build: Remove version script

CMakeLists.txt

@@ -16,7 +16,6 @@ include(CheckCSourceCompiles)
 include(CheckFunctionExists)
 include(CheckIncludeFiles)
 include(CheckLibraryExists)
-include(CheckLinkerFlag)
 include(CheckStructHasMember)
 include(CheckSymbolExists)
 include(CMakeDependentOption)
@@ -403,14 +402,6 @@ if(CMAKE_C_COMPILER_ID MATCHES "Clang" OR CMAKE_C_COMPILER_ID STREQUAL "GNU")
 -Wpointer-arith -Wcast-align -Wwrite-strings \
 -Wstrict-prototypes -Wmissing-prototypes \
 -Wno-long-long -Wno-format-extra-args -Wno-array-bounds")
-
-    if(LIBXML2_WITH_LEGACY AND BUILD_SHARED_LIBS AND UNIX AND NOT APPLE)
-        check_linker_flag(C "LINKER:--undefined-version" FLAG_UNDEFINED_VERSION)
-        if (FLAG_UNDEFINED_VERSION)
-            target_link_options(LibXml2 PRIVATE "LINKER:--undefined-version")
-        endif()
-        target_link_options(LibXml2 PRIVATE "LINKER:--version-script=${CMAKE_CURRENT_SOURCE_DIR}/libxml2.syms")
-    endif()
 endif()
 
 set(LIBXML_MINOR_COMPAT 0)

Makefile.am

@@ -36,9 +36,6 @@ libxml2_la_LIBADD = $(XML_PRIVATE_LIBS)
 
 libxml2_la_LDFLAGS = $(AM_LDFLAGS) -no-undefined \
 		     -version-info $(LIBXML_VERSION_INFO)
-if USE_VERSION_SCRIPT
-libxml2_la_LDFLAGS += $(VERSION_SCRIPT_FLAGS)$(srcdir)/libxml2.syms
-endif
 
 libxml2_la_SOURCES = buf.c chvalid.c dict.c entities.c encoding.c error.c \
 		     globals.c hash.c list.c parser.c parserInternals.c \
@@ -213,7 +210,7 @@ EXTRA_DIST = Copyright libxml2-config.cmake.in autogen.sh \
 	     html5ent.inc iso8859x.inc \
 	     tools/gentest.py \
 	     tools/genChRanges.py tools/genEscape.py tools/genUnicode.py \
-	     libxml2.syms timsort.h \
+	     timsort.h \
 	     README.zOS README.md \
 	     CMakeLists.txt config.h.cmake.in libxml2-config.cmake.cmake.in \
 	     meson.build meson_options.txt

configure.ac

@@ -359,33 +359,6 @@ if test "$with_tls" = "yes"; then
     ])])])
 fi
 
-dnl
-dnl Linker version scripts for symbol versioning
-dnl
-VERSION_SCRIPT_FLAGS=
-if test "$with_legacy" = "yes"; then
-    # lt_cv_prog_gnu_ld is from libtool 2.+
-    if test "$lt_cv_prog_gnu_ld" = yes; then
-        case $host in
-            *-*-cygwin* | *-*-mingw* | *-*-msys* )
-                ;;
-            *)
-                dnl lld 16 defaults to --no-undefined-version but the version
-                dnl script can contain symbols disabled by configuration
-                dnl options.
-                AX_APPEND_LINK_FLAGS([-Wl,--undefined-version], [VERSION_SCRIPT_FLAGS])
-                AX_APPEND_FLAG([-Wl,--version-script=], [VERSION_SCRIPT_FLAGS])
-                ;;
-        esac
-    else
-        case $host in
-        *-*-sunos*) VERSION_SCRIPT_FLAGS="-Wl,-M -Wl,";;
-        esac
-    fi
-    AC_SUBST(VERSION_SCRIPT_FLAGS)
-fi
-AM_CONDITIONAL([USE_VERSION_SCRIPT], [test -n "$VERSION_SCRIPT_FLAGS"])
-
 dnl
 dnl Workaround for native compilers
 dnl  HP  : http://bugs.gnome.org/db/31/3163.html

m4/ax_append_flag.m4

@@ -1,50 +0,0 @@
-# ===========================================================================
-#      https://www.gnu.org/software/autoconf-archive/ax_append_flag.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_APPEND_FLAG(FLAG, [FLAGS-VARIABLE])
-#
-# DESCRIPTION
-#
-#   FLAG is appended to the FLAGS-VARIABLE shell variable, with a space
-#   added in between.
-#
-#   If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
-#   CFLAGS) is used.  FLAGS-VARIABLE is not changed if it already contains
-#   FLAG.  If FLAGS-VARIABLE is unset in the shell, it is set to exactly
-#   FLAG.
-#
-#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
-#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
-#
-#   Copying and distribution of this file, with or without modification, are
-#   permitted in any medium without royalty provided the copyright notice
-#   and this notice are preserved.  This file is offered as-is, without any
-#   warranty.
-
-#serial 8
-
-AC_DEFUN([AX_APPEND_FLAG],
-[dnl
-AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_SET_IF
-AS_VAR_PUSHDEF([FLAGS], [m4_default($2,_AC_LANG_PREFIX[FLAGS])])
-AS_VAR_SET_IF(FLAGS,[
-  AS_CASE([" AS_VAR_GET(FLAGS) "],
-    [*" $1 "*], [AC_RUN_LOG([: FLAGS already contains $1])],
-    [
-     AS_VAR_APPEND(FLAGS,[" $1"])
-     AC_RUN_LOG([: FLAGS="$FLAGS"])
-    ])
-  ],
-  [
-  AS_VAR_SET(FLAGS,[$1])
-  AC_RUN_LOG([: FLAGS="$FLAGS"])
-  ])
-AS_VAR_POPDEF([FLAGS])dnl
-])dnl AX_APPEND_FLAG

