1 #-------------------------------------------------------------------------
4 # Common rules for building shared libraries
6 # Copyright (c) 1998, Regents of the University of California
11 #-------------------------------------------------------------------------
13 # This file should be included by any Postgres module Makefile that
14 # wants to build a shared library (if possible for the current
15 # platform). A static library is also built from the same object
16 # files. Only one library can be built per makefile.
18 # Before including this file, the module Makefile must define these
21 # NAME Name of library to build (no suffix nor "lib" prefix)
22 # OBJS List of object files to include in library
23 # SHLIB_LINK If shared library relies on other libraries,
24 # additional stuff to put in its link command
25 # SHLIB_PREREQS Order-only prerequisites for library build target
26 # SHLIB_EXPORTS (optional) Name of file containing list of symbols to
27 # export, in the format "function_name number"
29 # When building a shared library, the following version information
30 # must also be set. It should be omitted when building a dynamically
33 # SO_MAJOR_VERSION Major version number to use for shared library
34 # SO_MINOR_VERSION Minor version number to use for shared library
35 # (If you want a patchlevel, include it in SO_MINOR_VERSION, e.g., "6.2".)
37 # Optional flags when building DLL's (only applicable to win32 and cygwin
39 # DLLTOOL_DEFFLAGS Additional flags when creating the dll .def file
40 # DLLTOOL_LIBFLAGS Additional flags when creating the lib<module>.a file
41 # DLLWRAP_FLAGS Additional flags to dllwrap
43 # The module Makefile must also include
44 # $(top_builddir)/src/Makefile.global before including this file.
45 # (Makefile.global sets PORTNAME and other needed symbols.)
47 # This makefile provides the following (phony) targets:
49 # all-lib build the static and shared (if applicable) libraries
50 # install-lib install the libraries into $(libdir)
51 # installdirs-lib create installation directory $(libdir)
52 # uninstall-lib remove the libraries from $(libdir)
53 # clean-lib delete the static and shared libraries from the build dir
54 # maintainer-clean-lib delete .def files built for win32
56 # Since `all-lib' is the first rule in this file you probably want to
57 # have the `all' target before including this file. In the most simple
58 # case it would look like this:
62 # Similarly, the install rule might look like
64 # install: install-lib
66 # plus any additional things you want to install. Et cetera.
68 # Got that? Look at src/interfaces/libpq/Makefile for an example.
70 # While the linker allows creation of most shared libraries,
71 # -Bsymbolic requires resolution of all symbols, making the
72 # compiler a better choice for shared library creation on ELF platforms.
73 # With the linker, -Bsymbolic requires the crt1.o startup object file.
77 COMPILER = $(CC) $(CFLAGS)
78 LINK.static = $(AR) $(AROPT)
82 ifdef SO_MAJOR_VERSION
83 # Default library naming convention used by the majority of platforms
84 ifeq ($(enable_shared), yes)
85 shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
86 shlib_major = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
87 shlib_bare = lib$(NAME)$(DLSUFFIX)
89 # Testing the soname variable is a reliable way to determine whether a
90 # linkable library is being built.
91 soname = $(shlib_major)
93 # Naming convention for dynamically loadable modules
94 ifeq ($(enable_shared), yes)
95 shlib = $(NAME)$(DLSUFFIX)
101 # additional flags for backend modules
102 SHLIB_LINK += $(BE_DLLLIBS)
105 # For each platform we support shared libraries on, set shlib to the
106 # name of the library (if default above is not right), set
107 # LINK.shared to the command to link the library,
108 # and adjust SHLIB_LINK if necessary.
110 # Try to keep the sections in some kind of order, folks...
