.gitattributes

+configure.ac ident
+.git*	export-ignore
+/doc/drafts/draft-*.xml	export-ignore

.github/workflows/close-pull-request.yaml

+name: Close Pull Request
+
+on:
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  run:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: superbrothers/close-pull-request@v3
+      with:
+        # Optional. Post a issue comment just before closing a pull request.
+        comment: "We do not accept PRs. Please use the [OpenLDAP Issue Tracker](https://bugs.openldap.org) to file issues."

.gitignore

+# for Unix/Linux
+*~
+*.o
+*.la
+*.lo
+*.so
+*.a
+
+# for MacOS/X
+*.dylib
+*.dSYM
+.DS_Store
+
+# for Windows
+*.exe
+*.obj
+*.dll
+*.exp
+*.pdb
+lib*.lib
+lib*.dll
+resource.RES
+resource.rc
+*_.RES
+*_.rc
+*0000.bin
+*.ilk
+
+# Misc
+*.eml
+*.patch
+*.orig
+*.rej
+*.swp
+
+# For OpenLDAP
+*.tmp
+.libs
+.links
+
+version.c
+
+Makefile
+!/contrib/slapd-modules/*/Makefile
+!/contrib/slapd-modules/*/*/Makefile
+!/doc/guide/admin/Makefile
+!/libraries/libmdb/Makefile
+!/servers/slapd/back-sql/rdbms_depend/timesten/dnreverse/Makefile
+
+/config.status
+/config.log
+/include/stamp-h?
+/libtool
+/stamp-h
+/clients/tools/l*version.c
+/clients/tools/ldapcompare
+/clients/tools/ldapdelete
+/clients/tools/ldapexop
+/clients/tools/ldapmodify
+/clients/tools/ldapmodrdn
+/clients/tools/ldappasswd
+/clients/tools/ldapsearch
+/clients/tools/ldapurl
+/clients/tools/ldapvc
+/clients/tools/ldapwhoami
+/include/lber_types.h
+/include/ldap_config.h
+/include/ldap_features.h
+/include/portable.h
+libraries/libl*/*test
+libraries/libl*/*.pc
+libraries/libldap/testavl
+libraries/liblunicode/ucdata.c
+libraries/liblunicode/ucdata.h
+libraries/liblunicode/ucgendat
+libraries/liblunicode/ucgendat.c
+libraries/liblunicode/uctable.h
+libraries/liblunicode/ure.c
+libraries/liblunicode/ure.h
+libraries/liblunicode/urestubs.c
+libraries/liblunicode/version.c
+libraries/liblutil/slapdmsg.res
+libraries/liblutil/version.c
+libraries/librewrite/rewrite
+libraries/librewrite/version.c
+servers/slapd/.backend
+servers/slapd/all-cffiles
+servers/slapd/backends.c
+servers/slapd/overlays/statover.c
+servers/slapd/slapacl
+servers/slapd/slapadd
+servers/slapd/slapauth
+servers/slapd/slapcat
+servers/slapd/slapd
+servers/slapd/slapdn
+servers/slapd/slapindex
+servers/slapd/slapmodify
+servers/slapd/slappasswd
+servers/slapd/slapschema
+servers/slapd/slaptest
+servers/lloadd/lloadd
+servers/lloadd/Makefile.module
+servers/lloadd/Makefile.server
+tests/progs/ldif-filter
+tests/progs/slapd-addel
+tests/progs/slapd-bind
+tests/progs/slapd-modify
+tests/progs/slapd-modrdn
+tests/progs/slapd-mtread
+tests/progs/slapd-read
+tests/progs/slapd-search
+tests/progs/slapd-tester
+tests/progs/slapd-watcher
+tests/schema
+tests/testdata
+tests/testrun
+tests/run