m4/ax_append_link_flags.m4

@@ -1,44 +0,0 @@
-# ===========================================================================
-#   https://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS], [INPUT])
-#
-# DESCRIPTION
-#
-#   For every FLAG1, FLAG2 it is checked whether the linker works with the
-#   flag.  If it does, the flag is added FLAGS-VARIABLE
-#
-#   If FLAGS-VARIABLE is not specified, the linker's flags (LDFLAGS) is
-#   used. During the check the flag is always added to the linker's flags.
-#
-#   If EXTRA-FLAGS is defined, it is added to the linker's default flags
-#   when the check is done.  The check is thus made with the flags: "LDFLAGS
-#   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
-#   issue an error when a bad flag is given.
-#
-#   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
-#
-#   NOTE: This macro depends on the AX_APPEND_FLAG and AX_CHECK_LINK_FLAG.
-#   Please keep this macro in sync with AX_APPEND_COMPILE_FLAGS.
-#
-# LICENSE
-#
-#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
-#
-#   Copying and distribution of this file, with or without modification, are
-#   permitted in any medium without royalty provided the copyright notice
-#   and this notice are preserved.  This file is offered as-is, without any
-#   warranty.
-
-#serial 7
-
-AC_DEFUN([AX_APPEND_LINK_FLAGS],
-[AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
-AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
-for flag in $1; do
-  AX_CHECK_LINK_FLAG([$flag], [AX_APPEND_FLAG([$flag], [m4_default([$2], [LDFLAGS])])], [], [$3], [$4])
-done
-])dnl AX_APPEND_LINK_FLAGS

m4/ax_check_link_flag.m4

@@ -1,53 +0,0 @@
-# ===========================================================================
-#    https://www.gnu.org/software/autoconf-archive/ax_check_link_flag.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CHECK_LINK_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
-#
-# DESCRIPTION
-#
-#   Check whether the given FLAG works with the linker or gives an error.
-#   (Warnings, however, are ignored)
-#
-#   ACTION-SUCCESS/ACTION-FAILURE are shell commands to execute on
-#   success/failure.
-#
-#   If EXTRA-FLAGS is defined, it is added to the linker's default flags
-#   when the check is done.  The check is thus made with the flags: "LDFLAGS
-#   EXTRA-FLAGS FLAG".  This can for example be used to force the linker to
-#   issue an error when a bad flag is given.
-#
-#   INPUT gives an alternative input source to AC_LINK_IFELSE.
-#
-#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
-#   macro in sync with AX_CHECK_{PREPROC,COMPILE}_FLAG.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
-#   Copyright (c) 2011 Maarten Bosmans <mkbosmans@gmail.com>
-#
-#   Copying and distribution of this file, with or without modification, are
-#   permitted in any medium without royalty provided the copyright notice
-#   and this notice are preserved.  This file is offered as-is, without any
-#   warranty.
-
-#serial 6
-
-AC_DEFUN([AX_CHECK_LINK_FLAG],
-[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
-AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_ldflags_$4_$1])dnl
-AC_CACHE_CHECK([whether the linker accepts $1], CACHEVAR, [
-  ax_check_save_flags=$LDFLAGS
-  LDFLAGS="$LDFLAGS $4 $1"
-  AC_LINK_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
-    [AS_VAR_SET(CACHEVAR,[yes])],
-    [AS_VAR_SET(CACHEVAR,[no])])
-  LDFLAGS=$ax_check_save_flags])
-AS_VAR_IF(CACHEVAR,yes,
-  [m4_default([$2], :)],
-  [m4_default([$3], :)])
-AS_VAR_POPDEF([CACHEVAR])dnl
-])dnl AX_CHECK_LINK_FLAGS

m4/ax_require_defined.m4

@@ -1,37 +0,0 @@
-# ===========================================================================
-#    https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_REQUIRE_DEFINED(MACRO)
-#
-# DESCRIPTION
-#
-#   AX_REQUIRE_DEFINED is a simple helper for making sure other macros have
-#   been defined and thus are available for use.  This avoids random issues
-#   where a macro isn't expanded.  Instead the configure script emits a
-#   non-fatal:
-#
-#     ./configure: line 1673: AX_CFLAGS_WARN_ALL: command not found
-#
-#   It's like AC_REQUIRE except it doesn't expand the required macro.
-#
-#   Here's an example:
-#
-#     AX_REQUIRE_DEFINED([AX_CHECK_LINK_FLAG])
-#
-# LICENSE
-#
-#   Copyright (c) 2014 Mike Frysinger <vapier@gentoo.org>
-#
-#   Copying and distribution of this file, with or without modification, are
-#   permitted in any medium without royalty provided the copyright notice
-#   and this notice are preserved. This file is offered as-is, without any
-#   warranty.
-
-#serial 2
-
-AC_DEFUN([AX_REQUIRE_DEFINED], [dnl
-  m4_ifndef([$1], [m4_fatal([macro ]$1[ is not defined; is a m4 file missing?])])
-])dnl AX_REQUIRE_DEFINED