112 override CFLAGS += $(CFLAGS_SL)
113 ifdef SO_MAJOR_VERSION
114 # libraries ought to use this to refer to versioned gettext domain names
115 override CPPFLAGS += -DSO_MAJOR_VERSION=$(SO_MAJOR_VERSION)
118 ifeq ($(PORTNAME), aix)
119 ifdef SO_MAJOR_VERSION
120 shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
123 exports_file = lib$(NAME).exp
126 ifeq ($(PORTNAME), darwin)
130 ifneq ($(SO_MAJOR_VERSION), 0)
131 version_link = -compatibility_version $(SO_MAJOR_VERSION) -current_version $(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
133 LINK.shared = $(COMPILER) -dynamiclib -install_name '$(libdir)/lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX)' $(version_link) $(exported_symbols_list) -multiply_defined suppress
134 shlib = lib$(NAME).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)$(DLSUFFIX)
135 shlib_major = lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX)
139 LINK.shared = $(COMPILER) -bundle -multiply_defined suppress
141 BUILD.exports = $(AWK) '/^[^\#]/ {printf "_%s\n",$$1}' $< >$@
142 exports_file = $(SHLIB_EXPORTS:%.txt=%.list)
143 ifneq (,$(exports_file))
144 exported_symbols_list = -exported_symbols_list $(exports_file)
148 ifeq ($(PORTNAME), openbsd)
150 LINK.shared = $(COMPILER) -shared
152 LINK.shared += -Wl,-x,-soname,$(soname)
156 LINK.shared = $(LD) -x -Bshareable -Bforcearchive
160 ifeq ($(PORTNAME), freebsd)
162 ifdef SO_MAJOR_VERSION
163 shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
165 LINK.shared = $(COMPILER) -shared
167 LINK.shared += -Wl,-x,-soname,$(soname)
170 ifdef SO_MAJOR_VERSION
171 shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
173 LINK.shared = $(LD) -x -Bshareable -Bforcearchive
177 ifeq ($(PORTNAME), netbsd)
179 LINK.shared = $(COMPILER) -shared
181 LINK.shared += -Wl,-x,-soname,$(soname)
184 LINK.shared = $(LD) -x -Bshareable -Bforcearchive
188 ifeq ($(PORTNAME), hpux)
189 ifdef SO_MAJOR_VERSION
190 shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
192 ifeq ($(with_gnu_ld), yes)
193 LINK.shared = $(CC) -shared
195 LINK.shared += -Wl,-h -Wl,$(soname)
198 LINK.shared = $(LD) -b
200 LINK.shared += +h $(soname)
202 # can't use the CC-syntax rpath pattern here, so instead:
204 ifeq ($(enable_rpath), yes)
205 LINK.shared += +b '$(rpathdir)'
207 # On HPUX platforms, gcc is usually configured to search for libraries
208 # in /usr/local/lib, but ld won't do so. Add an explicit -L switch so
209 # ld can find the same libraries gcc does. Make sure it goes after any
210 # -L switches provided explicitly.
212 SHLIB_LINK += -L/usr/local/lib
215 # And we need to link with libgcc, too
217 SHLIB_LINK += `$(CC) $(LDFLAGS) -print-libgcc-file-name`
221 ifeq ($(PORTNAME), irix)
222 ifdef SO_MAJOR_VERSION
223 shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
225 LINK.shared = $(COMPILER) -shared
227 LINK.shared += -Wl,-set_version,sgi$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
