable -Bforcearchive endif endif ifeq ($(PORTNAME), hpux) ifdef SO_MAJOR_VERSION shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION) endif ifeq ($(with_gnu_ld), yes) LINK.shared = $(CC) -shared ifdef soname LINK.shared += -Wl,-h -Wl,$(soname) endif else LINK.shared = $(LD) -b ifdef soname LINK.shared += +h $(soname) endif # can't use the CC-syntax rpath pattern here, so instead: rpath = ifeq ($(enable_rpath), yes) 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 # ld can find the same libraries gcc does. Make sure it goes after any # -L switches provided explicitly. ifeq ($(GCC), yes) SHLIB_LINK += -L/usr/local/lib endif endif # And we need to link with libgcc, too ifeq ($(GCC), yes) SHLIB_LINK += `$(CC) $(LDFLAGS) -print-libgcc-file-name` endif endif ifeq ($(PORTNAME), irix) 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 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)) LINK.shared += -Wl,--version-script=$(exports_file) endif endif ifeq ($(PORTNAME), solaris) ifeq ($(GCC), yes) LINK.shared = $(COMPILER) -shared else LINK.shared = $(COMPILER) -G endif ifdef soname ifeq ($(with_gnu_ld), yes) LINK.shared += -Wl,-soname,$(soname) else LINK.shared += -h $(soname) endif endif endif ifeq ($(PORTNAME), osf) LINK.shared = $(LD) -shared -expect_unresolved '*' endif ifeq ($(PORTNAME), sco) ifeq ($(GCC), yes) LINK.shared = $(CC) -shared else LINK.shared = $(CC) -G endif LINK.shared += -Wl,-z,text ifdef soname LINK.shared += -Wl,-h,$(soname) endif endif ifeq ($(PORTNAME), unixware) ifeq ($(GCC), yes) LINK.shared = $(CC) -shared else LINK.shared = $(CC) -G endif LINK.shared += -Wl,-z,text ifdef soname LINK.shared += -Wl,-h,$(soname) endif endif ifeq ($(PORTNAME), cygwin) LINK.shared = $(CC) -shared ifdef SO_MAJOR_VERSION shlib = cyg$(NAME)$(DLSUFFIX) endif haslibarule = yes endif ifeq ($(PORTNAME), win32) ifdef SO_MAJOR_VERSION shlib = lib$(NAME)$(DLSUFFIX) endif haslibarule = yes endif ## ## BUILD ## .PHONY: 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: $(stlib) all-shared-lib: $(shlib) ifndef haslibarule $(stlib): $(OBJS) | $(SHLIB_PREREQS) rm -f $@ $(LINK.static) $@ $^ $(RANLIB) $@ endif #haslibarule ifeq ($(enable_shared), yes) ifeq (,$(filter cygwin win32,$(PORTNAME))) ifneq ($(PORTNAME), aix) # Normal case $(shlib): $(OBJS) | $(SHLIB_PREREQS) $(LINK.shared) -o $@ $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) ifdef shlib_major # If we're using major and minor versions, then make a symlink to major-version-only. ifneq ($(shlib), $(shlib_major)) rm -f $(shlib_major) $(LN_S) $(shlib) $(shlib_major) endif # Make sure we have a link to a name without any version numbers ifneq ($(shlib), $(shlib_bare)) rm -f $(shlib_bare) $(LN_S) $(shlib) $(shlib_bare) endif endif # shlib_major # Where possible, restrict the symbols exported by the library to just the # official list, so as to avoid unintentional ABI changes. On recent Darwin # this also quiets multiply-defined-symbol warnings in programs that use # libpgport along with libpq. ifneq (,$(SHLIB_EXPORTS)) ifdef BUILD.exports $(shlib): $(SHLIB_EXPORTS:%.txt=%.list) $(SHLIB_EXPORTS:%.txt=%.list): %.list: %.txt $(BUILD.exports) endif endif else # PORTNAME == aix # AIX case # There is no correct way to write a rule that generates two files. # Rules with two targets don't have that meaning, they are merely # shorthand for two otherwise separate rules. To be safe for parallel # make, we must chain the dependencies like this. The semicolon is # important, otherwise make will choose some built-in rule. $(stlib): $(shlib) ; $(shlib): $(OBJS) | $(SHLIB_PREREQS) rm -f $(stlib) $(LINK.static) $(stlib) $^ $(RANLIB) $(stlib) $(MKLDEXPORT) $(stlib) >$(exports_file) $(COMPILER) -o $(shlib) $(stlib) -Wl,-bE:$(exports_file) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) rm -f $(stlib) $(AR) $(AROPT) $(stlib) $(shlib) endif # PORTNAME == aix else # PORTNAME == cygwin || PORTNAME == win32 # Cygwin or Win32 case # If SHLIB_EXPORTS is set, the rules below will build a .def file from # that. Else we build a temporary one here. ifeq ($(PORTNAME), cygwin) $(shlib): $(OBJS) | $(SHLIB_PREREQS) $(CC) $(CFLAGS) -shared -o $@ $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) $(LDAP_LIBS_BE) $(stlib): $(OBJS) | $(SHLIB_PREREQS) rm -f $@ $(LINK.static) $@ $^ $(RANLIB) $@ else ifeq (,$(SHLIB_EXPORTS)) DLL_DEFFILE = lib$(NAME)dll.def exports_file = $(DLL_DEFFILE) $(exports_file): $(OBJS) $(DLLTOOL) --export-all $(DLLTOOL_DEFFLAGS) --output-def $@ $^ else DLL_DEFFILE = lib$(NAME)dll.def endif $(shlib): $(OBJS) $(DLL_DEFFILE) | $(SHLIB_PREREQS) $(DLLWRAP) -o $@ --dllname $(shlib) $(DLLWRAP_FLAGS) --def $(DLL_DEFFILE) $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(stlib): $(shlib) $(DLL_DEFFILE) | $(SHLIB_PREREQS) $(DLLTOOL) --dllname $(shlib) $(DLLTOOL_LIBFLAGS) --def $(DLL_DEFFILE) --output-lib $@ endif # PORTNAME == cygwin endif # PORTNAME == cygwin || PORTNAME == win32 endif # enable_shared # We need several not-quite-identical variants of .DEF files to build # DLLs for Windows. These are made from the single source file # exports.txt. Since we can't assume that Windows boxes will have # sed, the .DEF files are always built and included in distribution # tarballs. ifneq (,$(SHLIB_EXPORTS)) distprep: lib$(NAME)dll.def lib$(NAME)ddll.def blib$(NAME)dll.def UC_NAME = $(shell echo $(NAME) | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ') lib$(NAME)dll.def: $(SHLIB_EXPORTS) echo '; DEF file for MS VC++' >$@ echo 'LIBRARY LIB$(UC_NAME)' >>$@ echo 'EXPORTS' >>$@ sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1@ \2/' $< >>$@ lib$(NAME)ddll.def: $(SHLIB_EXPORTS) echo '; DEF file for MS VC++' >$@ echo 'LIBRARY LIB$(UC_NAME)D' >>$@ echo 'EXPORTS' >>$@ sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1@ \2/' $< >>$@ blib$(NAME)dll.def: $(SHLIB_EXPORTS) echo '; DEF file for Borland C++ Builder' >$@ echo 'LIBRARY BLIB$(UC_NAME)' >>$@ echo 'EXPORTS' >>$@ sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ _\1@ \2/' $< >>$@ echo >>$@ echo '; Aliases for MS compatible names' >> $@ sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1= _\1/' $< | sed 's/ *$$//' >>$@ endif # SHLIB_EXPORTS ## ## INSTALL ## .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: $(stlib) installdirs-lib $(INSTALL_STLIB) $< '$(DESTDIR)$(libdir)/$(stlib)' ifeq ($(PORTNAME), darwin) cd '$(DESTDIR)$(libdir)' && \ ranlib $(stlib) endif ifeq ($(enable_shared), yes) install-lib-shared: $(shlib) installdirs-lib ifdef soname # we don't install $(shlib) on AIX # (see http://archives.postgresql.org/message-id/52EF20B2E3209443BC37736D00C3C1380A6E79FE@EXADV1.host.magwien.gv.at) ifneq ($(PORTNAME), aix) $(INSTALL_SHLIB) $< '$(DESTDIR)$(libdir)/$(shlib)' ifneq ($(PORTNAME), cygwin) ifneq ($(PORTNAME), win32) ifneq ($(shlib), $(shlib_major)) cd '$(DESTDIR)$(libdir)' && \ rm -f $(shlib_major) && \ $(LN_S) $(shlib) $(shlib_major) endif ifneq ($(shlib), $(shlib_bare)) cd '$(DESTDIR)$(libdir)' && \ rm -f $(shlib_bare) && \ $(LN_S) $(shlib) $(shlib_bare) 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 $(MKDIR_P) '$(DESTDIR)$(libdir)' else $(MKDIR_P) '$(DESTDIR)$(pkglibdir)' endif ## ## UNINSTALL ## .PHONY: uninstall-lib uninstall-lib: ifdef soname rm -f '$(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 ## ## CLEAN ## .PHONY: clean-lib clean-lib: rm -f $(shlib) $(shlib_bare) $(shlib_major) $(stlib) $(exports_file) ifneq (,$(SHLIB_EXPORTS)) maintainer-clean-lib: rm -f lib$(NAME)dll.def lib$(NAME)ddll.def blib$(NAME)dll.def endif