1# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
2
3# Copyright (C) 1996-2018 Free Software Foundation, Inc.
4
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15m4_ifndef([AC_AUTOCONF_VERSION],
16  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
18[m4_warning([this file was generated for autoconf 2.69.
19You have another version of autoconf.  It may work, but is not guaranteed to.
20If you have problems, you may need to regenerate the build system entirely.
21To do so, use the procedure documented by the package, typically 'autoreconf'.])])
22
23# pkg.m4 - Macros to locate and utilise pkg-config.   -*- Autoconf -*-
24# serial 11 (pkg-config-0.29.1)
25
26dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
27dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
28dnl
29dnl This program is free software; you can redistribute it and/or modify
30dnl it under the terms of the GNU General Public License as published by
31dnl the Free Software Foundation; either version 2 of the License, or
32dnl (at your option) any later version.
33dnl
34dnl This program is distributed in the hope that it will be useful, but
35dnl WITHOUT ANY WARRANTY; without even the implied warranty of
36dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
37dnl General Public License for more details.
38dnl
39dnl You should have received a copy of the GNU General Public License
40dnl along with this program; if not, write to the Free Software
41dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
42dnl 02111-1307, USA.
43dnl
44dnl As a special exception to the GNU General Public License, if you
45dnl distribute this file as part of a program that contains a
46dnl configuration script generated by Autoconf, you may include it under
47dnl the same distribution terms that you use for the rest of that
48dnl program.
49
50dnl PKG_PREREQ(MIN-VERSION)
51dnl -----------------------
52dnl Since: 0.29
53dnl
54dnl Verify that the version of the pkg-config macros are at least
55dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
56dnl installed version of pkg-config, this checks the developer's version
57dnl of pkg.m4 when generating configure.
58dnl
59dnl To ensure that this macro is defined, also add:
60dnl m4_ifndef([PKG_PREREQ],
61dnl     [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
62dnl
63dnl See the "Since" comment for each macro you use to see what version
64dnl of the macros you require.
65m4_defun([PKG_PREREQ],
66[m4_define([PKG_MACROS_VERSION], [0.29.1])
67m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
68    [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
69])dnl PKG_PREREQ
70
71dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
72dnl ----------------------------------
73dnl Since: 0.16
74dnl
75dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
76dnl first found in the path. Checks that the version of pkg-config found
77dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
78dnl used since that's the first version where most current features of
79dnl pkg-config existed.
80AC_DEFUN([PKG_PROG_PKG_CONFIG],
81[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
82m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
83m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
84AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
85AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
86AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
87
88if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
89	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
90fi
91if test -n "$PKG_CONFIG"; then
92	_pkg_min_version=m4_default([$1], [0.9.0])
93	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
94	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
95		AC_MSG_RESULT([yes])
96	else
97		AC_MSG_RESULT([no])
98		PKG_CONFIG=""
99	fi
100fi[]dnl
101])dnl PKG_PROG_PKG_CONFIG
102
103dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
104dnl -------------------------------------------------------------------
105dnl Since: 0.18
106dnl
107dnl Check to see whether a particular set of modules exists. Similar to
108dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
109dnl
110dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
111dnl only at the first occurence in configure.ac, so if the first place
112dnl it's called might be skipped (such as if it is within an "if", you
113dnl have to call PKG_CHECK_EXISTS manually
114AC_DEFUN([PKG_CHECK_EXISTS],
115[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
116if test -n "$PKG_CONFIG" && \
117    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
118  m4_default([$2], [:])
119m4_ifvaln([$3], [else
120  $3])dnl
121fi])
122
123dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
124dnl ---------------------------------------------
125dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
126dnl pkg_failed based on the result.
127m4_define([_PKG_CONFIG],
128[if test -n "$$1"; then
129    pkg_cv_[]$1="$$1"
130 elif test -n "$PKG_CONFIG"; then
131    PKG_CHECK_EXISTS([$3],
132                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
133		      test "x$?" != "x0" && pkg_failed=yes ],
134		     [pkg_failed=yes])
135 else
136    pkg_failed=untried
137fi[]dnl
138])dnl _PKG_CONFIG
139
140dnl _PKG_SHORT_ERRORS_SUPPORTED
141dnl ---------------------------
142dnl Internal check to see if pkg-config supports short errors.
143AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
144[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
145if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
146        _pkg_short_errors_supported=yes
147else
148        _pkg_short_errors_supported=no
149fi[]dnl
150])dnl _PKG_SHORT_ERRORS_SUPPORTED
151
152
153dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
154dnl   [ACTION-IF-NOT-FOUND])
155dnl --------------------------------------------------------------
156dnl Since: 0.4.0
157dnl
158dnl Note that if there is a possibility the first call to
159dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
160dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
161AC_DEFUN([PKG_CHECK_MODULES],
162[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
163AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
164AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
165
166pkg_failed=no
167AC_MSG_CHECKING([for $1])
168
169_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
170_PKG_CONFIG([$1][_LIBS], [libs], [$2])
171
172m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
173and $1[]_LIBS to avoid the need to call pkg-config.