231 ifeq ($(PORTNAME), linux)
232 LINK.shared = $(COMPILER) -shared
234 LINK.shared += -Wl,-soname,$(soname)
236 BUILD.exports = ( echo '{ global:'; $(AWK) '/^[^\#]/ {printf "%s;\n",$$1}' $<; echo ' local: *; };' ) >$@
237 exports_file = $(SHLIB_EXPORTS:%.txt=%.list)
238 ifneq (,$(exports_file))
239 LINK.shared += -Wl,--version-script=$(exports_file)
243 ifeq ($(PORTNAME), solaris)
245 LINK.shared = $(COMPILER) -shared
247 LINK.shared = $(COMPILER) -G
250 ifeq ($(with_gnu_ld), yes)
251 LINK.shared += -Wl,-soname,$(soname)
253 LINK.shared += -h $(soname)
258 ifeq ($(PORTNAME), osf)
259 LINK.shared = $(LD) -shared -expect_unresolved '*'
262 ifeq ($(PORTNAME), sco)
264 LINK.shared = $(CC) -shared
266 LINK.shared = $(CC) -G
268 LINK.shared += -Wl,-z,text
270 LINK.shared += -Wl,-h,$(soname)
274 ifeq ($(PORTNAME), unixware)
276 LINK.shared = $(CC) -shared
278 LINK.shared = $(CC) -G
280 LINK.shared += -Wl,-z,text
282 LINK.shared += -Wl,-h,$(soname)
286 ifeq ($(PORTNAME), cygwin)
287 ifdef SO_MAJOR_VERSION
288 shlib = cyg$(NAME)$(DLSUFFIX)
293 ifeq ($(PORTNAME), win32)
294 ifdef SO_MAJOR_VERSION
295 shlib = lib$(NAME)$(DLSUFFIX)
306 .PHONY: all-lib all-static-lib all-shared-lib
308 all-lib: all-shared-lib
310 # no static library when building a dynamically loadable module
311 all-lib: all-static-lib
314 all-static-lib: $(stlib)
316 all-shared-lib: $(shlib)
319 $(stlib): $(OBJS) | $(SHLIB_PREREQS)
324 ifeq ($(enable_shared), yes)
326 ifeq (,$(filter cygwin win32,$(PORTNAME)))
327 ifneq ($(PORTNAME), aix)
330 $(shlib): $(OBJS) | $(SHLIB_PREREQS)
331 $(LINK.shared) -o $@ $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK)
333 # If we're using major and minor versions, then make a symlink to major-version-only.
334 ifneq ($(shlib), $(shlib_major))
336 $(LN_S) $(shlib) $(shlib_major)
338 # Make sure we have a link to a name without any version numbers
339 ifneq ($(shlib), $(shlib_bare))
341 $(LN_S) $(shlib) $(shlib_bare)
345 # Where possible, restrict the symbols exported by the library to just the
346 # official list, so as to avoid unintentional ABI changes. On recent Darwin
347 # this also quiets multiply-defined-symbol warnings in programs that use
348 # libpgport along with libpq.
349 ifneq (,$(SHLIB_EXPORTS))
351 $(shlib): $(SHLIB_EXPORTS:%.txt=%.list)
353 $(SHLIB_EXPORTS:%.txt=%.list): %.list: %.txt
358 else # PORTNAME == aix
361 $(shlib) $(stlib): $(OBJS) | $(SHLIB_PREREQS)
362 $(LINK.static) $(stlib) $^
364 $(MKLDEXPORT) $(stlib) >$(exports_file)
365 $(COMPILER) -o $(shlib) $(stlib) -Wl,-bE:$(exports_file) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK)
367 $(AR) $(AROPT) $(stlib) $(shlib)
369 endif # PORTNAME == aix
371 else # PORTNAME == cygwin || PORTNAME == win32
373 # Cygwin or Win32 case
375 # If SHLIB_EXPORTS is set, the rules below will build a .def file from
376 # that. Else we build a temporary one here.
