[Spice-devel] [PATCH libcacard 03/45] Remove the old m4 macros

Jakub Jelen jjelen at redhat.com
Tue Jul 31 14:49:57 UTC 2018


Signed-off-by: Jakub Jelen <jjelen at redhat.com>
Reviewed-by: Robert Relyea <rrelyea at redhat.com>
---
 m4/ax_append_compile_flags.m4   |  65 ---------
 m4/ax_append_flag.m4            |  71 ----------
 m4/ax_append_link_flags.m4      |  63 ---------
 m4/ax_check_compile_flag.m4     |  74 -----------
 m4/ax_check_enable_debug.m4     | 124 -----------------
 m4/ax_check_link_flag.m4        |  74 -----------
 m4/ax_code_coverage.m4          | 229 --------------------------------
 m4/ax_compiler_flags.m4         | 158 ----------------------
 m4/ax_compiler_flags_cflags.m4  | 133 -------------------
 m4/ax_compiler_flags_gir.m4     |  60 ---------
 m4/ax_compiler_flags_ldflags.m4 |  75 -----------
 m4/ax_is_release.m4             |  69 ----------
 m4/ax_require_defined.m4        |  37 ------
 13 files changed, 1232 deletions(-)
 delete mode 100644 m4/ax_append_compile_flags.m4
 delete mode 100644 m4/ax_append_flag.m4
 delete mode 100644 m4/ax_append_link_flags.m4
 delete mode 100644 m4/ax_check_compile_flag.m4
 delete mode 100644 m4/ax_check_enable_debug.m4
 delete mode 100644 m4/ax_check_link_flag.m4
 delete mode 100644 m4/ax_code_coverage.m4
 delete mode 100644 m4/ax_compiler_flags.m4
 delete mode 100644 m4/ax_compiler_flags_cflags.m4
 delete mode 100644 m4/ax_compiler_flags_gir.m4
 delete mode 100644 m4/ax_compiler_flags_ldflags.m4
 delete mode 100644 m4/ax_is_release.m4
 delete mode 100644 m4/ax_require_defined.m4

diff --git a/m4/ax_append_compile_flags.m4 b/m4/ax_append_compile_flags.m4
deleted file mode 100644
index dc7b866..0000000
--- a/m4/ax_append_compile_flags.m4
+++ /dev/null
@@ -1,65 +0,0 @@
-# ===========================================================================
-#  http://www.gnu.org/software/autoconf-archive/ax_append_compile_flags.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_APPEND_COMPILE_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS])
-#
-# DESCRIPTION
-#
-#   For every FLAG1, FLAG2 it is checked whether the compiler works with the
-#   flag.  If it does, the flag is added FLAGS-VARIABLE
-#
-#   If FLAGS-VARIABLE is not specified, the current language's flags (e.g.
-#   CFLAGS) is used.  During the check the flag is always added to the
-#   current language's flags.
-#
-#   If EXTRA-FLAGS is defined, it is added to the current language's default
-#   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
-#   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
-#   force the compiler to issue an error when a bad flag is given.
-#
-#   NOTE: This macro depends on the AX_APPEND_FLAG and
-#   AX_CHECK_COMPILE_FLAG. Please keep this macro in sync with
-#   AX_APPEND_LINK_FLAGS.
-#
-# LICENSE
-#
-#   Copyright (c) 2011 Maarten Bosmans <mkbosmans at gmail.com>
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 4
-
-AC_DEFUN([AX_APPEND_COMPILE_FLAGS],
-[AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
-AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
-for flag in $1; do
-  AX_CHECK_COMPILE_FLAG([$flag], [AX_APPEND_FLAG([$flag], [$2])], [], [$3])
-done
-])dnl AX_APPEND_COMPILE_FLAGS
diff --git a/m4/ax_append_flag.m4 b/m4/ax_append_flag.m4
deleted file mode 100644
index 08f2e07..0000000
--- a/m4/ax_append_flag.m4
+++ /dev/null
@@ -1,71 +0,0 @@
-# ===========================================================================
-#      http://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 at gmx.de>
-#   Copyright (c) 2011 Maarten Bosmans <mkbosmans at gmail.com>
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 6
-
-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
diff --git a/m4/ax_append_link_flags.m4 b/m4/ax_append_link_flags.m4
deleted file mode 100644
index c73ddaf..0000000
--- a/m4/ax_append_link_flags.m4
+++ /dev/null
@@ -1,63 +0,0 @@
-# ===========================================================================
-#   http://www.gnu.org/software/autoconf-archive/ax_append_link_flags.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_APPEND_LINK_FLAGS([FLAG1 FLAG2 ...], [FLAGS-VARIABLE], [EXTRA-FLAGS])
-#
-# 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.
-#
-#   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 at gmail.com>
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 4
-
-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])
-done
-])dnl AX_APPEND_LINK_FLAGS
diff --git a/m4/ax_check_compile_flag.m4 b/m4/ax_check_compile_flag.m4
deleted file mode 100644
index ca36397..0000000
--- a/m4/ax_check_compile_flag.m4
+++ /dev/null
@@ -1,74 +0,0 @@
-# ===========================================================================
-#   http://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CHECK_COMPILE_FLAG(FLAG, [ACTION-SUCCESS], [ACTION-FAILURE], [EXTRA-FLAGS], [INPUT])
-#
-# DESCRIPTION
-#
-#   Check whether the given FLAG works with the current language's compiler
-#   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 current language's default
-#   flags (e.g. CFLAGS) when the check is done.  The check is thus made with
-#   the flags: "CFLAGS EXTRA-FLAGS FLAG".  This can for example be used to
-#   force the compiler to issue an error when a bad flag is given.
-#
-#   INPUT gives an alternative input source to AC_COMPILE_IFELSE.
