mirror of
https://git.postgresql.org/git/postgresql.git
synced 2025-02-17 19:30:00 +08:00
0b16bb8776
There isn't a lot of user demand for AIX support, we have a bunch of
hacks to work around AIX-specific compiler bugs and idiosyncrasies,
and no one has stepped up to the plate to properly maintain it.
Remove support for AIX to get rid of that maintenance overhead. It's
still supported for stable versions.
The acute issue that triggered this decision was that after commit
8af2565248, the AIX buildfarm members have been hitting this
assertion:
TRAP: failed Assert("(uintptr_t) buffer == TYPEALIGN(PG_IO_ALIGN_SIZE, buffer)"), File: "md.c", Line: 472, PID: 2949728
Apperently the "pg_attribute_aligned(a)" attribute doesn't work on AIX
for values larger than PG_IO_ALIGN_SIZE, for a static const variable.
That could be worked around, but we decided to just drop the AIX support
instead.
Discussion: https://www.postgresql.org/message-id/20240224172345.32@rfd.leadboat.com
Reviewed-by: Andres Freund, Noah Misch, Thomas Munro
437 lines
14 KiB
Makefile
437 lines
14 KiB
Makefile
#-------------------------------------------------------------------------
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#
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# Makefile.shlib
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# Common rules for building shared libraries
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#
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# Copyright (c) 1998, Regents of the University of California
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#
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# IDENTIFICATION
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# src/Makefile.shlib
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#
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#-------------------------------------------------------------------------
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# This file should be included by any Postgres module Makefile that
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# wants to build a shared library (if possible for the current
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# platform). A static library is also built from the same object
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# files. Only one library can be built per makefile.
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#
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# Before including this file, the module Makefile must define these
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# variables:
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#
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# NAME Name of library to build (no suffix nor "lib" prefix)
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# OBJS List of object files to include in library
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# SHLIB_LINK Stuff to append to library's link command
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# (typically, -L and -l switches for external libraries)
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# SHLIB_LINK_INTERNAL -L and -l switches for Postgres-supplied libraries
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# SHLIB_PREREQS Order-only prerequisites for library build target
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# SHLIB_EXPORTS (optional) Name of file containing list of symbols to
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# export, in the format "function_name number"
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#
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# Don't use SHLIB_LINK for references to files in the build tree, or the
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# wrong things will happen --- use SHLIB_LINK_INTERNAL for those!
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#
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# When building a shared library, the following version information
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# must also be set. It should be omitted when building a dynamically
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# loadable module.
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#
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# SO_MAJOR_VERSION Major version number to use for shared library
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# SO_MINOR_VERSION Minor version number to use for shared library
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# (If you want a patchlevel, include it in SO_MINOR_VERSION, e.g., "6.2".)
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#
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# The module Makefile must also include
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# $(top_builddir)/src/Makefile.global before including this file.
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# (Makefile.global sets PORTNAME and other needed symbols.)
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#
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# This makefile provides the following (phony) targets:
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#
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# all-lib build the static and shared (if applicable) libraries
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# install-lib install the libraries into $(libdir)
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# installdirs-lib create installation directory $(libdir)
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# uninstall-lib remove the libraries from $(libdir)
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# clean-lib delete the static and shared libraries from the build dir
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#
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# Typically you would add `all-lib' to the `all' target so that `make all'
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# builds the libraries. In the most simple case it would look like this:
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#
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# all: all-lib
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#
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# Similarly, the install rule might look like
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#
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# install: install-lib
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#
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# plus any additional things you want to install. Et cetera.
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#
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# Got that? Look at src/interfaces/libpq/Makefile for an example.
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#
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COMPILER = $(CC) $(CFLAGS)
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LINK.static = $(AR) $(AROPT)
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LDFLAGS_INTERNAL += $(SHLIB_LINK_INTERNAL)
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ifdef SO_MAJOR_VERSION
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# Default library naming convention used by the majority of platforms
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shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
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shlib_major = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
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shlib_bare = lib$(NAME)$(DLSUFFIX)
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# Testing the soname variable is a reliable way to determine whether a
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# linkable library is being built.