.gitlab-ci.yml

+workflow:
+  rules:
+    - if: '$CI_COMMIT_REF_NAME == "master" && $CI_PROJECT_NAMESPACE != "openldap"'
+      when: never
+    - if: '$CI_COMMIT_REF_NAME =~ /^OPENLDAP_REL_ENG_/ && $CI_PROJECT_NAMESPACE != "openldap"'
+      when: never
+    - if: '$CI_PIPELINE_SOURCE == "push" && $CI_COMMIT_BRANCH && $CI_OPEN_MERGE_REQUESTS'
+      when: never
+    - when: always
+
+stages:
+  - build
+
+build-no-threads-no-slapd:
+  stage: build
+  script:
+    - export STARTTIME=$(date +%s)
+    - apt update
+    - DEBIAN_FRONTEND=noninteractive apt install -y build-essential autoconf pkg-config groff-base libsasl2-dev libssl-dev
+    - autoreconf
+    - echo "$(date -u -d "now - $STARTTIME sec" +%T) Configuring"
+    - ./configure --without-threads --disable-slapd
+    - make depend
+    - echo "$(date -u -d "now - $STARTTIME sec" +%T) Building"
+    - make
+
+build-openssl-heimdal-lloadd:
+  stage: build
+  script:
+    - export STARTTIME=$(date +%s)
+    - apt update
+    - DEBIAN_FRONTEND=noninteractive apt install -y build-essential python3 gdb procps pkg-config automake libsasl2-dev heimdal-multidev libssl-dev libltdl-dev groff-base unixodbc-dev libwiredtiger-dev libperl-dev heimdal-kdc libsasl2-modules-gssapi-heimdal sasl2-bin libevent-dev libargon2-dev libsystemd-dev
+    - autoreconf
+    - mkdir obj
+    - cd obj
+    - echo "$(date -u -d "now - $STARTTIME sec" +%T) Configuring"
+    - ../configure --enable-backends=mod --enable-overlays=mod --enable-modules --enable-dynamic --enable-balancer=mod --enable-argon2 --with-systemd
+    - make depend
+    - echo "$(date -u -d "now - $STARTTIME sec" +%T) Building"
+    - make
+    - ulimit -n 4096 # back-monitor takes a while scanning a long connections array
+    - SLAPD_COMMON_WRAPPER=gdb make test
+  artifacts:
+    name: testdir
+    when: on_failure
+    expire_in: '1 week'
+    paths:
+      - obj/tests/testrun/
+      - obj/servers/
+      - obj/libraries/
+
+build-gnutls-mit-standalone-lloadd:
+  stage: build
+  script:
+    - export STARTTIME=$(date +%s)
+    - apt update
+    - DEBIAN_FRONTEND=noninteractive apt install -y build-essential python3 gdb procps pkg-config automake libsasl2-dev libltdl-dev groff-base unixodbc-dev libwiredtiger-dev libperl-dev krb5-user krb5-kdc krb5-admin-server libsasl2-modules-gssapi-mit sasl2-bin libgnutls28-dev libevent-dev libargon2-dev libsystemd-dev
+    - autoreconf
+    - mkdir obj
+    - cd obj
+    - echo "$(date -u -d "now - $STARTTIME sec" +%T) Configuring"
+    - ../configure --enable-backends=mod --enable-overlays=mod --disable-autoca --enable-modules --enable-dynamic --enable-balancer=yes --enable-argon2 --with-systemd
+    - make depend
+    - echo "$(date -u -d "now - $STARTTIME sec" +%T) Building"
+    - make
+    - ulimit -n 4096 # back-monitor takes a while scanning a long connections array
+    - SLAPD_COMMON_WRAPPER=gdb make test
+  artifacts:
+    name: testdir
+    when: on_failure
+    expire_in: '1 week'
+    paths:
+      - obj/tests/testrun/
+      - obj/servers/
+      - obj/libraries/
+
+build-mbedtls-mit-standalone-lloadd:
+  image: "debian:testing"
+  stage: build
+  script:
+    - export STARTTIME=$(date +%s)
+    - apt update
+    - DEBIAN_FRONTEND=noninteractive apt install -y build-essential python3 gdb procps pkg-config automake libsasl2-dev libltdl-dev groff-base unixodbc-dev libwiredtiger-dev libperl-dev krb5-user krb5-kdc krb5-admin-server libsasl2-modules-gssapi-mit sasl2-bin libmbedtls-dev libevent-dev libargon2-dev libsystemd-dev
+    - autoreconf
+    - mkdir obj
+    - cd obj
+    - echo "$(date -u -d "now - $STARTTIME sec" +%T) Configuring"
+    - ../configure --with-tls=mbedtls --enable-backends=mod --enable-overlays=mod --disable-autoca --enable-modules --enable-dynamic --enable-balancer=mod --enable-argon2 --with-systemd
+    - make depend
+    - echo "$(date -u -d "now - $STARTTIME sec" +%T) Building"
+    - make
+    - ulimit -n 4096 # back-monitor takes a while scanning a long connections array
+    - SLAPD_COMMON_WRAPPER=gdb make test
+  artifacts:
+    name: testdir
+    when: on_failure
+    expire_in: '1 week'
+    paths:
+      - obj/tests/testrun/
+      - obj/servers/
+      - obj/libraries/