174See the pkg-config man page for more details.])
175
176if test $pkg_failed = yes; then
177   	AC_MSG_RESULT([no])
178        _PKG_SHORT_ERRORS_SUPPORTED
179        if test $_pkg_short_errors_supported = yes; then
180	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
181        else
182	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
183        fi
184	# Put the nasty error message in config.log where it belongs
185	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
186
187	m4_default([$4], [AC_MSG_ERROR(
188[Package requirements ($2) were not met:
189
190$$1_PKG_ERRORS
191
192Consider adjusting the PKG_CONFIG_PATH environment variable if you
193installed software in a non-standard prefix.
194
195_PKG_TEXT])[]dnl
196        ])
197elif test $pkg_failed = untried; then
198     	AC_MSG_RESULT([no])
199	m4_default([$4], [AC_MSG_FAILURE(
200[The pkg-config script could not be found or is too old.  Make sure it
201is in your PATH or set the PKG_CONFIG environment variable to the full
202path to pkg-config.
203
204_PKG_TEXT
205
206To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
207        ])
208else
209	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
210	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
211        AC_MSG_RESULT([yes])
212	$3
213fi[]dnl
214])dnl PKG_CHECK_MODULES
215
216
217dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
218dnl   [ACTION-IF-NOT-FOUND])
219dnl ---------------------------------------------------------------------
220dnl Since: 0.29
221dnl
222dnl Checks for existence of MODULES and gathers its build flags with
223dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
224dnl and VARIABLE-PREFIX_LIBS from --libs.
225dnl
226dnl Note that if there is a possibility the first call to
227dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
228dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
229dnl configure.ac.
230AC_DEFUN([PKG_CHECK_MODULES_STATIC],
231[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
232_save_PKG_CONFIG=$PKG_CONFIG
233PKG_CONFIG="$PKG_CONFIG --static"
234PKG_CHECK_MODULES($@)
235PKG_CONFIG=$_save_PKG_CONFIG[]dnl
236])dnl PKG_CHECK_MODULES_STATIC
237
238
239dnl PKG_INSTALLDIR([DIRECTORY])
240dnl -------------------------
241dnl Since: 0.27
242dnl
243dnl Substitutes the variable pkgconfigdir as the location where a module
244dnl should install pkg-config .pc files. By default the directory is
245dnl $libdir/pkgconfig, but the default can be changed by passing
246dnl DIRECTORY. The user can override through the --with-pkgconfigdir
247dnl parameter.
248AC_DEFUN([PKG_INSTALLDIR],
249[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
250m4_pushdef([pkg_description],
251    [pkg-config installation directory @<:@]pkg_default[@:>@])
252AC_ARG_WITH([pkgconfigdir],
253    [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
254    [with_pkgconfigdir=]pkg_default)
255AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
256m4_popdef([pkg_default])
257m4_popdef([pkg_description])
258])dnl PKG_INSTALLDIR
259
260
261dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
262dnl --------------------------------
263dnl Since: 0.27
264dnl
265dnl Substitutes the variable noarch_pkgconfigdir as the location where a
266dnl module should install arch-independent pkg-config .pc files. By
267dnl default the directory is $datadir/pkgconfig, but the default can be
268dnl changed by passing DIRECTORY. The user can override through the
269dnl --with-noarch-pkgconfigdir parameter.
270AC_DEFUN([PKG_NOARCH_INSTALLDIR],
271[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
272m4_pushdef([pkg_description],
273    [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
274AC_ARG_WITH([noarch-pkgconfigdir],
275    [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
276    [with_noarch_pkgconfigdir=]pkg_default)
277AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
278m4_popdef([pkg_default])
279m4_popdef([pkg_description])
280])dnl PKG_NOARCH_INSTALLDIR
281
282
283dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
284dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
285dnl -------------------------------------------
286dnl Since: 0.28
287dnl
288dnl Retrieves the value of the pkg-config variable for the given module.
289AC_DEFUN([PKG_CHECK_VAR],
290[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
291AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
292
293_PKG_CONFIG([$1], [variable="][$3]["], [$2])
294AS_VAR_COPY([$1], [pkg_cv_][$1])
295
296AS_VAR_IF([$1], [""], [$5], [$4])dnl
297])dnl PKG_CHECK_VAR
298
299dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
300dnl   [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
301dnl   [DESCRIPTION], [DEFAULT])
302dnl ------------------------------------------
303dnl
304dnl Prepare a "--with-" configure option using the lowercase
305dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
306dnl PKG_CHECK_MODULES in a single macro.