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soname = $(shlib_major)
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pkgconfigdir = $(libdir)/pkgconfig
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else
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# Naming convention for dynamically loadable modules
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shlib = $(NAME)$(DLSUFFIX)
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endif
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stlib = lib$(NAME).a
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ifndef soname
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# additional flags for backend modules
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SHLIB_LINK += $(BE_DLLLIBS)
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endif
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# For each platform we support shared libraries on, set shlib to the
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# name of the library (if default above is not right), set
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# LINK.shared to the command to link the library,
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# and adjust SHLIB_LINK if necessary.
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# Try to keep the sections in some kind of order, folks...
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override CFLAGS += $(CFLAGS_SL)
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override CXXFLAGS += $(CFLAGS_SL)
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ifdef SO_MAJOR_VERSION
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# libraries ought to use this to refer to versioned gettext domain names
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override CPPFLAGS += -DSO_MAJOR_VERSION=$(SO_MAJOR_VERSION)
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endif
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ifeq ($(PORTNAME), darwin)
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ifdef soname
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# linkable library
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ifneq ($(SO_MAJOR_VERSION), 0)
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version_link = -compatibility_version $(SO_MAJOR_VERSION) -current_version $(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
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endif
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LINK.shared = $(COMPILER) -dynamiclib -install_name '$(libdir)/lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX)' $(version_link) $(exported_symbols_list)
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shlib = lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX)
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shlib_major = lib$(NAME).$(SO_MAJOR_VERSION)$(DLSUFFIX)
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else
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# loadable module
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LINK.shared = $(COMPILER) -bundle
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endif
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BUILD.exports = $(AWK) '/^[^\#]/ {printf "_%s\n",$$1}' $< >$@
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exports_file = $(SHLIB_EXPORTS:%.txt=%.list)
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ifneq (,$(exports_file))
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exported_symbols_list = -exported_symbols_list $(exports_file)
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endif
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endif
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ifeq ($(PORTNAME), openbsd)
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LINK.shared = $(COMPILER) -shared
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ifdef soname
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LINK.shared += -Wl,-x,-soname,$(soname)
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endif
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BUILD.exports = ( echo '{ global:'; $(AWK) '/^[^\#]/ {printf "%s;\n",$$1}' $<; echo ' local: *; };' ) >$@
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exports_file = $(SHLIB_EXPORTS:%.txt=%.list)
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ifneq (,$(exports_file))
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LINK.shared += -Wl,--version-script=$(exports_file)
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endif
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SHLIB_LINK += -lc
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endif
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ifeq ($(PORTNAME), freebsd)
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ifdef SO_MAJOR_VERSION
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shlib = lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
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endif
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LINK.shared = $(COMPILER) -shared
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ifdef soname
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LINK.shared += -Wl,-x,-soname,$(soname)
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endif
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BUILD.exports = ( echo '{ global:'; $(AWK) '/^[^\#]/ {printf "%s;\n",$$1}' $<; echo ' local: *; };' ) >$@
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exports_file = $(SHLIB_EXPORTS:%.txt=%.list)
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ifneq (,$(exports_file))
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LINK.shared += -Wl,--version-script=$(exports_file)
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endif
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endif
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ifeq ($(PORTNAME), netbsd)
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LINK.shared = $(COMPILER) -shared
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ifdef soname
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LINK.shared += -Wl,-x,-soname,$(soname)
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endif
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BUILD.exports = ( echo '{ global:'; $(AWK) '/^[^\#]/ {printf "%s;\n",$$1}' $<; echo ' local: *; };' ) >$@
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exports_file = $(SHLIB_EXPORTS:%.txt=%.list)
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ifneq (,$(exports_file))
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LINK.shared += -Wl,--version-script=$(exports_file)
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endif
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endif