-#
-#   NOTE: Implementation based on AX_CFLAGS_GCC_OPTION. Please keep this
-#   macro in sync with AX_CHECK_{PREPROC,LINK}_FLAG.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Guido U. Draheim <guidod at gmx.de>
-#   Copyright (c) 2011 Maarten Bosmans <mkbosmans at gmail.com>
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 4
-
-AC_DEFUN([AX_CHECK_COMPILE_FLAG],
-[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
-AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
-AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
-  ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
-  _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
-  AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
-    [AS_VAR_SET(CACHEVAR,[yes])],
-    [AS_VAR_SET(CACHEVAR,[no])])
-  _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
-AS_VAR_IF(CACHEVAR,yes,
-  [m4_default([$2], :)],
-  [m4_default([$3], :)])
-AS_VAR_POPDEF([CACHEVAR])dnl
-])dnl AX_CHECK_COMPILE_FLAGS
diff --git a/m4/ax_check_enable_debug.m4 b/m4/ax_check_enable_debug.m4
deleted file mode 100644
index f99d75f..0000000
--- a/m4/ax_check_enable_debug.m4
+++ /dev/null
@@ -1,124 +0,0 @@
-# ===========================================================================
-#   http://www.gnu.org/software/autoconf-archive/ax_check_enable_debug.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CHECK_ENABLE_DEBUG([enable by default=yes/info/profile/no], [ENABLE DEBUG VARIABLES ...], [DISABLE DEBUG VARIABLES NDEBUG ...], [IS-RELEASE])
-#
-# DESCRIPTION
-#
-#   Check for the presence of an --enable-debug option to configure, with
-#   the specified default value used when the option is not present.  Return
-#   the value in the variable $ax_enable_debug.
-#
-#   Specifying 'yes' adds '-g -O0' to the compilation flags for all
-#   languages. Specifying 'info' adds '-g' to the compilation flags.
-#   Specifying 'profile' adds '-g -pg' to the compilation flags and '-pg' to
-#   the linking flags. Otherwise, nothing is added.
-#
-#   Define the variables listed in the second argument if debug is enabled,
-#   defaulting to no variables.  Defines the variables listed in the third
-#   argument if debug is disabled, defaulting to NDEBUG.  All lists of
-#   variables should be space-separated.
-#
-#   If debug is not enabled, ensure AC_PROG_* will not add debugging flags.
-#   Should be invoked prior to any AC_PROG_* compiler checks.
-#
-#   IS-RELEASE can be used to change the default to 'no' when making a
-#   release.  Set IS-RELEASE to 'yes' or 'no' as appropriate. By default, it
-#   uses the value of $ax_is_release, so if you are using the AX_IS_RELEASE
-#   macro, there is no need to pass this parameter.
-#
-#     AX_IS_RELEASE([git-directory])
-#     AX_CHECK_ENABLE_DEBUG()
-#
-# LICENSE
-#
-#   Copyright (c) 2011 Rhys Ulerich <rhys.ulerich at gmail.com>
-#   Copyright (c) 2014, 2015 Philip Withnall <philip at tecnocode.co.uk>
-#
-#   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.
-
-#serial 5
-
-AC_DEFUN([AX_CHECK_ENABLE_DEBUG],[
-    AC_BEFORE([$0],[AC_PROG_CC])dnl
-    AC_BEFORE([$0],[AC_PROG_CXX])dnl
-    AC_BEFORE([$0],[AC_PROG_F77])dnl
-    AC_BEFORE([$0],[AC_PROG_FC])dnl
-
-    AC_MSG_CHECKING(whether to enable debugging)
-
-    ax_enable_debug_default=m4_tolower(m4_normalize(ifelse([$1],,[no],[$1])))
-    ax_enable_debug_is_release=m4_tolower(m4_normalize(ifelse([$4],,
-                                                              [$ax_is_release],
-                                                              [$4])))
-
-    # If this is a release, override the default.
-    AS_IF([test "$ax_enable_debug_is_release" = "yes"],
-      [ax_enable_debug_default="no"])
-
-    m4_define(ax_enable_debug_vars,[m4_normalize(ifelse([$2],,,[$2]))])
-    m4_define(ax_disable_debug_vars,[m4_normalize(ifelse([$3],,[NDEBUG],[$3]))])
-
-    AC_ARG_ENABLE(debug,
-	[AS_HELP_STRING([--enable-debug=]@<:@yes/info/profile/no@:>@,[compile with debugging])],
-	[],enable_debug=$ax_enable_debug_default)
-
-    # empty mean debug yes
-    AS_IF([test "x$enable_debug" = "x"],
-      [enable_debug="yes"])
-
-    # case of debug
-    AS_CASE([$enable_debug],
-      [yes],[
-	AC_MSG_RESULT(yes)
-	CFLAGS="${CFLAGS} -g -O0"
-	CXXFLAGS="${CXXFLAGS} -g -O0"
-	FFLAGS="${FFLAGS} -g -O0"
-	FCFLAGS="${FCFLAGS} -g -O0"
-	OBJCFLAGS="${OBJCFLAGS} -g -O0"
-      ],
-      [info],[
-	AC_MSG_RESULT(info)
-	CFLAGS="${CFLAGS} -g"
-	CXXFLAGS="${CXXFLAGS} -g"
-	FFLAGS="${FFLAGS} -g"
-	FCFLAGS="${FCFLAGS} -g"
-	OBJCFLAGS="${OBJCFLAGS} -g"
-      ],
-      [profile],[
-	AC_MSG_RESULT(profile)
-	CFLAGS="${CFLAGS} -g -pg"
-	CXXFLAGS="${CXXFLAGS} -g -pg"
-	FFLAGS="${FFLAGS} -g -pg"
-	FCFLAGS="${FCFLAGS} -g -pg"
-	OBJCFLAGS="${OBJCFLAGS} -g -pg"
-	LDFLAGS="${LDFLAGS} -pg"
-      ],
-      [
-	AC_MSG_RESULT(no)
-	dnl Ensure AC_PROG_CC/CXX/F77/FC/OBJC will not enable debug flags
-	dnl by setting any unset environment flag variables
-	AS_IF([test "x${CFLAGS+set}" != "xset"],
-	  [CFLAGS=""])
-	AS_IF([test "x${CXXFLAGS+set}" != "xset"],
-	  [CXXFLAGS=""])
-	AS_IF([test "x${FFLAGS+set}" != "xset"],
-	  [FFLAGS=""])
-	AS_IF([test "x${FCFLAGS+set}" != "xset"],
-	  [FCFLAGS=""])
-	AS_IF([test "x${OBJCFLAGS+set}" != "xset"],
-	  [OBJCFLAGS=""])
-      ])
-
-    dnl Define various variables if debugging is disabled.