307AC_DEFUN([PKG_WITH_MODULES],
308[
309m4_pushdef([with_arg], m4_tolower([$1]))
310
311m4_pushdef([description],
312           [m4_default([$5], [build with ]with_arg[ support])])
313
314m4_pushdef([def_arg], [m4_default([$6], [auto])])
315m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
316m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
317
318m4_case(def_arg,
319            [yes],[m4_pushdef([with_without], [--without-]with_arg)],
320            [m4_pushdef([with_without],[--with-]with_arg)])
321
322AC_ARG_WITH(with_arg,
323     AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
324    [AS_TR_SH([with_]with_arg)=def_arg])
325
326AS_CASE([$AS_TR_SH([with_]with_arg)],
327            [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
328            [auto],[PKG_CHECK_MODULES([$1],[$2],
329                                        [m4_n([def_action_if_found]) $3],
330                                        [m4_n([def_action_if_not_found]) $4])])
331
332m4_popdef([with_arg])
333m4_popdef([description])
334m4_popdef([def_arg])
335
336])dnl PKG_WITH_MODULES
337
338dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
339dnl   [DESCRIPTION], [DEFAULT])
340dnl -----------------------------------------------
341dnl
342dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
343dnl check._[VARIABLE-PREFIX] is exported as make variable.
344AC_DEFUN([PKG_HAVE_WITH_MODULES],
345[
346PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
347
348AM_CONDITIONAL([HAVE_][$1],
349               [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
350])dnl PKG_HAVE_WITH_MODULES
351
352dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
353dnl   [DESCRIPTION], [DEFAULT])
354dnl ------------------------------------------------------
355dnl
356dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
357dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
358dnl and preprocessor variable.
359AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
360[
361PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
362
363AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
364        [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
365])dnl PKG_HAVE_DEFINE_WITH_MODULES
366
367# Configure paths for SDL
368# Sam Lantinga 9/21/99
369# stolen from Manish Singh
370# stolen back from Frank Belew
371# stolen from Manish Singh
372# Shamelessly stolen from Owen Taylor
373#
374# Changelog:
375# * also look for SDL2.framework under Mac OS X
376
377# serial 1
378
379dnl AM_PATH_SDL2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
380dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
381dnl
382AC_DEFUN([AM_PATH_SDL2],
383[dnl
384dnl Get the cflags and libraries from the sdl2-config script
385dnl
386AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
387            sdl_prefix="$withval", sdl_prefix="")
388AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
389            sdl_exec_prefix="$withval", sdl_exec_prefix="")
390AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
391		    , enable_sdltest=yes)
392AC_ARG_ENABLE(sdlframework, [  --disable-sdlframework Do not search for SDL2.framework],
393        , search_sdl_framework=yes)
394
395AC_ARG_VAR(SDL2_FRAMEWORK, [Path to SDL2.framework])
396
397  min_sdl_version=ifelse([$1], ,2.0.0,$1)
398
399  if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
400    PKG_CHECK_MODULES([SDL], [sdl2 >= $min_sdl_version],
401           [sdl_pc=yes],
402           [sdl_pc=no])
403  else
404    sdl_pc=no
405    if test x$sdl_exec_prefix != x ; then
406      sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix"
407      if test x${SDL2_CONFIG+set} != xset ; then
408        SDL2_CONFIG=$sdl_exec_prefix/bin/sdl2-config
409      fi
410    fi
411    if test x$sdl_prefix != x ; then
412      sdl_config_args="$sdl_config_args --prefix=$sdl_prefix"
413      if test x${SDL2_CONFIG+set} != xset ; then
414        SDL2_CONFIG=$sdl_prefix/bin/sdl2-config
415      fi
416    fi
417  fi
418
419  if test "x$sdl_pc" = xyes ; then
420    no_sdl=""
421    SDL2_CONFIG="pkg-config sdl2"
422  else
423    as_save_PATH="$PATH"
424    if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then
425      PATH="$prefix/bin:$prefix/usr/bin:$PATH"
426    fi
427    AC_PATH_PROG(SDL2_CONFIG, sdl2-config, no, [$PATH])
428    PATH="$as_save_PATH"
429    no_sdl=""
430
431    if test "$SDL2_CONFIG" = "no" -a "x$search_sdl_framework" = "xyes"; then
432      AC_MSG_CHECKING(for SDL2.framework)