COPYRIGHT

-Copyright 1998-2006 The OpenLDAP Foundation
+Copyright 1998-2024 The OpenLDAP Foundation
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
@@ -25,7 +25,7 @@ Additional information about OpenLDAP can be obtained at
 
 ---
 
-Portions Copyright 1998-2006 Kurt D. Zeilenga.
+Portions Copyright 1998-2013 Kurt D. Zeilenga.
 Portions Copyright 1998-2006 Net Boolean Incorporated.
 Portions Copyright 2001-2006 IBM Corporation.
 All rights reserved.
@@ -36,9 +36,11 @@ Public License.
 
 ---
 
-Portions Copyright 1999-2005 Howard Y.H. Chu.
-Portions Copyright 1999-2005 Symas Corporation.
+Portions Copyright 1999-2008 Howard Y.H. Chu.
+Portions Copyright 1999-2008 Symas Corporation.
 Portions Copyright 1998-2003 Hallvard B. Furuseth.
+Portions Copyright 2007-2011 Gavin Henry.
+Portions Copyright 2007-2011 Suretec Systems Ltd.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

INSTALL

@@ -2,19 +2,13 @@ Making and Installing the OpenLDAP Distribution
 ===============================================
 
 This file provides brief instructions on how to build and install
-OpenLDAP on UNIX (and UNIX-like) system.  More detailed information
+OpenLDAP on UNIX (and UNIX-like) systems.  More detailed information
 and instructions can be found in The OpenLDAP Administrator's Guide
 (available from http://www.openldap.org/doc/).
 
 It is recommended that you read, or at least skim through, ALL of the
 instructions in this file before attempting to build the software.
 
-It is also recommended you review the Frequently Asked Questions
-(http://www.openldap.org/faq/) pages, in particular the Installation
-section (http://www.openldap.org/faq/index.cgi?file=8) and Platform
-Hints (http://www.openldap.org/faq/index.cgi?file=9) should be
-examined.
-
 Making and Installing the OpenLDAP Distribution
 -----------------------------------------------
 
@@ -32,13 +26,13 @@ Making and Installing the OpenLDAP Distribution
 
      to list available configuration options.
 
-     Note also that the configure script uses environmental variables
-     for determining compiler/linker options including:
+     The configure script also looks for compiler/linker options on
+     the command line and in the environment.  These include:
 
         Variable        Description     Example
         CC              C compiler      gcc
         CFLAGS          C flags         -O -g
-        CPPFLAGS        cpp flags       -I/path/include -DFOO=42
+        CPPFLAGS        cpp flags       -I/path/include -D__FOO__=42
         LDFLAGS         ld flags        -L/usr/local/lib
         LIBS            libraries       -llib
         PATH            command path    /usr/local/bin:/usr/bin:/bin
@@ -47,16 +41,15 @@ Making and Installing the OpenLDAP Distribution
 
 3.   Configure the build system:
 
-        % [env settings] ./configure [options]
+        % ./configure [options] [var=value ...]
 
      If all goes well, the configure script will automatically detect
      the appropriate settings.  If the configure script fails, you
      should read the config.log file that it generated to see what it
-     was trying to do and exactly what failed.  You may need to specify
-     additional options and/or environment variables besides those
-     listed above to obtain desired results, depending on your operating
-     system. The Platform Hints section of the FAQ provides help for
-     operating system related problems.
+     was trying to do and exactly what failed.  You may need to
+     specify additional options and/or variables besides those listed
+     above to obtain desired results, depending on your operating
+     system.
 
 4.   Build dependencies:
 
@@ -67,23 +60,20 @@ Making and Installing the OpenLDAP Distribution
         % make
 
      If all goes well, the system will build as configured.  If not,
-     return to step 3 after reviewing the configuration settings.  You
-     may want to consult the Platform Hints subsection of the FAQ if
-     you have not done so already.
+     return to step 3 after reviewing the configuration settings.
 
