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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 Stuff to append to library's link command # (typically, -L and -l switches for external libraries) # SHLIB_LINK_INTERNAL -L and -l switches for Postgres-supplied libraries # 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" # # Don't use SHLIB_LINK for references to files in the build tree, or the # wrong things will happen --- use SHLIB_LINK_INTERNAL for those! # # 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".) # # 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 # # Typically you would add `all-lib' to the `all' target so that `make all' # builds the libraries. 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) LDFLAGS_INTERNAL += $(SHLIB_LINK_INTERNAL) ifdef SO_MAJOR_VERSION # Default library naming convention used by the majority of platforms shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION) shlib_major = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION) shlib_bare = lib$(NAME)$(DLSUFFIX) # Testing the soname variable is a reliable way to determine whether a # linkable library is being built. soname = $(shlib_major) pkgconfigdir = $(libdir)/pkgconfig else # Naming convention for dynamically loadable modules shlib = $(NAME)$(DLSUFFIX) 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 # $(exports_file) is also usable as an import file exports_file = lib$(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 -Wl,-undefined,dynamic_lookup 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), 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), 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 all-lib: lib$(NAME).pc endif all-static-lib: $(stlib) all-shared-lib: $(shlib) # In this rule, "touch $@" works around a problem on some platforms wherein # ranlib updates the library file's mod time with a value calculated to # seconds precision. If the filesystem has sub-second timestamps, this can # cause the library file to appear older than its input files, triggering # parallel-make problems. ifndef haslibarule $(stlib): $(OBJS) | $(SHLIB_PREREQS) rm -f $@ $(LINK.static) $@ $^ $(RANLIB) $@ touch $@ endif #haslibarule ifeq (,$(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 # See notes in src/backend/parser/Makefile about the following two rules $(stlib): $(shlib) touch $@ $(shlib): $(OBJS) | $(SHLIB_PREREQS) rm -f $(stlib) $(LINK.static) $(stlib) $^ $(RANLIB) $(stlib) $(MKLDEXPORT) $(stlib) $(shlib) >$(exports_file) $(COMPILER) -o $(shlib) $(stlib) -Wl,-bE:$(exports_file) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) rm -f $(stlib) $(AR) $(AROPT) $(stlib) $(shlib) endif # PORTNAME == aix else # PORTNAME == cygwin || PORTNAME == win32 ifeq ($(PORTNAME), cygwin) # Cygwin case $(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 # Win32 case # See notes in src/backend/parser/Makefile about the following two rules $(stlib): $(shlib) touch $@ # XXX A backend that loads a module linked with libgcc_s_dw2-1.dll will exit # uncleanly, hence -static-libgcc. (Last verified with MinGW-w64 compilers # from i686-4.9.1-release-win32-dwarf-rt_v3-rev1.) Shared libgcc has better # support for C++/Java exceptions; while core PostgreSQL does not use them, it # would be nice to support shared libgcc for the benefit of extensions. # # If SHLIB_EXPORTS is set, the rules below will build a .def file from that. # Else we just use --export-all-symbols. ifeq (,$(SHLIB_EXPORTS)) $(shlib): $(OBJS) | $(SHLIB_PREREQS) $(CC) $(CFLAGS) -shared -static-libgcc -o $@ $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) -Wl,--export-all-symbols -Wl,--out-implib=$(stlib) else DLL_DEFFILE = lib$(NAME)dll.def $(shlib): $(OBJS) $(DLL_DEFFILE) | $(SHLIB_PREREQS) $(CC) $(CFLAGS) -shared -static-libgcc -o $@ $(OBJS) $(DLL_DEFFILE) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) -Wl,--out-implib=$(stlib) endif endif # PORTNAME == cygwin endif # PORTNAME == cygwin || PORTNAME == win32 %.pc: $(MAKEFILE_LIST) echo 'Name: lib$(NAME)' >$@ echo 'Description: PostgreSQL lib$(NAME) library' >>$@ echo 'Url: http://www.postgresql.org/' >>$@ echo 'Version: $(VERSION)' >>$@ echo 'Requires: ' >>$@ echo 'Requires.private: $(PKG_CONFIG_REQUIRES_PRIVATE)' >>$@ echo 'Cflags: -I$(includedir)' >>$@ echo 'Libs: -L$(libdir) -l$(NAME)' >>$@ # Record -L flags that the user might have passed in to the PostgreSQL # build to locate third-party libraries (e.g., ldap, ssl). Filter out # those that point inside the build or source tree. Use sort to # remove duplicates. Also record the -l flags necessary for static # linking, but not those already covered by Requires.private. echo 'Libs.private: $(sort $(filter-out -L.% -L$(top_srcdir)/%,$(filter -L%,$(LDFLAGS) $(SHLIB_LINK)))) $(filter-out $(PKG_CONFIG_REQUIRES_PRIVATE:lib%=-l%),$(filter -l%,$(SHLIB_LINK)))' >>$@ # 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: $(SHLIB_EXPORTS) echo '; DEF file for win32.mak release build and for Makefile.shlib (MinGW)' >$@ echo 'LIBRARY LIB$(UC_NAME).dll' >>$@ echo 'EXPORTS' >>$@ sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1@ \2/' $< >>$@ lib$(NAME)ddll.def: $(SHLIB_EXPORTS) echo '; DEF file for win32.mak debug build' >$@ echo 'LIBRARY LIB$(UC_NAME)D.dll' >>$@ echo 'EXPORTS' >>$@ sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1@ \2/' $< >>$@ blib$(NAME)dll.def: $(SHLIB_EXPORTS) echo '; DEF file for bcc32.mak (Borland C++ Builder)' >$@ 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/ *$$//' >>$@ endif # SHLIB_EXPORTS ## ## INSTALL ## .PHONY: install-lib install-lib-static install-lib-shared installdirs-lib install-lib: install-lib-shared ifdef soname install-lib: install-lib-static install-lib: install-lib-pc endif install-lib-pc: lib$(NAME).pc installdirs-lib $(INSTALL_DATA) $< '$(DESTDIR)$(pkgconfigdir)/lib$(NAME).pc' install-lib-static: $(stlib) installdirs-lib $(INSTALL_STLIB) $< '$(DESTDIR)$(libdir)/$(stlib)' ifeq ($(PORTNAME), darwin) cd '$(DESTDIR)$(libdir)' && \ $(RANLIB) $(stlib) endif 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) $(shlib_bare) endif endif # not win32 endif # not cygwin endif # not aix ifneq (,$(findstring $(PORTNAME),win32 cygwin)) $(INSTALL_SHLIB) $< '$(DESTDIR)$(bindir)/$(shlib)' endif else # no soname $(INSTALL_SHLIB) $< '$(DESTDIR)$(pkglibdir)/$(shlib)' endif installdirs-lib: ifdef soname $(MKDIR_P) '$(DESTDIR)$(libdir)' '$(DESTDIR)$(pkgconfigdir)' $(if $(findstring $(PORTNAME),win32 cygwin),'$(DESTDIR)$(bindir)') else $(MKDIR_P) '$(DESTDIR)$(pkglibdir)' endif ## ## UNINSTALL ## .PHONY: uninstall-lib uninstall-lib: ifdef soname rm -f '$(DESTDIR)$(libdir)/$(stlib)' rm -f '$(DESTDIR)$(libdir)/$(shlib_bare)' \ '$(DESTDIR)$(libdir)/$(shlib_major)' \ '$(DESTDIR)$(libdir)/$(shlib)' $(if $(findstring $(PORTNAME),win32 cygwin),'$(DESTDIR)$(bindir)/$(shlib)') \ '$(DESTDIR)$(pkgconfigdir)/lib$(NAME).pc' else # no soname rm -f '$(DESTDIR)$(pkglibdir)/$(shlib)' endif # no soname ## ## CLEAN ## .PHONY: clean-lib clean-lib: rm -f $(shlib) $(shlib_bare) $(shlib_major) $(stlib) $(exports_file) lib$(NAME).pc ifneq (,$(SHLIB_EXPORTS)) maintainer-clean-lib: rm -f lib$(NAME)dll.def lib$(NAME)ddll.def blib$(NAME)dll.def endif