433      if test "x$SDL2_FRAMEWORK" != x; then
434        sdl_framework=$SDL2_FRAMEWORK
435      else
436        for d in / ~/ /System/; do
437          if test -d "$dLibrary/Frameworks/SDL2.framework"; then
438            sdl_framework="$dLibrary/Frameworks/SDL2.framework"
439          fi
440        done
441      fi
442
443      if test x"$sdl_framework" != x && test -d "$sdl_framework"; then
444        AC_MSG_RESULT($sdl_framework)
445        sdl_framework_dir=`dirname $sdl_framework`
446        SDL_CFLAGS="-F$sdl_framework_dir -Wl,-framework,SDL2 -I$sdl_framework/include"
447        SDL_LIBS="-F$sdl_framework_dir -Wl,-framework,SDL2"
448      else
449        no_sdl=yes
450      fi
451    fi
452
453    if test "$SDL2_CONFIG" != "no"; then
454      if test "x$sdl_pc" = "xno"; then
455        AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
456        SDL_CFLAGS=`$SDL2_CONFIG $sdl_config_args --cflags`
457        SDL_LIBS=`$SDL2_CONFIG $sdl_config_args --libs`
458      fi
459
460      sdl_major_version=`$SDL2_CONFIG $sdl_config_args --version | \
461             sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
462      sdl_minor_version=`$SDL2_CONFIG $sdl_config_args --version | \
463             sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
464      sdl_micro_version=`$SDL2_CONFIG $sdl_config_args --version | \
465             sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
466      if test "x$enable_sdltest" = "xyes" ; then
467        ac_save_CFLAGS="$CFLAGS"
468        ac_save_CXXFLAGS="$CXXFLAGS"
469        ac_save_LIBS="$LIBS"
470        CFLAGS="$CFLAGS $SDL_CFLAGS"
471        CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
472        LIBS="$LIBS $SDL_LIBS"
473dnl
474dnl Now check if the installed SDL is sufficiently new. (Also sanity
475dnl checks the results of sdl2-config to some extent
476dnl
477      rm -f conf.sdltest
478      AC_TRY_RUN([
479#include <stdio.h>
480#include <stdlib.h>
481#include <string.h>
482#include "SDL.h"
483
484char*
485my_strdup (char *str)
486{
487  char *new_str;
488
489  if (str)
490    {
491      new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
492      strcpy (new_str, str);
493    }
494  else
495    new_str = NULL;
496
497  return new_str;
498}
499
500int main (int argc, char *argv[])
501{
502  int major, minor, micro;
503  char *tmp_version;
504
505  /* This hangs on some systems (?)
506  system ("touch conf.sdltest");
507  */
508  { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
509
510  /* HP/UX 9 (%@#!) writes to sscanf strings */
511  tmp_version = my_strdup("$min_sdl_version");
512  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
513     printf("%s, bad version string\n", "$min_sdl_version");
514     exit(1);
515   }
516
517   if (($sdl_major_version > major) ||
518      (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
519      (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
520    {
521      return 0;
522    }
523  else
524    {
525      printf("\n*** 'sdl2-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
526      printf("*** of SDL required is %d.%d.%d. If sdl2-config is correct, then it is\n", major, minor, micro);
527      printf("*** best to upgrade to the required version.\n");
528      printf("*** If sdl2-config was wrong, set the environment variable SDL2_CONFIG\n");
529      printf("*** to point to the correct copy of sdl2-config, and remove the file\n");
530      printf("*** config.cache before re-running configure\n");
531      return 1;
532    }
533}
534
535],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
536        CFLAGS="$ac_save_CFLAGS"
537        CXXFLAGS="$ac_save_CXXFLAGS"
538        LIBS="$ac_save_LIBS"
539
540      fi
541      if test "x$sdl_pc" = "xno"; then
542        if test "x$no_sdl" = "xyes"; then
543          AC_MSG_RESULT(no)
544        else
545          AC_MSG_RESULT(yes)
546        fi
547      fi
548    fi
549  fi
550  if test "x$no_sdl" = x ; then
551     ifelse([$2], , :, [$2])
552  else
553     if test "$SDL2_CONFIG" = "no" ; then
554       echo "*** The sdl2-config script installed by SDL could not be found"
555       echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
556       echo "*** your path, or set the SDL2_CONFIG environment variable to the"
557       echo "*** full path to sdl2-config."
558     else
559       if test -f conf.sdltest ; then
560        :
561       else
562          echo "*** Could not run SDL test program, checking why..."