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ifeq ($(PORTNAME), linux)
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LINK.shared = $(COMPILER) -shared
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ifdef soname
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ifneq (,$(findstring linux-android,$(host_os)))
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# Android uses unversioned shared libraries
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shlib = $(shlib_bare)
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soname = $(shlib_bare)
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endif
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LINK.shared += -Wl,-soname,$(soname)
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endif
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BUILD.exports = ( echo '{ global:'; $(AWK) '/^[^\#]/ {printf "%s;\n",$$1}' $<; echo ' local: *; };' ) >$@
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exports_file = $(SHLIB_EXPORTS:%.txt=%.list)
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ifneq (,$(exports_file))
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LINK.shared += -Wl,--version-script=$(exports_file)
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endif
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endif
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ifeq ($(PORTNAME), solaris)
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LINK.shared = $(COMPILER) -shared
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ifdef soname
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LINK.shared += -Wl,-soname,$(soname)
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endif
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BUILD.exports = ( echo '{ global:'; $(AWK) '/^[^\#]/ {printf "%s;\n",$$1}' $<; echo ' local: *; };' ) >$@
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exports_file = $(SHLIB_EXPORTS:%.txt=%.list)
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ifneq (,$(exports_file))
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LINK.shared += -Wl,-M$(exports_file)
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endif
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endif
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ifeq ($(PORTNAME), cygwin)
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LINK.shared = $(CC) -shared
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ifdef SO_MAJOR_VERSION
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shlib = cyg$(NAME)$(DLSUFFIX)
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endif
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haslibarule = yes
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endif
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ifeq ($(PORTNAME), win32)
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ifdef SO_MAJOR_VERSION
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shlib = lib$(NAME)$(DLSUFFIX)
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endif
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haslibarule = yes
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endif
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# If the shared library doesn't have an export file, mark all symbols not
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# explicitly exported using PGDLLEXPORT as hidden. We can't pass these flags
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# when building a library with explicit exports, as the symbols would be
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# hidden before the linker script / exported symbol list takes effect.
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#
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# This is duplicated in pgxs.mk for MODULES style libraries.
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ifeq ($(SHLIB_EXPORTS),)
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# LDFLAGS_SL addition not strictly needed, CFLAGS used everywhere, but ...
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override LDFLAGS_SL += $(CFLAGS_SL_MODULE)
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override CFLAGS += $(CFLAGS_SL_MODULE)
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override CXXFLAGS += $(CXXFLAGS_SL_MODULE)
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endif
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##
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## BUILD
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##
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.PHONY: all-lib all-static-lib all-shared-lib
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all-lib: all-shared-lib
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ifdef soname
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# no static library when building a dynamically loadable module
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all-lib: all-static-lib
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all-lib: lib$(NAME).pc
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endif
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all-static-lib: $(stlib)
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all-shared-lib: $(shlib)
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# In this rule, "touch $@" works around a problem on some platforms wherein
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# ar updates the library file's mod time with a value calculated to
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# seconds precision. If the filesystem has sub-second timestamps, this can
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# cause the library file to appear older than its input files, triggering
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# parallel-make problems.
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ifndef haslibarule
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$(stlib): $(OBJS) | $(SHLIB_PREREQS)
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rm -f $@
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$(LINK.static) $@ $^
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touch $@
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endif #haslibarule
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ifeq (,$(filter cygwin win32,$(PORTNAME)))
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# Normal case
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$(shlib): $(OBJS) | $(SHLIB_PREREQS)
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$(LINK.shared) -o $@ $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK)
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ifdef shlib_major
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# If we're using major and minor versions, then make a symlink to major-version-only.