-    dnl assert.h is a NOP if NDEBUG is defined, so define it by default.
-    AS_IF([test "x$enable_debug" = "xyes"],
-      [m4_map_args_w(ax_enable_debug_vars, [AC_DEFINE(], [,,[Define if debugging is enabled])])],
-      [m4_map_args_w(ax_disable_debug_vars, [AC_DEFINE(], [,,[Define if debugging is disabled])])])
-    ax_enable_debug=$enable_debug
-])
diff --git a/m4/ax_check_link_flag.m4 b/m4/ax_check_link_flag.m4
deleted file mode 100644
index eb01a6c..0000000
--- a/m4/ax_check_link_flag.m4
+++ /dev/null
@@ -1,74 +0,0 @@
-# ===========================================================================
-#    http://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 at gmx.de>
-#   Copyright (c) 2011 Maarten Bosmans <mkbosmans at gmail.com>
-#
-#   This program is free software: you can redistribute it and/or modify it
-#   under the terms of the GNU General Public License as published by the
-#   Free Software Foundation, either version 3 of the License, or (at your
-#   option) any later version.
-#
-#   This program is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-#   Public License for more details.
-#
-#   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
-#
-#   As a special exception, the respective Autoconf Macro's copyright owner
-#   gives unlimited permission to copy, distribute and modify the configure
-#   scripts that are the output of Autoconf when processing the Macro. You
-#   need not follow the terms of the GNU General Public License when using
-#   or distributing such scripts, even though portions of the text of the
-#   Macro appear in them. The GNU General Public License (GPL) does govern
-#   all other use of the material that constitutes the Autoconf Macro.
-#
-#   This special exception to the GPL applies to versions of the Autoconf
-#   Macro released by the Autoconf Archive. When you make and distribute a
-#   modified version of the Autoconf Macro, you may extend this special
-#   exception to the GPL to apply to your modified version as well.
-
-#serial 4
-
-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
diff --git a/m4/ax_code_coverage.m4 b/m4/ax_code_coverage.m4
deleted file mode 100644
index 2751459..0000000
--- a/m4/ax_code_coverage.m4
+++ /dev/null
@@ -1,229 +0,0 @@
-# ===========================================================================
-#     http://www.gnu.org/software/autoconf-archive/ax_code_coverage.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_CODE_COVERAGE()
-#
-# DESCRIPTION
-#
-#   Defines CODE_COVERAGE_CFLAGS and CODE_COVERAGE_LDFLAGS which should be
-#   included in the CFLAGS and LIBS/LDFLAGS variables of every build target
-#   (program or library) which should be built with code coverage support.
-#   Also defines CODE_COVERAGE_RULES which should be substituted in your
-#   Makefile; and $enable_code_coverage which can be used in subsequent
-#   configure output. CODE_COVERAGE_ENABLED is defined and substituted, and
-#   corresponds to the value of the --enable-code-coverage option, which
-#   defaults to being disabled.
-#
-#   Test also for gcov program and create GCOV variable that could be
-#   substituted.
-#
-#   Note that all optimisation flags in CFLAGS must be disabled when code
-#   coverage is enabled.
-#
-#   Usage example:
-#
-#   configure.ac:
-#
-#     AX_CODE_COVERAGE
-#
-#   Makefile.am:
-#
-#     @CODE_COVERAGE_RULES@
-#     my_program_LIBS = ... $(CODE_COVERAGE_LDFLAGS) ...
-#     my_program_CFLAGS = ... $(CODE_COVERAGE_CFLAGS) ...
-#
-#   This results in a "check-code-coverage" rule being added to any
-#   Makefile.am which includes "@CODE_COVERAGE_RULES@" (assuming the module
-#   has been configured with --enable-code-coverage). Running `make
-#   check-code-coverage` in that directory will run the module's test suite
-#   (`make check`) and build a code coverage report detailing the code which
-#   was touched, then print the URI for the report.
-#
-#   This code was derived from Makefile.decl in GLib, originally licenced
-#   under LGPLv2.1+.
-#
-# LICENSE
-#
-#   Copyright (c) 2012 Philip Withnall
-#   Copyright (c) 2012 Xan Lopez
-#   Copyright (c) 2012 Christian Persch
-#   Copyright (c) 2012 Paolo Borelli
-#   Copyright (c) 2012 Dan Winship
-#   Copyright (c) 2015 Bastien ROUCARIES
-#
-#   This library is free software; you can redistribute it and/or modify it
-#   under the terms of the GNU Lesser General Public License as published by
-#   the Free Software Foundation; either version 2.1 of the License, or (at
-#   your option) any later version.
-#
-#   This library is distributed in the hope that it will be useful, but
-#   WITHOUT ANY WARRANTY; without even the implied warranty of
-#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
-#   General Public License for more details.
-#
-#   You should have received a copy of the GNU Lesser General Public License
-#   along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-#serial 5
-
-AC_DEFUN([AX_CODE_COVERAGE],[
-	dnl Check for --enable-code-coverage
-	AC_REQUIRE([AC_PROG_SED])
-
-	# allow to override gcov location
-	AC_ARG_WITH([gcov],
-	  [AS_HELP_STRING([--with-gcov[=GCOV]], [use given GCOV for coverage (GCOV=gcov).])],
-	  [_AX_CODE_COVERAGE_GCOV_PROG_WITH=$with_gcov],
-	  [_AX_CODE_COVERAGE_GCOV_PROG_WITH=gcov])
-
-	AC_MSG_CHECKING([whether to build with code coverage support])
-	AC_ARG_ENABLE([code-coverage],
-	  AS_HELP_STRING([--enable-code-coverage],
-	  [Whether to enable code coverage support]),,
-	  enable_code_coverage=no)
-
-	AM_CONDITIONAL([CODE_COVERAGE_ENABLED], [test x$enable_code_coverage = xyes])
-	AC_SUBST([CODE_COVERAGE_ENABLED], [$enable_code_coverage])
-	AC_MSG_RESULT($enable_code_coverage)
-
-	AS_IF([ test "$enable_code_coverage" = "yes" ], [
-		# check for gcov
-		AC_CHECK_TOOL([GCOV],
-		  [$_AX_CODE_COVERAGE_GCOV_PROG_WITH],
-		  [:])
-		AS_IF([test "X$GCOV" = "X:"],
-		  [AC_MSG_ERROR([gcov is needed to do coverage])])
-		AC_SUBST([GCOV])
-
-		dnl Check if gcc is being used
-		AS_IF([ test "$GCC" = "no" ], [
-			AC_MSG_ERROR([not compiling with gcc, which is required for gcov code coverage])
-		])
-
-		# List of supported lcov versions.