 6.   Test the standalone system:
 
-     This step requires the standalone LDAP server, slapd(8), with
-     BDB, HDB, and/or LDBM support.
+     This step requires the standalone LDAP server, slapd(8), with MDB
+     support.
 
         % make test
 
      If all goes well, the system has been built as configured.  If
      not, return to step 2 after reviewing your configuration
-     settings.  You may want to consult the Installation section of
-     the FAQ if you have not done so already.
+     settings.
 
-7.   Install the software.  You may need to be come the super-user
+7.   Install the software.  You may need to become the super-user
      (e.g. root) to do this (depending on where you are installing
      things):
 
@@ -99,15 +89,13 @@ configuration directory (normally /usr/local/etc/openldap).
 
         ldap.conf               client defaults
         slapd.conf              Standalone LDAP daemon
+        lload.conf              LDAP Load Balancer daemon
         schema/*.schema         Schema Definitions
 
 ---
-$OpenLDAP: pkg/openldap-guide/release/install.sdf,v 1.16 2002/02/18
-17:09:26 kurt Exp $
-
 This work is part of OpenLDAP Software <http://www.openldap.org/>.
 
-Copyright 1998-2006 The OpenLDAP Foundation.
+Copyright 1998-2024 The OpenLDAP Foundation.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

Makefile.in

@@ -2,7 +2,7 @@
 # $OpenLDAP$
 ## This work is part of OpenLDAP Software <http://www.openldap.org/>.
 ##
-## Copyright 1998-2006 The OpenLDAP Foundation.
+## Copyright 1998-2024 The OpenLDAP Foundation.
 ## All rights reserved.
 ##
 ## Redistribution and use in source and binary forms, with or without
@@ -29,10 +29,10 @@ clean-local: FORCE
 	$(RM) -r autom4te.cache
 
 veryclean-local: FORCE
-	$(RM) config.status libtool stamp-h stamp-h.in
+	$(RM) config.status libtool stamp-h stamp-h.in libraries/libldap/ldap.pc libraries/liblber/lber.pc
 
 distclean: veryclean FORCE
 
 check: test
 test: FORCE
-	cd tests; make test
+	cd tests && $(MAKE) test

README

 OpenLDAP Devel README
-	This software was obtained from the development branch (HEAD) of
-	the OpenLDAP Software Repository.  This copy is likely already
+	This software was obtained from a development branch of the
+	OpenLDAP Software Repository.  This copy is likely already
 	not current, the development branch changes frequently.  These
 	changes include code implementing experimental features and
 	unproven bug fixes.  Please do NOT redistribute copies of the
 	development branch.
 
 	The OpenLDAP Developer's FAQ is available at:
-		http://www.openldap.org/faq/index.cgi?file=4
+		<http://www.openldap.org/faq/index.cgi?file=4>
 
 	Client developers seeking a suitable development platform
 	should use "release" or "stable" versions.
-		http://www.openldap.org/software/
+		<http://www.openldap.org/software/>
 
 Contributing
-
-	See http://www.openldap.org/devel/contributing.html for how to
+	See <http://www.openldap.org/devel/contributing.html> for how to
 	contribute code or documentation to OpenLDAP.  Use the Issue Tracking
 	System <http://www.openldap.org/its/> to submit contributions.
 	While you are encouraged to coordinate and discuss the development
@@ -28,7 +27,7 @@ $OpenLDAP$
 
 This work is part of OpenLDAP Software <http://www.openldap.org/>.
 