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ifneq ($(shlib), $(shlib_major))
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rm -f $(shlib_major)
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$(LN_S) $(shlib) $(shlib_major)
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endif
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# Make sure we have a link to a name without any version numbers
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ifneq ($(shlib), $(shlib_bare))
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rm -f $(shlib_bare)
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$(LN_S) $(shlib) $(shlib_bare)
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endif # shlib_bare
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endif # shlib_major
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# Where possible, restrict the symbols exported by the library to just the
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# official list, so as to avoid unintentional ABI changes. On recent macOS
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# this also quiets multiply-defined-symbol warnings in programs that use
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# libpgport along with libpq.
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ifneq (,$(SHLIB_EXPORTS))
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ifdef BUILD.exports
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$(shlib): $(exports_file)
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$(exports_file): $(SHLIB_EXPORTS)
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$(BUILD.exports)
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endif
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endif
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else # PORTNAME == cygwin || PORTNAME == win32
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ifeq ($(PORTNAME), cygwin)
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# Cygwin case
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$(shlib): $(OBJS) | $(SHLIB_PREREQS)
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$(CC) $(CFLAGS) -shared -o $@ -Wl,--out-implib=$(stlib) $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) $(LDAP_LIBS_BE)
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# see notes in src/backend/parser/Makefile about use of this type of rule
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$(stlib): $(shlib)
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touch $@
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else
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# Win32 case
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# See notes in src/backend/parser/Makefile about the following two rules
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$(stlib): $(shlib)
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touch $@
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# XXX A backend that loads a module linked with libgcc_s_dw2-1.dll will exit
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# uncleanly, hence -static-libgcc. (Last verified with MinGW-w64 compilers
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# from i686-4.9.1-release-win32-dwarf-rt_v3-rev1.) Shared libgcc has better
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# support for C++/Java exceptions; while core PostgreSQL does not use them, it
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# would be nice to support shared libgcc for the benefit of extensions.
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#
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# If SHLIB_EXPORTS is set, the rules below will build a .def file from that.
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# Else we just use --export-all-symbols.
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ifeq (,$(SHLIB_EXPORTS))
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$(shlib): $(OBJS) | $(SHLIB_PREREQS)
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$(CC) $(CFLAGS) -shared -static-libgcc -o $@ $(OBJS) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) -Wl,--export-all-symbols -Wl,--out-implib=$(stlib)
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else
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DLL_DEFFILE = lib$(NAME)dll.def
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$(shlib): $(OBJS) $(DLL_DEFFILE) | $(SHLIB_PREREQS)
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$(CC) $(CFLAGS) -shared -static-libgcc -o $@ $(OBJS) $(DLL_DEFFILE) $(LDFLAGS) $(LDFLAGS_SL) $(SHLIB_LINK) $(LIBS) -Wl,--out-implib=$(stlib)
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UC_NAME = $(shell echo $(NAME) | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')
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$(DLL_DEFFILE): $(SHLIB_EXPORTS)
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echo 'LIBRARY LIB$(UC_NAME).dll' >$@
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echo 'EXPORTS' >>$@
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sed -e '/^#/d' -e 's/^\(.*[ ]\)\([0-9][0-9]*\)/ \1@ \2/' $< >>$@
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endif
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endif # PORTNAME == cygwin
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endif # PORTNAME == cygwin || PORTNAME == win32
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%.pc: $(MAKEFILE_LIST)
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echo 'prefix=$(prefix)' >$@
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echo 'exec_prefix=$(patsubst $(prefix),$${prefix},$(exec_prefix))' >>$@
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echo 'libdir=$(patsubst $(exec_prefix)/%,$${exec_prefix}/%,$(libdir))' >>$@
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echo 'includedir=$(patsubst $(prefix)/%,$${prefix}/%,$(includedir))' >>$@
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echo >>$@
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echo 'Name: lib$(NAME)' >>$@
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echo 'Description: PostgreSQL lib$(NAME) library' >>$@
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echo 'URL: $(PACKAGE_URL)' >>$@
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echo 'Version: $(VERSION)' >>$@
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echo 'Requires: ' >>$@
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echo 'Requires.private: $(PKG_CONFIG_REQUIRES_PRIVATE)' >>$@
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echo 'Cflags: -I$${includedir}' >>$@
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echo 'Libs: -L$${libdir} -l$(NAME)' >>$@
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# Record -L flags that the user might have passed in to the PostgreSQL
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# build to locate third-party libraries (e.g., ldap, ssl). Filter out
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# those that point inside the build or source tree. Use sort to
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# remove duplicates. Also record the -l flags necessary for static
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# linking, but not those already covered by Requires.private.