377 ifeq (,$(SHLIB_EXPORTS))
378 DLL_DEFFILE = lib$(NAME)dll.def
379 exports_file = $(DLL_DEFFILE)
381 $(exports_file): $(OBJS)
382 $(DLLTOOL) --export-all $(DLLTOOL_DEFFLAGS) --output-def $@ $^
384 DLL_DEFFILE = lib$(NAME)dll.def
387 $(shlib): $(OBJS) $(DLL_DEFFILE) | $(SHLIB_PREREQS)
388 $(DLLWRAP) -o $@ --dllname $(shlib) $(DLLWRAP_FLAGS) --def $(DLL_DEFFILE) $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK)
390 $(stlib): $(shlib) $(DLL_DEFFILE) | $(SHLIB_PREREQS)
391 $(DLLTOOL) --dllname $(shlib) $(DLLTOOL_LIBFLAGS) --def $(DLL_DEFFILE) --output-lib $@
393 endif # PORTNAME == cygwin || PORTNAME == win32
395 endif # enable_shared
398 # We need several not-quite-identical variants of .DEF files to build
399 # DLLs for Windows. These are made from the single source file
400 # exports.txt. Since we can't assume that Windows boxes will have
401 # sed, the .DEF files are always built and included in distribution
404 ifneq (,$(SHLIB_EXPORTS))
405 distprep: lib$(NAME)dll.def lib$(NAME)ddll.def blib$(NAME)dll.def
407 UC_NAME = $(shell echo $(NAME) | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')
409 lib$(NAME)dll.def: $(SHLIB_EXPORTS)
410 echo '; DEF file for MS VC++' >$@
411 echo 'LIBRARY LIB$(UC_NAME)' >>$@
413 sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1@ \2/' $< >>$@
415 lib$(NAME)ddll.def: $(SHLIB_EXPORTS)
416 echo '; DEF file for MS VC++' >$@
417 echo 'LIBRARY LIB$(UC_NAME)D' >>$@
419 sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1@ \2/' $< >>$@
421 blib$(NAME)dll.def: $(SHLIB_EXPORTS)
422 echo '; DEF file for Borland C++ Builder' >$@
423 echo 'LIBRARY BLIB$(UC_NAME)' >>$@
425 sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ _\1@ \2/' $< >>$@
427 echo '; Aliases for MS compatible names' >> $@
428 sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1= _\1/' $< | sed 's/ *$$//' >>$@
429 endif # SHLIB_EXPORTS
436 .PHONY: install-lib install-lib-static install-lib-shared installdirs-lib
437 install-lib: install-lib-shared
439 install-lib: install-lib-static
442 install-lib-static: $(stlib) installdirs-lib
443 $(INSTALL_STLIB) $< '$(DESTDIR)$(libdir)/$(stlib)'
444 ifeq ($(PORTNAME), darwin)
445 cd '$(DESTDIR)$(libdir)' && \
449 ifeq ($(enable_shared), yes)
450 install-lib-shared: $(shlib) installdirs-lib
452 # we don't install $(shlib) on AIX
453 # (see http://archives.postgresql.org/message-id/52EF20B2E3209443BC37736D00C3C1380A6E79FE@EXADV1.host.magwien.gv.at)
454 ifneq ($(PORTNAME), aix)
455 $(INSTALL_SHLIB) $< '$(DESTDIR)$(libdir)/$(shlib)'
456 ifneq ($(PORTNAME), cygwin)
457 ifneq ($(PORTNAME), win32)
458 ifneq ($(shlib), $(shlib_major))
459 cd '$(DESTDIR)$(libdir)' && \
460 rm -f $(shlib_major) && \
461 $(LN_S) $(shlib) $(shlib_major)
463 ifneq ($(shlib), $(shlib_bare))
464 cd '$(DESTDIR)$(libdir)' && \
465 rm -f $(shlib_bare) && \
466 $(LN_S) $(shlib) $(shlib_bare)
472 $(INSTALL_SHLIB) $< '$(DESTDIR)$(pkglibdir)/$(shlib)'
474 else # not enable_shared
478 echo "* Module $(NAME) was not installed due to lack of shared library support."; \
481 endif # enable_shared
486 $(MKDIR_P) '$(DESTDIR)$(libdir)'
488 $(MKDIR_P) '$(DESTDIR)$(pkglibdir)'
496 .PHONY: uninstall-lib
499 rm -f '$(DESTDIR)$(libdir)/$(stlib)'
500 ifeq ($(enable_shared), yes)
501 rm -f '$(DESTDIR)$(libdir)/$(shlib_bare)' \
502 '$(DESTDIR)$(libdir)/$(shlib_major)' \
503 '$(DESTDIR)$(libdir)/$(shlib)'
504 endif # enable_shared
506 rm -f '$(DESTDIR)$(pkglibdir)/$(shlib)'
516 rm -f $(shlib) $(shlib_bare) $(shlib_major) $(stlib) $(exports_file)
518 ifneq (,$(SHLIB_EXPORTS))
519 maintainer-clean-lib:
520 rm -f lib$(NAME)dll.def lib$(NAME)ddll.def blib$(NAME)dll.def