-		lcov_version_list="1.6 1.7 1.8 1.9 1.10 1.11"
-
-		AC_CHECK_PROG([LCOV], [lcov], [lcov])
-		AC_CHECK_PROG([GENHTML], [genhtml], [genhtml])
-
-		AS_IF([ test "$LCOV" ], [
-			AC_CACHE_CHECK([for lcov version], ax_cv_lcov_version, [
-				ax_cv_lcov_version=invalid
-				lcov_version=`$LCOV -v 2>/dev/null | $SED -e 's/^.* //'`
-				for lcov_check_version in $lcov_version_list; do
-					if test "$lcov_version" = "$lcov_check_version"; then
-						ax_cv_lcov_version="$lcov_check_version (ok)"
-					fi
-				done
-			])
-		], [
-			lcov_msg="To enable code coverage reporting you must have one of the following lcov versions installed: $lcov_version_list"
-			AC_MSG_ERROR([$lcov_msg])
-		])
-
-		case $ax_cv_lcov_version in
-			""|invalid[)]
-				lcov_msg="You must have one of the following versions of lcov: $lcov_version_list (found: $lcov_version)."
-				AC_MSG_ERROR([$lcov_msg])
-				LCOV="exit 0;"
-			;;
-		esac
-
-		AS_IF([ test -z "$GENHTML" ], [
-			AC_MSG_ERROR([Could not find genhtml from the lcov package])
-		])
-
-		dnl Build the code coverage flags
-		CODE_COVERAGE_CFLAGS="-O0 -g -fprofile-arcs -ftest-coverage"
-		CODE_COVERAGE_LDFLAGS="-lgcov"
-
-		AC_SUBST([CODE_COVERAGE_CFLAGS])
-		AC_SUBST([CODE_COVERAGE_LDFLAGS])
-	])
-
-CODE_COVERAGE_RULES='
-# Code coverage
-#
-# Optional:
-#  - CODE_COVERAGE_DIRECTORY: Top-level directory for code coverage reporting.
-#    (Default: $(top_builddir))
-#  - CODE_COVERAGE_OUTPUT_FILE: Filename and path for the .info file generated
-#    by lcov for code coverage. (Default:
-#    $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info)
-#  - CODE_COVERAGE_OUTPUT_DIRECTORY: Directory for generated code coverage
-#    reports to be created. (Default:
-#    $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage)
-#  - CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH: --gcov-tool pathtogcov
-#  - CODE_COVERAGE_LCOV_OPTIONS_DEFAULT: Extra options to pass to the lcov instance.
-#    (Default: $CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH)
-#  - CODE_COVERAGE_LCOV_OPTIONS: Extra options to pass to the lcov instance.
-#    (Default: $CODE_COVERAGE_LCOV_OPTIONS_DEFAULT)
-#  - CODE_COVERAGE_GENHTML_OPTIONS: Extra options to pass to the genhtml
-#    instance. (Default: empty)
-#  - CODE_COVERAGE_IGNORE_PATTERN: Extra glob pattern of files to ignore
-#
-# The generated report will be titled using the $(PACKAGE_NAME) and
-# $(PACKAGE_VERSION). In order to add the current git hash to the title,
-# use the git-version-gen script, available online.
-
-# Optional variables
-CODE_COVERAGE_DIRECTORY ?= $(top_builddir)
-CODE_COVERAGE_OUTPUT_FILE ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage.info
-CODE_COVERAGE_OUTPUT_DIRECTORY ?= $(PACKAGE_NAME)-$(PACKAGE_VERSION)-coverage
-CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH ?= --gcov-tool "$(GCOV)"
-CODE_COVERAGE_LCOV_OPTIONS_DEFAULT ?= $(CODE_COVERAGE_LCOV_OPTIONS_GCOVPATH)
-CODE_COVERAGE_LCOV_OPTIONS ?= $(CODE_COVERAGE_LCOV_OPTIONS_DEFAULT)
-CODE_COVERAGE_GENHTML_OPTIONS ?=
-CODE_COVERAGE_IGNORE_PATTERN ?=
-
-code_coverage_quiet = $(code_coverage_quiet_$(V))
-code_coverage_quiet_ = $(code_coverage_quiet_$(AM_DEFAULT_VERBOSITY))
-code_coverage_quiet_0 = --quiet
-
-# Use recursive makes in order to ignore errors during check
-check-code-coverage:
-ifeq ($(CODE_COVERAGE_ENABLED),yes)
-	-$(MAKE) $(AM_MAKEFLAGS) -k check
-	$(MAKE) $(AM_MAKEFLAGS) code-coverage-capture
-else
-	@echo "Need to reconfigure with --enable-code-coverage"
-endif
-
-# Capture code coverage data
-code-coverage-capture: code-coverage-capture-hook
-ifeq ($(CODE_COVERAGE_ENABLED),yes)
-	$(LCOV) $(code_coverage_quiet) --directory $(CODE_COVERAGE_DIRECTORY) --capture --output-file "$(CODE_COVERAGE_OUTPUT_FILE).tmp" --test-name "$(PACKAGE_NAME)-$(PACKAGE_VERSION)" --no-checksum --compat-libtool $(CODE_COVERAGE_LCOV_OPTIONS)
-	$(LCOV) $(code_coverage_quiet) --directory $(CODE_COVERAGE_DIRECTORY) --remove "$(CODE_COVERAGE_OUTPUT_FILE).tmp" "/tmp/*" $(CODE_COVERAGE_IGNORE_PATTERN) --output-file "$(CODE_COVERAGE_OUTPUT_FILE)"
-	- at rm -f $(CODE_COVERAGE_OUTPUT_FILE).tmp
-	LANG=C $(GENHTML) $(code_coverage_quiet) --prefix $(CODE_COVERAGE_DIRECTORY) --output-directory "$(CODE_COVERAGE_OUTPUT_DIRECTORY)" --title "$(PACKAGE_NAME)-$(PACKAGE_VERSION) Code Coverage" --legend --show-details "$(CODE_COVERAGE_OUTPUT_FILE)" $(CODE_COVERAGE_GENHTML_OPTIONS)
-	@echo "file://$(abs_builddir)/$(CODE_COVERAGE_OUTPUT_DIRECTORY)/index.html"
-else
-	@echo "Need to reconfigure with --enable-code-coverage"
-endif
-
-# Hook rule executed before code-coverage-capture, overridable by the user
-code-coverage-capture-hook:
-
-ifeq ($(CODE_COVERAGE_ENABLED),yes)
-clean: code-coverage-clean
-code-coverage-clean:
-	-$(LCOV) --directory $(top_builddir) -z