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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_INTERNAL:%_shlib=%) $(SHLIB_LINK)))' >>$@
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##
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## INSTALL
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##
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.PHONY: install-lib install-lib-static install-lib-shared installdirs-lib
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install-lib: install-lib-shared
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ifdef soname
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install-lib: install-lib-static
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install-lib: install-lib-pc
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endif
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install-lib-pc: lib$(NAME).pc installdirs-lib
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$(INSTALL_DATA) $< '$(DESTDIR)$(pkgconfigdir)/lib$(NAME).pc'
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install-lib-static: $(stlib) installdirs-lib
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$(INSTALL_STLIB) $< '$(DESTDIR)$(libdir)/$(stlib)'
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install-lib-shared: $(shlib) installdirs-lib
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ifdef soname
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$(INSTALL_SHLIB) $< '$(DESTDIR)$(libdir)/$(shlib)'
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ifneq ($(PORTNAME), cygwin)
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ifneq ($(PORTNAME), win32)
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ifneq ($(shlib), $(shlib_major))
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cd '$(DESTDIR)$(libdir)' && \
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rm -f $(shlib_major) && \
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$(LN_S) $(shlib) $(shlib_major)
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endif
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ifneq ($(shlib), $(shlib_bare))
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cd '$(DESTDIR)$(libdir)' && \
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rm -f $(shlib_bare) && \
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$(LN_S) $(shlib) $(shlib_bare)
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endif
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endif # not win32
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endif # not cygwin
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ifneq (,$(findstring $(PORTNAME),win32 cygwin))
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$(INSTALL_SHLIB) $< '$(DESTDIR)$(bindir)/$(shlib)'
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endif
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else # no soname
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$(INSTALL_SHLIB) $< '$(DESTDIR)$(pkglibdir)/$(shlib)'
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endif
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installdirs-lib:
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ifdef soname
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$(MKDIR_P) '$(DESTDIR)$(libdir)' '$(DESTDIR)$(pkgconfigdir)' $(if $(findstring $(PORTNAME),win32 cygwin),'$(DESTDIR)$(bindir)')
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else
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$(MKDIR_P) '$(DESTDIR)$(pkglibdir)'
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endif
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##
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## UNINSTALL
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##
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.PHONY: uninstall-lib
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uninstall-lib:
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ifdef soname
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rm -f '$(DESTDIR)$(libdir)/$(stlib)'
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rm -f '$(DESTDIR)$(libdir)/$(shlib_bare)' \
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'$(DESTDIR)$(libdir)/$(shlib_major)' \
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'$(DESTDIR)$(libdir)/$(shlib)' $(if $(findstring $(PORTNAME),win32 cygwin),'$(DESTDIR)$(bindir)/$(shlib)') \
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'$(DESTDIR)$(pkgconfigdir)/lib$(NAME).pc'
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else # no soname
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rm -f '$(DESTDIR)$(pkglibdir)/$(shlib)'
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endif # no soname
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##
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## CLEAN
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##
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.PHONY: clean-lib
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clean-lib:
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rm -f $(shlib) $(shlib_bare) $(shlib_major) $(stlib) $(exports_file) lib$(NAME).pc
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ifneq (,$(DLL_DEFFILE))
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rm -f $(DLL_DEFFILE)
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endif
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