563          CFLAGS="$CFLAGS $SDL_CFLAGS"
564          CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
565          LIBS="$LIBS $SDL_LIBS"
566          AC_TRY_LINK([
567#include <stdio.h>
568#include "SDL.h"
569
570int main(int argc, char *argv[])
571{ return 0; }
572#undef  main
573#define main K_and_R_C_main
574],      [ return 0; ],
575        [ echo "*** The test program compiled, but did not run. This usually means"
576          echo "*** that the run-time linker is not finding SDL or finding the wrong"
577          echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
578          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
579          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
580          echo "*** is required on your system"
581	  echo "***"
582          echo "*** If you have an old version installed, it is best to remove it, although"
583          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
584        [ echo "*** The test program failed to compile or link. See the file config.log for the"
585          echo "*** exact error that occured. This usually means SDL was incorrectly installed"
586          echo "*** or that you have moved SDL since it was installed. In the latter case, you"
587          echo "*** may want to edit the sdl2-config script: $SDL2_CONFIG" ])
588          CFLAGS="$ac_save_CFLAGS"
589          CXXFLAGS="$ac_save_CXXFLAGS"
590          LIBS="$ac_save_LIBS"
591       fi
592     fi
593     SDL_CFLAGS=""
594     SDL_LIBS=""
595     ifelse([$3], , :, [$3])
596  fi
597  AC_SUBST(SDL_CFLAGS)
598  AC_SUBST(SDL_LIBS)
599  rm -f conf.sdltest
600])
601
602# Copyright (C) 2002-2018 Free Software Foundation, Inc.
603#
604# This file is free software; the Free Software Foundation
605# gives unlimited permission to copy and/or distribute it,
606# with or without modifications, as long as this notice is preserved.
607
608# AM_AUTOMAKE_VERSION(VERSION)
609# ----------------------------
610# Automake X.Y traces this macro to ensure aclocal.m4 has been
611# generated from the m4 files accompanying Automake X.Y.
612# (This private macro should not be called outside this file.)
613AC_DEFUN([AM_AUTOMAKE_VERSION],
614[am__api_version='1.16'
615dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
616dnl require some minimum version.  Point them to the right macro.
617m4_if([$1], [1.16.1], [],
618      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
619])
620
621# _AM_AUTOCONF_VERSION(VERSION)
622# -----------------------------
623# aclocal traces this macro to find the Autoconf version.
624# This is a private macro too.  Using m4_define simplifies
625# the logic in aclocal, which can simply ignore this definition.
626m4_define([_AM_AUTOCONF_VERSION], [])
627
628# AM_SET_CURRENT_AUTOMAKE_VERSION
629# -------------------------------
630# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
631# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
632AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
633[AM_AUTOMAKE_VERSION([1.16.1])dnl
634m4_ifndef([AC_AUTOCONF_VERSION],
635  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
636_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
637
638# Copyright (C) 2011-2018 Free Software Foundation, Inc.
639#
640# This file is free software; the Free Software Foundation
641# gives unlimited permission to copy and/or distribute it,
642# with or without modifications, as long as this notice is preserved.
643
644# AM_PROG_AR([ACT-IF-FAIL])
645# -------------------------
646# Try to determine the archiver interface, and trigger the ar-lib wrapper
647# if it is needed.  If the detection of archiver interface fails, run
648# ACT-IF-FAIL (default is to abort configure with a proper error message).
649AC_DEFUN([AM_PROG_AR],
650[AC_BEFORE([$0], [LT_INIT])dnl
651AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl
652AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
653AC_REQUIRE_AUX_FILE([ar-lib])dnl
654AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
655: ${AR=ar}
656
657AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
658  [AC_LANG_PUSH([C])
659   am_cv_ar_interface=ar
660   AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])],
661     [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
662      AC_TRY_EVAL([am_ar_try])
663      if test "$ac_status" -eq 0; then
664        am_cv_ar_interface=ar
665      else
666        am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
667        AC_TRY_EVAL([am_ar_try])
668        if test "$ac_status" -eq 0; then
669          am_cv_ar_interface=lib
670        else
671          am_cv_ar_interface=unknown
672        fi
673      fi
674      rm -f conftest.lib libconftest.a
675     ])
676   AC_LANG_POP([C])])
677
678case $am_cv_ar_interface in
679ar)
680  ;;
681lib)
682  # Microsoft lib, so override with the ar-lib wrapper script.
683  # FIXME: It is wrong to rewrite AR.
684  # But if we don't then we get into trouble of one sort or another.
685  # A longer-term fix would be to have automake use am__AR in this case,
686  # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
687  # similar.
688  AR="$am_aux_dir/ar-lib $AR"
689  ;;
690unknown)
691  m4_default([$1],
692             [AC_MSG_ERROR([could not determine $AR interface])])
693  ;;
694esac
695AC_SUBST([AR])dnl
696])
697
698# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
699
700# Copyright (C) 2001-2018 Free Software Foundation, Inc.
701#
702# This file is free software; the Free Software Foundation
703# gives unlimited permission to copy and/or distribute it,
704# with or without modifications, as long as this notice is preserved.
705
706# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
707# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
708# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
709#
710# Of course, Automake must honor this variable whenever it calls a
711# tool from the auxiliary directory.  The problem is that $srcdir (and
712# therefore $ac_aux_dir as well) can be either absolute or relative,
713# depending on how configure is run.  This is pretty annoying, since
714# it makes $ac_aux_dir quite unusable in subdirectories: in the top
715# source directory, any form will work fine, but in subdirectories a
716# relative path needs to be adjusted first.