-	-rm -rf $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_FILE).tmp $(CODE_COVERAGE_OUTPUT_DIRECTORY)
-	-find . -name "*.gcda" -o -name "*.gcov" -delete
-endif
-
-GITIGNOREFILES ?=
-GITIGNOREFILES += $(CODE_COVERAGE_OUTPUT_FILE) $(CODE_COVERAGE_OUTPUT_DIRECTORY)
-
-DISTCHECK_CONFIGURE_FLAGS ?=
-DISTCHECK_CONFIGURE_FLAGS += --disable-code-coverage
-
-.PHONY: check-code-coverage code-coverage-capture code-coverage-capture-hook code-coverage-clean
-'
-
-	AC_SUBST([CODE_COVERAGE_RULES])
-	m4_ifdef([_AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE([CODE_COVERAGE_RULES])])
-])
diff --git a/m4/ax_compiler_flags.m4 b/m4/ax_compiler_flags.m4
deleted file mode 100644
index 6cfe398..0000000
--- a/m4/ax_compiler_flags.m4
+++ /dev/null
@@ -1,158 +0,0 @@
-# ===========================================================================
-#     http://www.gnu.org/software/autoconf-archive/ax_compiler_flags.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_COMPILER_FLAGS([CFLAGS-VARIABLE], [LDFLAGS-VARIABLE], [IS-RELEASE], [EXTRA-BASE-CFLAGS], [EXTRA-YES-CFLAGS], [UNUSED], [UNUSED], [UNUSED], [EXTRA-BASE-LDFLAGS], [EXTRA-YES-LDFLAGS], [UNUSED], [UNUSED], [UNUSED])
-#
-# DESCRIPTION
-#
-#   Check for the presence of an --enable-compile-warnings option to
-#   configure, defaulting to "error" in normal operation, or "yes" if
-#   IS-RELEASE is equal to "yes".  Return the value in the variable
-#   $ax_enable_compile_warnings.
-#
-#   Depending on the value of --enable-compile-warnings, different compiler
-#   warnings are checked to see if they work with the current compiler and,
-#   if so, are appended to CFLAGS-VARIABLE and LDFLAGS-VARIABLE.  This
-#   allows a consistent set of baseline compiler warnings to be used across
-#   a code base, irrespective of any warnings enabled locally by individual
-#   developers.  By standardising the warnings used by all developers of a
-#   project, the project can commit to a zero-warnings policy, using -Werror
-#   to prevent compilation if new warnings are introduced.  This makes
-#   catching bugs which are flagged by warnings a lot easier.
-#
-#   By providing a consistent --enable-compile-warnings argument across all
-#   projects using this macro, continuous integration systems can easily be
-#   configured the same for all projects.  Automated systems or build
-#   systems aimed at beginners may want to pass the --disable-Werror
-#   argument to unconditionally prevent warnings being fatal.
-#
-#   --enable-compile-warnings can take the values:
-#
-#    * no:      Base compiler warnings only; not even -Wall.
-#    * yes:     The above, plus a broad range of useful warnings.
-#    * error:   The above, plus -Werror so that all warnings are fatal.
-#               Use --disable-Werror to override this and disable fatal
-#               warnings.
-#
-#   The set of base and enabled flags can be augmented using the
-#   EXTRA-*-CFLAGS and EXTRA-*-LDFLAGS variables, which are tested and
-#   appended to the output variable if --enable-compile-warnings is not
-#   "no". Flags should not be disabled using these arguments, as the entire
-#   point of AX_COMPILER_FLAGS is to enforce a consistent set of useful
-#   compiler warnings on code, using warnings which have been chosen for low
-#   false positive rates.  If a compiler emits false positives for a
-#   warning, a #pragma should be used in the code to disable the warning
-#   locally. See:
-#
-#     https://gcc.gnu.org/onlinedocs/gcc-4.9.2/gcc/Diagnostic-Pragmas.html#Diagnostic-Pragmas
-#
-#   The EXTRA-* variables should only be used to supply extra warning flags,
-#   and not general purpose compiler flags, as they are controlled by
-#   configure options such as --disable-Werror.
-#
-#   IS-RELEASE can be used to disable -Werror when making a release, which
-#   is useful for those hairy moments when you just want to get the release
-#   done as quickly as possible.  Set it to "yes" to disable -Werror. By
-#   default, it uses the value of $ax_is_release, so if you are using the
-#   AX_IS_RELEASE macro, there is no need to pass this parameter. For
-#   example:
-#
-#     AX_IS_RELEASE([git-directory])
-#     AX_COMPILER_FLAGS()
-#
-#   CFLAGS-VARIABLE defaults to WARN_CFLAGS, and LDFLAGS-VARIABLE defaults
-#   to WARN_LDFLAGS.  Both variables are AC_SUBST-ed by this macro, but must
-#   be manually added to the CFLAGS and LDFLAGS variables for each target in
-#   the code base.
-#
-#   If C++ language support is enabled with AC_PROG_CXX, which must occur
-#   before this macro in configure.ac, warning flags for the C++ compiler
-#   are AC_SUBST-ed as WARN_CXXFLAGS, and must be manually added to the
-#   CXXFLAGS variables for each target in the code base.  EXTRA-*-CFLAGS can
-#   be used to augment the base and enabled flags.
