build: Replace Autotools with Meson

Quick rundown of benefits:

- Much faster:
  - Autotools (with autogen): 22 seconds
  - Meson: 7 seconds
  - Meson (with ccache): 2 seconds

- Simpler:
  - ~1000 lines smaller
  - Single simple language

- Potentially better Windows (Visual Studio) support

What is not done:

- Complete Windows support
- OSX support (easy)

Closes #2013
Closes #1937
Closes #1803

1 files changed, 0 insertions, 327 deletions

diff --git a/m4/ax_python_devel.m4 b/m4/ax_python_devel.m4
deleted file mode 100644
index f18ed8a0..00000000
--- a/m4/ax_python_devel.m4
+++ /dev/null
@@ -1,327 +0,0 @@
-# ===========================================================================
-#      http://www.gnu.org/software/autoconf-archive/ax_python_devel.html
-# ===========================================================================
-#
-# SYNOPSIS
-#
-#   AX_PYTHON_DEVEL([version])
-#
-# DESCRIPTION
-#
-#   Note: Defines as a precious variable "PYTHON_VERSION". Don't override it
-#   in your configure.ac.
-#
-#   This macro checks for Python and tries to get the include path to
-#   'Python.h'. It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LIBS) output
-#   variables. It also exports $(PYTHON_EXTRA_LIBS) and
-#   $(PYTHON_EXTRA_LDFLAGS) for embedding Python in your code.
-#
-#   You can search for some particular version of Python by passing a
-#   parameter to this macro, for example ">= '2.3.1'", or "== '2.4'". Please
-#   note that you *have* to pass also an operator along with the version to
-#   match, and pay special attention to the single quotes surrounding the
-#   version number. Don't use "PYTHON_VERSION" for this: that environment
-#   variable is declared as precious and thus reserved for the end-user.
-#
-#   This macro should work for all versions of Python >= 2.1.0. As an end
-#   user, you can disable the check for the python version by setting the
-#   PYTHON_NOVERSIONCHECK environment variable to something else than the
-#   empty string.
-#
-#   If you need to use this macro for an older Python version, please
-#   contact the authors. We're always open for feedback.
-#
-# LICENSE
-#
-#   Copyright (c) 2009 Sebastian Huber <sebastian-huber@web.de>
-#   Copyright (c) 2009 Alan W. Irwin
-#   Copyright (c) 2009 Rafael Laboissiere <rafael@laboissiere.net>
-#   Copyright (c) 2009 Andrew Collier
-#   Copyright (c) 2009 Matteo Settenvini <matteo@member.fsf.org>
-#   Copyright (c) 2009 Horst Knorr <hk_classes@knoda.org>
-#   Copyright (c) 2013 Daniel Mullner <muellner@math.stanford.edu>
-#
-#   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 18
-
-AU_ALIAS([AC_PYTHON_DEVEL], [AX_PYTHON_DEVEL])
-AC_DEFUN([AX_PYTHON_DEVEL],[
-	#
-	# Allow the use of a (user set) custom python version
-	#
-	AC_ARG_VAR([PYTHON_VERSION],[The installed Python
-		version to use, for example '2.3'. This string
-		will be appended to the Python interpreter
-		canonical name.])
-
-	AC_PATH_PROG([PYTHON],[python[$PYTHON_VERSION]])
-	if test -z "$PYTHON"; then
-	   AC_MSG_ERROR([Cannot find python$PYTHON_VERSION in your system path])
-	   PYTHON_VERSION=""
-	fi
-
-	#
-	# Check for a version of Python >= 2.1.0
-	#
-	AC_MSG_CHECKING([for a version of Python >= '2.1.0'])
-	ac_supports_python_ver=`$PYTHON -c "import sys; \
-		ver = sys.version.split ()[[0]]; \
-		print (ver >= '2.1.0')"`
-	if test "$ac_supports_python_ver" != "True"; then
-		if test -z "$PYTHON_NOVERSIONCHECK"; then
-			AC_MSG_RESULT([no])
-			AC_MSG_FAILURE([
-This version of the AC@&t@_PYTHON_DEVEL macro
-doesn't work properly with versions of Python before