717#
718# $ac_aux_dir/missing
719#    fails when called from a subdirectory if $ac_aux_dir is relative
720# $top_srcdir/$ac_aux_dir/missing
721#    fails if $ac_aux_dir is absolute,
722#    fails when called from a subdirectory in a VPATH build with
723#          a relative $ac_aux_dir
724#
725# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
726# are both prefixed by $srcdir.  In an in-source build this is usually
727# harmless because $srcdir is '.', but things will broke when you
728# start a VPATH build or use an absolute $srcdir.
729#
730# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
731# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
732#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
733# and then we would define $MISSING as
734#   MISSING="\${SHELL} $am_aux_dir/missing"
735# This will work as long as MISSING is not called from configure, because
736# unfortunately $(top_srcdir) has no meaning in configure.
737# However there are other variables, like CC, which are often used in
738# configure, and could therefore not use this "fixed" $ac_aux_dir.
739#
740# Another solution, used here, is to always expand $ac_aux_dir to an
741# absolute PATH.  The drawback is that using absolute paths prevent a
742# configured tree to be moved without reconfiguration.
743
744AC_DEFUN([AM_AUX_DIR_EXPAND],
745[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
746# Expand $ac_aux_dir to an absolute path.
747am_aux_dir=`cd "$ac_aux_dir" && pwd`
748])
749
750# AM_CONDITIONAL                                            -*- Autoconf -*-
751
752# Copyright (C) 1997-2018 Free Software Foundation, Inc.
753#
754# This file is free software; the Free Software Foundation
755# gives unlimited permission to copy and/or distribute it,
756# with or without modifications, as long as this notice is preserved.
757
758# AM_CONDITIONAL(NAME, SHELL-CONDITION)
759# -------------------------------------
760# Define a conditional.
761AC_DEFUN([AM_CONDITIONAL],
762[AC_PREREQ([2.52])dnl
763 m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
764       [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
765AC_SUBST([$1_TRUE])dnl
766AC_SUBST([$1_FALSE])dnl
767_AM_SUBST_NOTMAKE([$1_TRUE])dnl
768_AM_SUBST_NOTMAKE([$1_FALSE])dnl
769m4_define([_AM_COND_VALUE_$1], [$2])dnl
770if $2; then
771  $1_TRUE=
772  $1_FALSE='#'
773else
774  $1_TRUE='#'
775  $1_FALSE=
776fi
777AC_CONFIG_COMMANDS_PRE(
778[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
779  AC_MSG_ERROR([[conditional "$1" was never defined.
780Usually this means the macro was only invoked conditionally.]])
781fi])])
782
783# Copyright (C) 1999-2018 Free Software Foundation, Inc.
784#
785# This file is free software; the Free Software Foundation
786# gives unlimited permission to copy and/or distribute it,
787# with or without modifications, as long as this notice is preserved.
788
789
790# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
791# written in clear, in which case automake, when reading aclocal.m4,
792# will think it sees a *use*, and therefore will trigger all it's
793# C support machinery.  Also note that it means that autoscan, seeing
794# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
795
796
797# _AM_DEPENDENCIES(NAME)
798# ----------------------
799# See how the compiler implements dependency checking.
800# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
801# We try a few techniques and use that to set a single cache variable.
802#
803# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
804# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
805# dependency, and given that the user is not expected to run this macro,
806# just rely on AC_PROG_CC.
807AC_DEFUN([_AM_DEPENDENCIES],
808[AC_REQUIRE([AM_SET_DEPDIR])dnl
809AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
810AC_REQUIRE([AM_MAKE_INCLUDE])dnl
811AC_REQUIRE([AM_DEP_TRACK])dnl
812
813m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
814      [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
815      [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
816      [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
817      [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
818      [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
819                    [depcc="$$1"   am_compiler_list=])
820
821AC_CACHE_CHECK([dependency style of $depcc],
822               [am_cv_$1_dependencies_compiler_type],
823[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
824  # We make a subdir and do the tests there.  Otherwise we can end up
825  # making bogus files that we don't know about and never remove.  For
826  # instance it was reported that on HP-UX the gcc test will end up
827  # making a dummy file named 'D' -- because '-MD' means "put the output
828  # in D".
829  rm -rf conftest.dir
830  mkdir conftest.dir
831  # Copy depcomp to subdir because otherwise we won't find it if we're
832  # using a relative directory.
833  cp "$am_depcomp" conftest.dir
834  cd conftest.dir
835  # We will build objects and dependencies in a subdirectory because
836  # it helps to detect inapplicable dependency modes.  For instance
837  # both Tru64's cc and ICC support -MD to output dependencies as a
838  # side effect of compilation, but ICC will put the dependencies in
839  # the current directory while Tru64 will put them in the object
840  # directory.