-#
-#   Warning flags for g-ir-scanner (from GObject Introspection) are
-#   AC_SUBST-ed as WARN_SCANNERFLAGS.  This variable must be manually added
-#   to the SCANNERFLAGS variable for each GIR target in the code base.  If
-#   extra g-ir-scanner flags need to be enabled, the AX_COMPILER_FLAGS_GIR
-#   macro must be invoked manually.
-#
-#   AX_COMPILER_FLAGS may add support for other tools in future, in addition
-#   to the compiler and linker.  No extra EXTRA-* variables will be added
-#   for those tools, and all extra support will still use the single
-#   --enable-compile-warnings configure option.  For finer grained control
-#   over the flags for individual tools, use AX_COMPILER_FLAGS_CFLAGS,
-#   AX_COMPILER_FLAGS_LDFLAGS and AX_COMPILER_FLAGS_* for new tools.
-#
-#   The UNUSED variables date from a previous version of this macro, and are
-#   automatically appended to the preceding non-UNUSED variable. They should
-#   be left empty in new uses of the macro.
-#
-# LICENSE
-#
-#   Copyright (c) 2014, 2015 Philip Withnall <philip at tecnocode.co.uk>
-#   Copyright (c) 2015 David King <amigadave at amigadave.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 13
-
-# _AX_COMPILER_FLAGS_LANG([LANGNAME])
-m4_defun([_AX_COMPILER_FLAGS_LANG],
-[m4_ifdef([_AX_COMPILER_FLAGS_LANG_]$1[_enabled], [],
-          [m4_define([_AX_COMPILER_FLAGS_LANG_]$1[_enabled], [])dnl
-           AX_REQUIRE_DEFINED([AX_COMPILER_FLAGS_]$1[FLAGS])])dnl
-])
-
-AC_DEFUN([AX_COMPILER_FLAGS],[
-    # C support is enabled by default.
-    _AX_COMPILER_FLAGS_LANG([C])
-    # Only enable C++ support if AC_PROG_CXX is called. The redefinition of
-    # AC_PROG_CXX is so that a fatal error is emitted if this macro is called
-    # before AC_PROG_CXX, which would otherwise cause no C++ warnings to be
-    # checked.
-    AC_PROVIDE_IFELSE([AC_PROG_CXX],
-                      [_AX_COMPILER_FLAGS_LANG([CXX])],
-                      [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[_AX_COMPILER_FLAGS_LANG([CXX])])])
-    AX_REQUIRE_DEFINED([AX_COMPILER_FLAGS_LDFLAGS])
-
-    # Default value for IS-RELEASE is $ax_is_release
-    ax_compiler_flags_is_release=m4_tolower(m4_normalize(ifelse([$3],,
-                                                                [$ax_is_release],
-                                                                [$3])))
-
-    AC_ARG_ENABLE([compile-warnings],
-                  AS_HELP_STRING([--enable-compile-warnings=@<:@no/yes/error@:>@],
-                                 [Enable compiler warnings and errors]),,
-                  [AS_IF([test "$ax_compiler_flags_is_release" = "yes"],
-                         [enable_compile_warnings="yes"],
-                         [enable_compile_warnings="error"])])
-    AC_ARG_ENABLE([Werror],
-                  AS_HELP_STRING([--disable-Werror],
-                                 [Unconditionally make all compiler warnings non-fatal]),,
-                  [enable_Werror=maybe])
-
-    # Return the user's chosen warning level
-    AS_IF([test "$enable_Werror" = "no" -a \
-                "$enable_compile_warnings" = "error"],[
-        enable_compile_warnings="yes"
-    ])
-
-    ax_enable_compile_warnings=$enable_compile_warnings
-
-    AX_COMPILER_FLAGS_CFLAGS([$1],[$ax_compiler_flags_is_release],
-                             [$4],[$5 $6 $7 $8])
-    m4_ifdef([_AX_COMPILER_FLAGS_LANG_CXX_enabled],
-             [AX_COMPILER_FLAGS_CXXFLAGS([WARN_CXXFLAGS],
-                                         [$ax_compiler_flags_is_release],
-                                         [$4],[$5 $6 $7 $8])])
-    AX_COMPILER_FLAGS_LDFLAGS([$2],[$ax_compiler_flags_is_release],
-                              [$9],[$10 $11 $12 $13])
-    AX_COMPILER_FLAGS_GIR([WARN_SCANNERFLAGS],[$ax_compiler_flags_is_release])
-])dnl AX_COMPILER_FLAGS
diff --git a/m4/ax_compiler_flags_cflags.m4 b/m4/ax_compiler_flags_cflags.m4
deleted file mode 100644
index f470f8f..0000000
--- a/m4/ax_compiler_flags_cflags.m4
+++ /dev/null
@@ -1,133 +0,0 @@
-# ============================================================================
-#  http://www.gnu.org/software/autoconf-archive/ax_compiler_flags_cflags.html
-# ============================================================================
-#
-# SYNOPSIS
-#
-#   AX_COMPILER_FLAGS_CFLAGS([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
-#
-# DESCRIPTION
-#
-#   Add warning flags for the C compiler to VARIABLE, which defaults to
-#   WARN_CFLAGS.  VARIABLE is AC_SUBST-ed by this macro, but must be
-#   manually added to the CFLAGS variable for each target in the code base.
-#
-#   This macro depends on the environment set up by AX_COMPILER_FLAGS.
-#   Specifically, it uses the value of $ax_enable_compile_warnings to decide
-#   which flags to enable.
-#
-# LICENSE
-#
-#   Copyright (c) 2014, 2015 Philip Withnall <philip at tecnocode.co.uk>
-#
-#   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 11
-
-AC_DEFUN([AX_COMPILER_FLAGS_CFLAGS],[
-    AC_REQUIRE([AC_PROG_SED])
-    AX_REQUIRE_DEFINED([AX_APPEND_COMPILE_FLAGS])
-    AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
-    AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
-
-    # Variable names
-    m4_define(ax_warn_cflags_variable,
-              [m4_normalize(ifelse([$1],,[WARN_CFLAGS],[$1]))])
-
-    AC_LANG_PUSH([C])
-
-    # Always pass -Werror=unknown-warning-option to get Clang to fail on bad
-    # flags, otherwise they are always appended to the warn_cflags variable, and
-    # Clang warns on them for every compilation unit.
-    # If this is passed to GCC, it will explode, so the flag must be enabled
-    # conditionally.