-Copyright 1998-2006 The OpenLDAP Foundation.
+Copyright 1998-2024 The OpenLDAP Foundation.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without

build/dir.mk

 # $OpenLDAP$
 ## This work is part of OpenLDAP Software <http://www.openldap.org/>.
 ##
-## Copyright 1998-2006 The OpenLDAP Foundation.
+## Copyright 1998-2024 The OpenLDAP Foundation.
 ## All rights reserved.
 ##
 ## Redistribution and use in source and binary forms, with or without
@@ -21,7 +21,7 @@ all-common: FORCE
 	@echo "Making all in `$(PWD)`"
 	@for i in $(SUBDIRS) $(ALLDIRS); do 		\
 		echo "  Entering subdirectory $$i";		\
-		( cd $$i; $(MAKE) $(MFLAGS) all );		\
+		( cd $$i && $(MAKE) all );		\
 		if test $$? != 0 ; then exit 1; fi ;	\
 		echo " ";								\
 	done
@@ -30,7 +30,7 @@ install-common: FORCE
 	@echo "Making install in `$(PWD)`"
 	@for i in $(SUBDIRS) $(INSTALLDIRS); do 	\
 		echo "  Entering subdirectory $$i";		\
-		( cd $$i; $(MAKE) $(MFLAGS) install );	\
+		( cd $$i && $(MAKE) install );	\
 		if test $$? != 0 ; then exit 1; fi ;	\
 		echo " ";								\
 	done
@@ -39,7 +39,7 @@ clean-common: FORCE
 	@echo "Making clean in `$(PWD)`"
 	@for i in $(SUBDIRS) $(CLEANDIRS); do		\
 		echo "  Entering subdirectory $$i";		\
-		( cd $$i; $(MAKE) $(MFLAGS) clean );	\
+		( cd $$i && $(MAKE) clean );	\
 		if test $$? != 0 ; then exit 1; fi ;	\
 		echo " ";								\
 	done
@@ -48,7 +48,7 @@ veryclean-common: FORCE
 	@echo "Making veryclean in `$(PWD)`"
 	@for i in $(SUBDIRS) $(CLEANDIRS); do		\
 		echo "  Entering subdirectory $$i";		\
-		( cd $$i; $(MAKE) $(MFLAGS) veryclean );	\
+		( cd $$i && $(MAKE) veryclean );	\
 		if test $$? != 0 ; then exit 1; fi ;	\
 		echo " ";								\
 	done
@@ -57,7 +57,7 @@ depend-common: FORCE
 	@echo "Making depend in `$(PWD)`"
 	@for i in $(SUBDIRS) $(DEPENDDIRS); do		\
 		echo "  Entering subdirectory $$i";		\
-		( cd $$i; $(MAKE) $(MFLAGS) depend );	\
+		( cd $$i && $(MAKE) depend );	\
 		if test $$? != 0 ; then exit 1; fi ;	\
 		echo " ";								\
 	done

build/info.mk

 # $OpenLDAP$
 ## This work is part of OpenLDAP Software <http://www.openldap.org/>.
 ##
-## Copyright 1998-2006 The OpenLDAP Foundation.
+## Copyright 1998-2024 The OpenLDAP Foundation.
 ## All rights reserved.
 ##
 ## Redistribution and use in source and binary forms, with or without

build/lib-shared.mk

 # $OpenLDAP$
 ## This work is part of OpenLDAP Software <http://www.openldap.org/>.
 ##
-## Copyright 1998-2006 The OpenLDAP Foundation.
+## Copyright 1998-2024 The OpenLDAP Foundation.
 ## All rights reserved.
 ##
 ## Redistribution and use in source and binary forms, with or without

build/lib-static.mk

 # $OpenLDAP$
 ## This work is part of OpenLDAP Software <http://www.openldap.org/>.
 ##
-## Copyright 1998-2006 The OpenLDAP Foundation.
+## Copyright 1998-2024 The OpenLDAP Foundation.
 ## All rights reserved.
 ##
 ## Redistribution and use in source and binary forms, with or without

build/lib.mk

 # $OpenLDAP$
 ## This work is part of OpenLDAP Software <http://www.openldap.org/>.
 ##
-## Copyright 1998-2006 The OpenLDAP Foundation.
+## Copyright 1998-2024 The OpenLDAP Foundation.
 ## All rights reserved.
 ##
 ## Redistribution and use in source and binary forms, with or without
@@ -40,9 +40,7 @@ lint5: lint5-local FORCE
 clean-common: 	FORCE
 	$(RM) $(LIBRARY) ../$(LIBRARY) $(XLIBRARY) \
 		$(PROGRAMS) $(XPROGRAMS) $(XSRCS) $(XXSRCS) \
-		*.o *.lo a.out *.exe core version.c .libs/* \
-		../`$(BASENAME) $(LIBRARY) .la`.so* \
-		../`$(BASENAME) $(LIBRARY) .la`*.dll
+		*.o *.lo a.out *.exe core version.c .libs/*
 
