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  • Magnus Hagander's avatar
    6da56f3f
    Remove support for bcc and msvc standalone libpq builds · 6da56f3f
    Magnus Hagander authored 
    This removes the support for building just libpq using Borland C++ or
Visual C++. This has not worked properly for years, and given the number
of complaints it's clearly not worth the maintenance burden.

Building libpq using the standard MSVC build system is of course still
supported, along with mingw.
    6da56f3f
    History
    Remove support for bcc and msvc standalone libpq builds
    Magnus Hagander authored 
    This removes the support for building just libpq using Borland C++ or
Visual C++. This has not worked properly for years, and given the number
of complaints it's clearly not worth the maintenance burden.

Building libpq using the standard MSVC build system is of course still
supported, along with mingw.
Makefile.shlib 15.45 KiB 
#-------------------------------------------------------------------------
#
# 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".)
#
# 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)



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
  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	+= +s +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), 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)

ifndef haslibarule
$(stlib): $(OBJS) | $(SHLIB_PREREQS)
	rm -f $@
	$(LINK.static) $@ $^
	$(RANLIB) $@
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 macOS
# 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) $(shlib) >$(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

# 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) ;

# 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

UC_NAME = $(shell echo $(NAME) | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ')

lib$(NAME)dll.def: $(SHLIB_EXPORTS)
	echo '; DEF file for Makefile.shlib (MinGW)' >$@
	echo 'LIBRARY LIB$(UC_NAME).dll' >>$@
	echo 'EXPORTS' >>$@
	sed -e '/^#/d' -e 's/^\(.*[ 	]\)\([0-9][0-9]*\)/    \1@ \2/' $< >>$@

lib$(NAME)ddll.def: $(SHLIB_EXPORTS)
	echo '; DEF file for Makefile.shlib (MinGW)' >$@
	echo 'LIBRARY LIB$(UC_NAME)D.dll' >>$@
	echo 'EXPORTS' >>$@
	sed -e '/^#/d' -e 's/^\(.*[ 	]\)\([0-9][0-9]*\)/    \1@ \2/' $< >>$@

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
endif