841  mkdir sub
842
843  am_cv_$1_dependencies_compiler_type=none
844  if test "$am_compiler_list" = ""; then
845     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
846  fi
847  am__universal=false
848  m4_case([$1], [CC],
849    [case " $depcc " in #(
850     *\ -arch\ *\ -arch\ *) am__universal=true ;;
851     esac],
852    [CXX],
853    [case " $depcc " in #(
854     *\ -arch\ *\ -arch\ *) am__universal=true ;;
855     esac])
856
857  for depmode in $am_compiler_list; do
858    # Setup a source with many dependencies, because some compilers
859    # like to wrap large dependency lists on column 80 (with \), and
860    # we should not choose a depcomp mode which is confused by this.
861    #
862    # We need to recreate these files for each test, as the compiler may
863    # overwrite some of them when testing with obscure command lines.
864    # This happens at least with the AIX C compiler.
865    : > sub/conftest.c
866    for i in 1 2 3 4 5 6; do
867      echo '#include "conftst'$i'.h"' >> sub/conftest.c
868      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
869      # Solaris 10 /bin/sh.
870      echo '/* dummy */' > sub/conftst$i.h
871    done
872    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
873
874    # We check with '-c' and '-o' for the sake of the "dashmstdout"
875    # mode.  It turns out that the SunPro C++ compiler does not properly
876    # handle '-M -o', and we need to detect this.  Also, some Intel
877    # versions had trouble with output in subdirs.
878    am__obj=sub/conftest.${OBJEXT-o}
879    am__minus_obj="-o $am__obj"
880    case $depmode in
881    gcc)
882      # This depmode causes a compiler race in universal mode.
883      test "$am__universal" = false || continue
884      ;;
885    nosideeffect)
886      # After this tag, mechanisms are not by side-effect, so they'll
887      # only be used when explicitly requested.
888      if test "x$enable_dependency_tracking" = xyes; then
889	continue
890      else
891	break
892      fi
893      ;;
894    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
895      # This compiler won't grok '-c -o', but also, the minuso test has
896      # not run yet.  These depmodes are late enough in the game, and
897      # so weak that their functioning should not be impacted.
898      am__obj=conftest.${OBJEXT-o}
899      am__minus_obj=
900      ;;
901    none) break ;;
902    esac
903    if depmode=$depmode \
904       source=sub/conftest.c object=$am__obj \
905       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
906       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
907         >/dev/null 2>conftest.err &&
908       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
909       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
910       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
911       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
912      # icc doesn't choke on unknown options, it will just issue warnings
913      # or remarks (even with -Werror).  So we grep stderr for any message
914      # that says an option was ignored or not supported.
915      # When given -MP, icc 7.0 and 7.1 complain thusly:
916      #   icc: Command line warning: ignoring option '-M'; no argument required
917      # The diagnosis changed in icc 8.0:
918      #   icc: Command line remark: option '-MP' not supported
919      if (grep 'ignoring option' conftest.err ||
920          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
921        am_cv_$1_dependencies_compiler_type=$depmode
922        break
923      fi
924    fi
925  done
926
927  cd ..
928  rm -rf conftest.dir
929else
930  am_cv_$1_dependencies_compiler_type=none
931fi
932])
933AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
934AM_CONDITIONAL([am__fastdep$1], [
935  test "x$enable_dependency_tracking" != xno \
936  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
937])
938
939
940# AM_SET_DEPDIR
941# -------------
942# Choose a directory name for dependency files.
943# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
944AC_DEFUN([AM_SET_DEPDIR],
945[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
946AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
947])
948
949
950# AM_DEP_TRACK
951# ------------
952AC_DEFUN([AM_DEP_TRACK],
953[AC_ARG_ENABLE([dependency-tracking], [dnl
954AS_HELP_STRING(
955  [--enable-dependency-tracking],
956  [do not reject slow dependency extractors])
957AS_HELP_STRING(
958  [--disable-dependency-tracking],
959  [speeds up one-time build])])
960if test "x$enable_dependency_tracking" != xno; then
961  am_depcomp="$ac_aux_dir/depcomp"
962  AMDEPBACKSLASH='\'
963  am__nodep='_no'
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965AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
966AC_SUBST([AMDEPBACKSLASH])dnl
967_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
968AC_SUBST([am__nodep])dnl
969_AM_SUBST_NOTMAKE([am__nodep])dnl
970])
971
972# Generate code to set up dependency tracking.              -*- Autoconf -*-
973
974# Copyright (C) 1999-2018 Free Software Foundation, Inc.
975#
976# This file is free software; the Free Software Foundation
977# gives unlimited permission to copy and/or distribute it,
978# with or without modifications, as long as this notice is preserved.