-2.1.0. You may need to re-run configure, setting the
-variables PYTHON_CPPFLAGS, PYTHON_LIBS, PYTHON_SITE_PKG,
-PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand.
-Moreover, to disable this check, set PYTHON_NOVERSIONCHECK
-to something else than an empty string.
-])
-		else
-			AC_MSG_RESULT([skip at user request])
-		fi
-	else
-		AC_MSG_RESULT([yes])
-	fi
-
-	#
-	# if the macro parameter ``version'' is set, honour it
-	#
-	if test -n "$1"; then
-		AC_MSG_CHECKING([for a version of Python $1])
-		ac_supports_python_ver=`$PYTHON -c "import sys; \
-			ver = sys.version.split ()[[0]]; \
-			print (ver $1)"`
-		if test "$ac_supports_python_ver" = "True"; then
-		   AC_MSG_RESULT([yes])
-		else
-			AC_MSG_RESULT([no])
-			AC_MSG_ERROR([this package requires Python $1.
-If you have it installed, but it isn't the default Python
-interpreter in your system path, please pass the PYTHON_VERSION
-variable to configure. See ``configure --help'' for reference.
-])
-			PYTHON_VERSION=""
-		fi
-	fi
-
-	#
-	# Check if you have distutils, else fail
-	#
-	AC_MSG_CHECKING([for the distutils Python package])
-	ac_distutils_result=`$PYTHON -c "import distutils" 2>&1`
-	if test -z "$ac_distutils_result"; then
-		AC_MSG_RESULT([yes])
-	else
-		AC_MSG_RESULT([no])
-		AC_MSG_ERROR([cannot import Python module "distutils".
-Please check your Python installation. The error was:
-$ac_distutils_result])
-		PYTHON_VERSION=""
-	fi
-
-	#
-	# Check for Python include path
-	#
-	AC_MSG_CHECKING([for Python include path])
-	if test -z "$PYTHON_CPPFLAGS"; then
-		python_path=`$PYTHON -c "import distutils.sysconfig; \
-			print (distutils.sysconfig.get_python_inc ());"`
-		plat_python_path=`$PYTHON -c "import distutils.sysconfig; \
-			print (distutils.sysconfig.get_python_inc (plat_specific=1));"`
-		if test -n "${python_path}"; then
-			if test "${plat_python_path}" != "${python_path}"; then
-				python_path="-I$python_path -I$plat_python_path"
-			else
-				python_path="-I$python_path"
-			fi
-		fi
-		PYTHON_CPPFLAGS=$python_path
-	fi
-	AC_MSG_RESULT([$PYTHON_CPPFLAGS])
-	AC_SUBST([PYTHON_CPPFLAGS])
-
-	#
-	# Check for Python library path
-	#
-	AC_MSG_CHECKING([for Python library path])
-	if test -z "$PYTHON_LIBS"; then
-		# (makes two attempts to ensure we've got a version number
-		# from the interpreter)
-		ac_python_version=`cat<<EOD | $PYTHON -
-
-# join all versioning strings, on some systems
-# major/minor numbers could be in different list elements
-from distutils.sysconfig import *
-e = get_config_var('VERSION')
-if e is not None:
-	print(e)
-EOD`
-
-		if test -z "$ac_python_version"; then
-			if test -n "$PYTHON_VERSION"; then
-				ac_python_version=$PYTHON_VERSION
-			else
-				ac_python_version=`$PYTHON -c "import sys; \
-					print (sys.version[[:3]])"`
-			fi
-		fi
-
-		# Make the versioning information available to the compiler
-		AC_DEFINE_UNQUOTED([HAVE_PYTHON], ["$ac_python_version"],
-                                   [If available, contains the Python version number currently in use.])
-
-		# First, the library directory:
-		ac_python_libdir=`cat<<EOD | $PYTHON -
-
-# There should be only one
-import distutils.sysconfig
-e = distutils.sysconfig.get_config_var('LIBDIR')
-if e is not None:
-	print (e)
-EOD`
-
-		# Now, for the library:
-		ac_python_library=`cat<<EOD | $PYTHON -
-
-import distutils.sysconfig
-c = distutils.sysconfig.get_config_vars()
-if 'LDVERSION' in c:
-	print ('python'+c[['LDVERSION']])
-else:
-	print ('python'+c[['VERSION']])
-EOD`
-
-		# This small piece shamelessly adapted from PostgreSQL python macro;