 depend-common: FORCE
 	$(MKDEP) $(DEFS) $(DEFINES) $(SRCS) $(XXSRCS)

build/ltoptions.m4

+# Helper functions for option handling.                    -*- Autoconf -*-
+#
+#   Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software
+#   Foundation, Inc.
+#   Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 8 ltoptions.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
+
+
+# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
+# ------------------------------------------
+m4_define([_LT_MANGLE_OPTION],
+[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
+
+
+# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
+# ---------------------------------------
+# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
+# matching handler defined, dispatch to it.  Other OPTION-NAMEs are
+# saved as a flag.
+m4_define([_LT_SET_OPTION],
+[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
+m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
+        _LT_MANGLE_DEFUN([$1], [$2]),
+    [m4_warning([Unknown $1 option '$2'])])[]dnl
+])
+
+
+# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
+# ------------------------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+m4_define([_LT_IF_OPTION],
+[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
+
+
+# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
+# -------------------------------------------------------
+# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
+# are set.
+m4_define([_LT_UNLESS_OPTIONS],
+[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+	    [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
+		      [m4_define([$0_found])])])[]dnl
+m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
+])[]dnl
+])
+
+
+# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
+# ----------------------------------------
+# OPTION-LIST is a space-separated list of Libtool options associated
+# with MACRO-NAME.  If any OPTION has a matching handler declared with
+# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
+# the unknown option and exit.
+m4_defun([_LT_SET_OPTIONS],
+[# Set options
+m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+    [_LT_SET_OPTION([$1], _LT_Option)])
+
+m4_if([$1],[LT_INIT],[
+  dnl
+  dnl Simply set some default values (i.e off) if boolean options were not
+  dnl specified:
+  _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
+  ])
+  _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
+  ])
+  dnl
+  dnl If no reference was made to various pairs of opposing options, then
+  dnl we run the default mode handler for the pair.  For example, if neither
+  dnl 'shared' nor 'disable-shared' was passed, we enable building of shared
+  dnl archives by default:
+  _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
+  _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
+  _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
+		   [_LT_ENABLE_FAST_INSTALL])
+  _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4],
+		   [_LT_WITH_AIX_SONAME([aix])])
+  ])
+])# _LT_SET_OPTIONS
+
+
+## --------------------------------- ##
+## Macros to handle LT_INIT options. ##
+## --------------------------------- ##
+
+# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
+# -----------------------------------------
+m4_define([_LT_MANGLE_DEFUN],
+[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
+
+
+# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
+# -----------------------------------------------
+m4_define([LT_OPTION_DEFINE],
+[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
+])# LT_OPTION_DEFINE
+
+
+# dlopen
+# ------
+LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
+])
+
+AU_DEFUN([AC_LIBTOOL_DLOPEN],
+[_LT_SET_OPTION([LT_INIT], [dlopen])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'dlopen' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
+
+
+# win32-dll
+# ---------
+# Declare package support for building win32 dll's.
+LT_OPTION_DEFINE([LT_INIT], [win32-dll],
+[enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+  AC_CHECK_TOOL(AS, as, false)
+  AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+  AC_CHECK_TOOL(OBJDUMP, objdump, false)
+  ;;
+esac
+
+test -z "$AS" && AS=as
+_LT_DECL([], [AS],      [1], [Assembler program])dnl
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
+])# win32-dll
+
+AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+_LT_SET_OPTION([LT_INIT], [win32-dll])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'win32-dll' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
+
+
+# _LT_ENABLE_SHARED([DEFAULT])
+# ----------------------------
+# implement the --enable-shared flag, and supports the 'shared' and
+# 'disable-shared' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_SHARED],
+[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([shared],
+    [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
+	[build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_shared=yes ;;
+    no) enable_shared=no ;;
+    *)
+      enable_shared=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_shared=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
+
+    _LT_DECL([build_libtool_libs], [enable_shared], [0],
+	[Whether or not to build shared libraries])
+])# _LT_ENABLE_SHARED
+
+LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
+])
+
+AC_DEFUN([AC_DISABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], [disable-shared])
+])
+
+AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
+AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_SHARED], [])
+dnl AC_DEFUN([AM_DISABLE_SHARED], [])
+
+
+
+# _LT_ENABLE_STATIC([DEFAULT])
+# ----------------------------
+# implement the --enable-static flag, and support the 'static' and