-    AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option],[
-        ax_compiler_flags_test="-Werror=unknown-warning-option"
-    ],[
-        ax_compiler_flags_test=""
-    ])
-
-    # Base flags
-    AX_APPEND_COMPILE_FLAGS([ dnl
-        -fno-strict-aliasing dnl
-        $3 dnl
-    ],ax_warn_cflags_variable,[$ax_compiler_flags_test])
-
-    AS_IF([test "$ax_enable_compile_warnings" != "no"],[
-        # "yes" flags
-        AX_APPEND_COMPILE_FLAGS([ dnl
-            -Wall dnl
-            -Wextra dnl
-            -Wundef dnl
-            -Wnested-externs dnl
-            -Wwrite-strings dnl
-            -Wpointer-arith dnl
-            -Wmissing-declarations dnl
-            -Wmissing-prototypes dnl
-            -Wstrict-prototypes dnl
-            -Wredundant-decls dnl
-            -Wno-unused-parameter dnl
-            -Wno-missing-field-initializers dnl
-            -Wdeclaration-after-statement dnl
-            -Wformat=2 dnl
-            -Wold-style-definition dnl
-            -Wcast-align dnl
-            -Wformat-nonliteral dnl
-            -Wformat-security dnl
-            -Wsign-compare dnl
-            -Wstrict-aliasing dnl
-            -Wshadow dnl
-            -Winline dnl
-            -Wpacked dnl
-            -Wmissing-format-attribute dnl
-            -Wmissing-noreturn dnl
-            -Winit-self dnl
-            -Wredundant-decls dnl
-            -Wmissing-include-dirs dnl
-            -Wunused-but-set-variable dnl
-            -Warray-bounds dnl
-            -Wimplicit-function-declaration dnl
-            -Wreturn-type dnl
-            -Wswitch-enum dnl
-            -Wswitch-default dnl
-            $4 dnl
-            $5 dnl
-            $6 dnl
-            $7 dnl
-        ],ax_warn_cflags_variable,[$ax_compiler_flags_test])
-    ])
-    AS_IF([test "$ax_enable_compile_warnings" = "error"],[
-        # "error" flags; -Werror has to be appended unconditionally because
-        # it's not possible to test for
-        #
-        # suggest-attribute=format is disabled because it gives too many false
-        # positives
-        AX_APPEND_FLAG([-Werror],ax_warn_cflags_variable)
-
-        AX_APPEND_COMPILE_FLAGS([ dnl
-            -Wno-suggest-attribute=format dnl
-        ],ax_warn_cflags_variable,[$ax_compiler_flags_test])
-    ])
-
-    # In the flags below, when disabling specific flags, always add *both*
-    # -Wno-foo and -Wno-error=foo. This fixes the situation where (for example)
-    # we enable -Werror, disable a flag, and a build bot passes CFLAGS=-Wall,
-    # which effectively turns that flag back on again as an error.
-    for flag in $ax_warn_cflags_variable; do
-        AS_CASE([$flag],
-                [-Wno-*=*],[],
-                [-Wno-*],[
-                    AX_APPEND_COMPILE_FLAGS([-Wno-error=$(AS_ECHO([$flag]) | $SED 's/^-Wno-//')],
-                                            ax_warn_cflags_variable,
-                                            [$ax_compiler_flags_test])
-                ])
-    done
-
-    AC_LANG_POP([C])
-
-    # Substitute the variables
-    AC_SUBST(ax_warn_cflags_variable)
-])dnl AX_COMPILER_FLAGS
diff --git a/m4/ax_compiler_flags_gir.m4 b/m4/ax_compiler_flags_gir.m4
deleted file mode 100644
index 180f50d..0000000
--- a/m4/ax_compiler_flags_gir.m4
+++ /dev/null
@@ -1,60 +0,0 @@
-# ===========================================================================
-#   http://www.gnu.org/software/autoconf-archive/ax_compiler_flags_gir.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_COMPILER_FLAGS_GIR([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
-#
-# DESCRIPTION
-#
-#   Add warning flags for the g-ir-scanner (from GObject Introspection) to
-#   VARIABLE, which defaults to WARN_SCANNERFLAGS.  VARIABLE is AC_SUBST-ed
-#   by this macro, but must be manually added to the SCANNERFLAGS variable
-#   for each GIR target in the code base.
-#
-#   This macro depends on the environment set up by AX_COMPILER_FLAGS.
-#   Specifically, it uses the value of $ax_enable_compile_warnings to decide
-#   which flags to enable.
-#
-# LICENSE
-#
-#   Copyright (c) 2015 Philip Withnall <philip at tecnocode.co.uk>
-#
-#   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 4
-
-AC_DEFUN([AX_COMPILER_FLAGS_GIR],[
-    AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
-
-    # Variable names
-    m4_define(ax_warn_scannerflags_variable,
-              [m4_normalize(ifelse([$1],,[WARN_SCANNERFLAGS],[$1]))])
-
-    # Base flags
-    AX_APPEND_FLAG([$3],ax_warn_scannerflags_variable)
-
-    AS_IF([test "$ax_enable_compile_warnings" != "no"],[
-        # "yes" flags
-        AX_APPEND_FLAG([ dnl
-            --warn-all dnl
-            $4 dnl
-            $5 dnl
-            $6 dnl
-            $7 dnl
-        ],ax_warn_scannerflags_variable)
-    ])
-    AS_IF([test "$ax_enable_compile_warnings" = "error"],[
-        # "error" flags
-        AX_APPEND_FLAG([ dnl
-            --warn-error dnl
-        ],ax_warn_scannerflags_variable)
-    ])
-
-    # Substitute the variables
-    AC_SUBST(ax_warn_scannerflags_variable)
-])dnl AX_COMPILER_FLAGS
diff --git a/m4/ax_compiler_flags_ldflags.m4 b/m4/ax_compiler_flags_ldflags.m4
deleted file mode 100644
index 228471e..0000000
--- a/m4/ax_compiler_flags_ldflags.m4
+++ /dev/null
@@ -1,75 +0,0 @@
-# =============================================================================
-#  http://www.gnu.org/software/autoconf-archive/ax_compiler_flags_ldflags.html
-# =============================================================================
-#
-# SYNOPSIS
-#
-#   AX_COMPILER_FLAGS_LDFLAGS([VARIABLE], [IS-RELEASE], [EXTRA-BASE-FLAGS], [EXTRA-YES-FLAGS])
-#
-# DESCRIPTION
-#
-#   Add warning flags for the linker to VARIABLE, which defaults to
-#   WARN_LDFLAGS.  VARIABLE is AC_SUBST-ed by this macro, but must be
-#   manually added to the LDFLAGS variable for each target in the code base.