-		# credits goes to momjian, I think. I'd like to put the right name
-		# in the credits, if someone can point me in the right direction... ?
-		#
-		if test -n "$ac_python_libdir" -a -n "$ac_python_library"
-		then
-			# use the official shared library
-			ac_python_library=`echo "$ac_python_library" | sed "s/^lib//"`
-			PYTHON_LIBS="-L$ac_python_libdir -l$ac_python_library"
-		else
-			# old way: use libpython from python_configdir
-			ac_python_libdir=`$PYTHON -c \
-			  "from distutils.sysconfig import get_python_lib as f; \
-			  import os; \
-			  print (os.path.join(f(plat_specific=1, standard_lib=1), 'config'));"`
-			PYTHON_LIBS="-L$ac_python_libdir -lpython$ac_python_version"
-		fi
-
-		if test -z "PYTHON_LIBS"; then
-			AC_MSG_ERROR([
-  Cannot determine location of your Python DSO. Please check it was installed with
-  dynamic libraries enabled, or try setting PYTHON_LIBS by hand.
-			])
-		fi
-	fi
-	AC_MSG_RESULT([$PYTHON_LIBS])
-	AC_SUBST([PYTHON_LIBS])
-
-	#
-	# Check for site packages
-	#
-	AC_MSG_CHECKING([for Python site-packages path])
-	if test -z "$PYTHON_SITE_PKG"; then
-		PYTHON_SITE_PKG=`$PYTHON -c "import distutils.sysconfig; \
-			print (distutils.sysconfig.get_python_lib(0,0));"`
-	fi
-	AC_MSG_RESULT([$PYTHON_SITE_PKG])
-	AC_SUBST([PYTHON_SITE_PKG])
-
-	#
-	# libraries which must be linked in when embedding
-	#
-	AC_MSG_CHECKING(python extra libraries)
-	if test -z "$PYTHON_EXTRA_LDFLAGS"; then
-	   PYTHON_EXTRA_LDFLAGS=`$PYTHON -c "import distutils.sysconfig; \
-                conf = distutils.sysconfig.get_config_var; \
-                print (conf('LIBS') + ' ' + conf('SYSLIBS'))"`
-	fi
-	AC_MSG_RESULT([$PYTHON_EXTRA_LDFLAGS])
-	AC_SUBST(PYTHON_EXTRA_LDFLAGS)
-
-	#
-	# linking flags needed when embedding
-	#
-	AC_MSG_CHECKING(python extra linking flags)
-	if test -z "$PYTHON_EXTRA_LIBS"; then
-		PYTHON_EXTRA_LIBS=`$PYTHON -c "import distutils.sysconfig; \
-			conf = distutils.sysconfig.get_config_var; \
-			print (conf('LINKFORSHARED'))"`
-	fi
-	AC_MSG_RESULT([$PYTHON_EXTRA_LIBS])
-	AC_SUBST(PYTHON_EXTRA_LIBS)
-
-	#
-	# final check to see if everything compiles alright
-	#
-	AC_MSG_CHECKING([consistency of all components of python development environment])
-	# save current global flags
-	ac_save_LIBS="$LIBS"
-	ac_save_LDFLAGS="$LDFLAGS"
-	ac_save_CPPFLAGS="$CPPFLAGS"
-	LIBS="$ac_save_LIBS $PYTHON_LIBS $PYTHON_EXTRA_LIBS $PYTHON_EXTRA_LIBS"
-	LDFLAGS="$ac_save_LDFLAGS $PYTHON_EXTRA_LDFLAGS"
-	CPPFLAGS="$ac_save_CPPFLAGS $PYTHON_CPPFLAGS"
-	AC_LANG_PUSH([C])
-	AC_LINK_IFELSE([
-		AC_LANG_PROGRAM([[#include <Python.h>]],
-				[[Py_Initialize();]])
-		],[pythonexists=yes],[pythonexists=no])
-	AC_LANG_POP([C])
-	# turn back to default flags
-	CPPFLAGS="$ac_save_CPPFLAGS"
-	LIBS="$ac_save_LIBS"
-	LDFLAGS="$ac_save_LDFLAGS"
-
-	AC_MSG_RESULT([$pythonexists])
-
-        if test ! "x$pythonexists" = "xyes"; then
-	   AC_MSG_FAILURE([
-  Could not link test program to Python. Maybe the main Python library has been
-  installed in some non-standard library path. If so, pass it to configure,
-  via the LIBS environment variable.
-  Example: ./configure LIBS="-L/usr/non-standard-path/python/lib"
-  ============================================================================
-   ERROR!
-   You probably have to install the development version of the Python package
-   for your distribution.  The exact name of this package varies among them.
-  ============================================================================
-	   ])
-	  PYTHON_VERSION=""
-	fi
-
-	#
-	# all done!
-	#
-])