+# 'disable-static' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_STATIC],
+[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([static],
+    [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
+	[build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
+
+    _LT_DECL([build_old_libs], [enable_static], [0],
+	[Whether or not to build static libraries])
+])# _LT_ENABLE_STATIC
+
+LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
+])
+
+AC_DEFUN([AC_DISABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], [disable-static])
+])
+
+AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
+AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_STATIC], [])
+dnl AC_DEFUN([AM_DISABLE_STATIC], [])
+
+
+
+# _LT_ENABLE_FAST_INSTALL([DEFAULT])
+# ----------------------------------
+# implement the --enable-fast-install flag, and support the 'fast-install'
+# and 'disable-fast-install' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'.  If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_FAST_INSTALL],
+[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([fast-install],
+    [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
+    [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
+    [p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_fast_install=yes ;;
+    no) enable_fast_install=no ;;
+    *)
+      enable_fast_install=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for pkg in $enableval; do
+	IFS=$lt_save_ifs
+	if test "X$pkg" = "X$p"; then
+	  enable_fast_install=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
+
+_LT_DECL([fast_install], [enable_fast_install], [0],
+	 [Whether or not to optimize for fast installation])dnl
+])# _LT_ENABLE_FAST_INSTALL
+
+LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
+
+# Old names:
+AU_DEFUN([AC_ENABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the 'fast-install' option into LT_INIT's first parameter.])
+])
+
+AU_DEFUN([AC_DISABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the 'disable-fast-install' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
+dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
+
+
+# _LT_WITH_AIX_SONAME([DEFAULT])
+# ----------------------------------
+# implement the --with-aix-soname flag, and support the `aix-soname=aix'
+# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT
+# is either `aix', `both' or `svr4'.  If omitted, it defaults to `aix'.
+m4_define([_LT_WITH_AIX_SONAME],
+[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl
+shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[[5-9]]*,yes)
+  AC_MSG_CHECKING([which variant of shared library versioning to provide])
+  AC_ARG_WITH([aix-soname],
+    [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
+      [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])],
+    [case $withval in
+    aix|svr4|both)
+      ;;
+    *)
+      AC_MSG_ERROR([Unknown argument to --with-aix-soname])
+      ;;
+    esac
+    lt_cv_with_aix_soname=$with_aix_soname],
+    [AC_CACHE_VAL([lt_cv_with_aix_soname],
+      [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT)
+    with_aix_soname=$lt_cv_with_aix_soname])
+  AC_MSG_RESULT([$with_aix_soname])
+  if test aix != "$with_aix_soname"; then
+    # For the AIX way of multilib, we name the shared archive member
+    # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+    # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+    # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+    # the AIX toolchain works better with OBJECT_MODE set (default 32).
+    if test 64 = "${OBJECT_MODE-32}"; then
+      shared_archive_member_spec=shr_64
+    else
+      shared_archive_member_spec=shr
+    fi
+  fi
+  ;;
+*)
+  with_aix_soname=aix
+  ;;
+esac
+
+_LT_DECL([], [shared_archive_member_spec], [0],
+    [Shared archive member basename, for filename based shared library versioning on AIX])dnl
+])# _LT_WITH_AIX_SONAME
+
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])])
+
+
+# _LT_WITH_PIC([MODE])
+# --------------------
+# implement the --with-pic flag, and support the 'pic-only' and 'no-pic'
+# LT_INIT options.
+# MODE is either 'yes' or 'no'.  If omitted, it defaults to 'both'.
+m4_define([_LT_WITH_PIC],
+[AC_ARG_WITH([pic],
+    [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
+	[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
+    [lt_p=${PACKAGE-default}
+    case $withval in
+    yes|no) pic_mode=$withval ;;
+    *)
+      pic_mode=default
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+      for lt_pkg in $withval; do
+	IFS=$lt_save_ifs
+	if test "X$lt_pkg" = "X$lt_p"; then
+	  pic_mode=yes
+	fi
+      done
+      IFS=$lt_save_ifs
+      ;;
+    esac],
+    [pic_mode=m4_default([$1], [default])])
+
+_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
+])# _LT_WITH_PIC
+
+LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
+
+# Old name:
+AU_DEFUN([AC_LIBTOOL_PICMODE],
+[_LT_SET_OPTION([LT_INIT], [pic-only])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'pic-only' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
+
+## ----------------- ##
+## LTDL_INIT Options ##
+## ----------------- ##
+
+m4_define([_LTDL_MODE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
+		 [m4_define([_LTDL_MODE], [nonrecursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [recursive],
+		 [m4_define([_LTDL_MODE], [recursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [subproject],
+		 [m4_define([_LTDL_MODE], [subproject])])
+
+m4_define([_LTDL_TYPE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [installable],
+		 [m4_define([_LTDL_TYPE], [installable])])
+LT_OPTION_DEFINE([LTDL_INIT], [convenience],
+		 [m4_define([_LTDL_TYPE], [convenience])])