-#
-#   This macro depends on the environment set up by AX_COMPILER_FLAGS.
-#   Specifically, it uses the value of $ax_enable_compile_warnings to decide
-#   which flags to enable.
-#
-# LICENSE
-#
-#   Copyright (c) 2014, 2015 Philip Withnall <philip at tecnocode.co.uk>
-#
-#   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 5
-
-AC_DEFUN([AX_COMPILER_FLAGS_LDFLAGS],[
-    AX_REQUIRE_DEFINED([AX_APPEND_LINK_FLAGS])
-    AX_REQUIRE_DEFINED([AX_APPEND_FLAG])
-    AX_REQUIRE_DEFINED([AX_CHECK_COMPILE_FLAG])
-
-    # Variable names
-    m4_define(ax_warn_ldflags_variable,
-              [m4_normalize(ifelse([$1],,[WARN_LDFLAGS],[$1]))])
-
-    # Always pass -Werror=unknown-warning-option to get Clang to fail on bad
-    # flags, otherwise they are always appended to the warn_ldflags variable,
-    # and Clang warns on them for every compilation unit.
-    # If this is passed to GCC, it will explode, so the flag must be enabled
-    # conditionally.
-    AX_CHECK_COMPILE_FLAG([-Werror=unknown-warning-option],[
-        ax_compiler_flags_test="-Werror=unknown-warning-option"
-    ],[
-        ax_compiler_flags_test=""
-    ])
-
-    # Base flags
-    AX_APPEND_LINK_FLAGS([ dnl
-        -Wl,--no-as-needed dnl
-        $3 dnl
-    ],ax_warn_ldflags_variable,[$ax_compiler_flags_test])
-
-    AS_IF([test "$ax_enable_compile_warnings" != "no"],[
-        # "yes" flags
-        AX_APPEND_LINK_FLAGS([$4 $5 $6 $7],
-                                ax_warn_ldflags_variable,
-                                [$ax_compiler_flags_test])
-    ])
-    AS_IF([test "$ax_enable_compile_warnings" = "error"],[
-        # "error" flags; -Werror has to be appended unconditionally because
-        # it's not possible to test for
-        #
-        # suggest-attribute=format is disabled because it gives too many false
-        # positives
-        AX_APPEND_LINK_FLAGS([ dnl
-            -Wl,--fatal-warnings dnl
-        ],ax_warn_ldflags_variable,[$ax_compiler_flags_test])
-    ])
-
-    # Substitute the variables
-    AC_SUBST(ax_warn_ldflags_variable)
-])dnl AX_COMPILER_FLAGS
diff --git a/m4/ax_is_release.m4 b/m4/ax_is_release.m4
deleted file mode 100644
index 9ec6746..0000000
--- a/m4/ax_is_release.m4
+++ /dev/null
@@ -1,69 +0,0 @@
-# ===========================================================================
-#       http://www.gnu.org/software/autoconf-archive/ax_is_release.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_IS_RELEASE(POLICY)
-#
-# DESCRIPTION
-#
-#   Determine whether the code is being configured as a release, or from
-#   git. Set the ax_is_release variable to 'yes' or 'no'.
-#
-#   If building a release version, it is recommended that the configure
-#   script disable compiler errors and debug features, by conditionalising
-#   them on the ax_is_release variable.  If building from git, these
-#   features should be enabled.
-#
-#   The POLICY parameter specifies how ax_is_release is determined. It can
-#   take the following values:
-#
-#    * git-directory:  ax_is_release will be 'no' if a '.git' directory exists
-#    * minor-version:  ax_is_release will be 'no' if the minor version number
-#                      in $PACKAGE_VERSION is odd; this assumes
-#                      $PACKAGE_VERSION follows the 'major.minor.micro' scheme
-#    * micro-version:  ax_is_release will be 'no' if the micro version number
-#                      in $PACKAGE_VERSION is odd; this assumes
-#                      $PACKAGE_VERSION follows the 'major.minor.micro' scheme
-#    * always:         ax_is_release will always be 'yes'
-#    * never:          ax_is_release will always be 'no'
-#
-#   Other policies may be added in future.
-#
-# LICENSE
-#
-#   Copyright (c) 2015 Philip Withnall <philip at tecnocode.co.uk>
-#
-#   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.
-
-#serial 3
-
-AC_DEFUN([AX_IS_RELEASE],[
-    AC_BEFORE([AC_INIT],[$0])
-
-    m4_case([$1],
-      [git-directory],[
-        # $is_release = (.git directory does not exist)
-        AS_IF([test -d .git],[ax_is_release=no],[ax_is_release=yes])
-      ],
-      [minor-version],[
-        # $is_release = ($minor_version is even)
-        minor_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]][[^.]]*.\([[^.]][[^.]]*\).*/\1/'`
-        AS_IF([test "$(( $minor_version % 2 ))" -ne 0],
-              [ax_is_release=no],[ax_is_release=yes])
-      ],
-      [micro-version],[
-        # $is_release = ($micro_version is even)
-        micro_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]]*\.[[^.]]*\.\([[^.]]*\).*/\1/'`
-        AS_IF([test "$(( $micro_version % 2 ))" -ne 0],
-              [ax_is_release=no],[ax_is_release=yes])
-      ],
-      [always],[ax_is_release=yes],
-      [never],[ax_is_release=no],
-      [
-        AC_MSG_ERROR([Invalid policy. Valid policies: git-directory, minor-version.])
-      ])
-])
diff --git a/m4/ax_require_defined.m4 b/m4/ax_require_defined.m4
deleted file mode 100644
index cae1111..0000000
--- a/m4/ax_require_defined.m4
+++ /dev/null
@@ -1,37 +0,0 @@
-# ===========================================================================
-#    http://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 at 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 1
-
-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
-- 
2.17.1



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