build/ltsugar.m4

+# ltsugar.m4 -- libtool m4 base layer.                         -*-Autoconf-*-
+#
+# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
+# Foundation, Inc.
+# Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 6 ltsugar.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
+
+
+# lt_join(SEP, ARG1, [ARG2...])
+# -----------------------------
+# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
+# associated separator.
+# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
+# versions in m4sugar had bugs.
+m4_define([lt_join],
+[m4_if([$#], [1], [],
+       [$#], [2], [[$2]],
+       [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
+m4_define([_lt_join],
+[m4_if([$#$2], [2], [],
+       [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
+
+
+# lt_car(LIST)
+# lt_cdr(LIST)
+# ------------
+# Manipulate m4 lists.
+# These macros are necessary as long as will still need to support
+# Autoconf-2.59, which quotes differently.
+m4_define([lt_car], [[$1]])
+m4_define([lt_cdr],
+[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
+       [$#], 1, [],
+       [m4_dquote(m4_shift($@))])])
+m4_define([lt_unquote], $1)
+
+
+# lt_append(MACRO-NAME, STRING, [SEPARATOR])
+# ------------------------------------------
+# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
+# Note that neither SEPARATOR nor STRING are expanded; they are appended
+# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
+# No SEPARATOR is output if MACRO-NAME was previously undefined (different
+# than defined and empty).
+#
+# This macro is needed until we can rely on Autoconf 2.62, since earlier
+# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
+m4_define([lt_append],
+[m4_define([$1],
+	   m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
+
+
+
+# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
+# ----------------------------------------------------------
+# Produce a SEP delimited list of all paired combinations of elements of
+# PREFIX-LIST with SUFFIX1 through SUFFIXn.  Each element of the list
+# has the form PREFIXmINFIXSUFFIXn.
+# Needed until we can rely on m4_combine added in Autoconf 2.62.
+m4_define([lt_combine],
+[m4_if(m4_eval([$# > 3]), [1],
+       [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
+[[m4_foreach([_Lt_prefix], [$2],
+	     [m4_foreach([_Lt_suffix],
+		]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
+	[_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
+
+
+# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
+# -----------------------------------------------------------------------
+# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
+# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
+m4_define([lt_if_append_uniq],
+[m4_ifdef([$1],
+	  [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
+		 [lt_append([$1], [$2], [$3])$4],
+		 [$5])],
+	  [lt_append([$1], [$2], [$3])$4])])
+
+
+# lt_dict_add(DICT, KEY, VALUE)
+# -----------------------------
+m4_define([lt_dict_add],
+[m4_define([$1($2)], [$3])])
+
+
+# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
+# --------------------------------------------
+m4_define([lt_dict_add_subkey],
+[m4_define([$1($2:$3)], [$4])])
+
+
+# lt_dict_fetch(DICT, KEY, [SUBKEY])
+# ----------------------------------
+m4_define([lt_dict_fetch],
+[m4_ifval([$3],
+	m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
+    m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
+
+
+# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
+# -----------------------------------------------------------------
+m4_define([lt_if_dict_fetch],
+[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
+	[$5],
+    [$6])])
+
+
+# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
+# --------------------------------------------------------------
+m4_define([lt_dict_filter],
+[m4_if([$5], [], [],
+  [lt_join(m4_quote(m4_default([$4], [[, ]])),
+           lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
+		      [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
+])