979
980# _AM_OUTPUT_DEPENDENCY_COMMANDS
981# ------------------------------
982AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
983[{
984  # Older Autoconf quotes --file arguments for eval, but not when files
985  # are listed without --file.  Let's play safe and only enable the eval
986  # if we detect the quoting.
987  # TODO: see whether this extra hack can be removed once we start
988  # requiring Autoconf 2.70 or later.
989  AS_CASE([$CONFIG_FILES],
990          [*\'*], [eval set x "$CONFIG_FILES"],
991          [*], [set x $CONFIG_FILES])
992  shift
993  # Used to flag and report bootstrapping failures.
994  am_rc=0
995  for am_mf
996  do
997    # Strip MF so we end up with the name of the file.
998    am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
999    # Check whether this is an Automake generated Makefile which includes
1000    # dependency-tracking related rules and includes.
1001    # Grep'ing the whole file directly is not great: AIX grep has a line
1002    # limit of 2048, but all sed's we know have understand at least 4000.
1003    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
1004      || continue
1005    am_dirpart=`AS_DIRNAME(["$am_mf"])`
1006    am_filepart=`AS_BASENAME(["$am_mf"])`
1007    AM_RUN_LOG([cd "$am_dirpart" \
1008      && sed -e '/# am--include-marker/d' "$am_filepart" \
1009        | $MAKE -f - am--depfiles]) || am_rc=$?
1010  done
1011  if test $am_rc -ne 0; then
1012    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
1013    for automatic dependency tracking.  Try re-running configure with the
1014    '--disable-dependency-tracking' option to at least be able to build
1015    the package (albeit without support for automatic dependency tracking).])
1016  fi
1017  AS_UNSET([am_dirpart])
1018  AS_UNSET([am_filepart])
1019  AS_UNSET([am_mf])
1020  AS_UNSET([am_rc])
1021  rm -f conftest-deps.mk
1022}
1023])# _AM_OUTPUT_DEPENDENCY_COMMANDS
1024
1025
1026# AM_OUTPUT_DEPENDENCY_COMMANDS
1027# -----------------------------
1028# This macro should only be invoked once -- use via AC_REQUIRE.
1029#
1030# This code is only required when automatic dependency tracking is enabled.
1031# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
1032# order to bootstrap the dependency handling code.
1033AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
1034[AC_CONFIG_COMMANDS([depfiles],
1035     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
1036     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
1037
1038# Do all the work for Automake.                             -*- Autoconf -*-
1039
1040# Copyright (C) 1996-2018 Free Software Foundation, Inc.
1041#
1042# This file is free software; the Free Software Foundation
1043# gives unlimited permission to copy and/or distribute it,
1044# with or without modifications, as long as this notice is preserved.
1045
1046# This macro actually does too much.  Some checks are only needed if
1047# your package does certain things.  But this isn't really a big deal.
1048
1049dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
1050m4_define([AC_PROG_CC],
1051m4_defn([AC_PROG_CC])
1052[_AM_PROG_CC_C_O
1053])
1054
1055# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
1056# AM_INIT_AUTOMAKE([OPTIONS])
1057# -----------------------------------------------
1058# The call with PACKAGE and VERSION arguments is the old style
1059# call (pre autoconf-2.50), which is being phased out.  PACKAGE
1060# and VERSION should now be passed to AC_INIT and removed from
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1062# We support both call styles for the transition.  After
1063# the next Automake release, Autoconf can make the AC_INIT
1064# arguments mandatory, and then we can depend on a new Autoconf
1065# release and drop the old call support.
1066AC_DEFUN([AM_INIT_AUTOMAKE],
1067[AC_PREREQ([2.65])dnl
1068dnl Autoconf wants to disallow AM_ names.  We explicitly allow
1069dnl the ones we care about.
1070m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
1071AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
1072AC_REQUIRE([AC_PROG_INSTALL])dnl
1073if test "`cd $srcdir && pwd`" != "`pwd`"; then
1074  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
1075  # is not polluted with repeated "-I."
1076  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
1077  # test to see if srcdir already configured
1078  if test -f $srcdir/config.status; then
1079    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
1080  fi
1081fi
1082
1083# test whether we have cygpath
1084if test -z "$CYGPATH_W"; then
1085  if (cygpath --version) >/dev/null 2>/dev/null; then
1086    CYGPATH_W='cygpath -w'
1087  else
1088    CYGPATH_W=echo
1089  fi
1090fi
1091AC_SUBST([CYGPATH_W])
1092
1093# Define the identity of the package.
1094dnl Distinguish between old-style and new-style calls.
1095m4_ifval([$2],
1096[AC_DIAGNOSE([obsolete],
1097             [$0: two- and three-arguments forms are deprecated.])
1098m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
1099 AC_SUBST([PACKAGE], [$1])dnl
1100 AC_SUBST([VERSION], [$2])],
1101[_AM_SET_OPTIONS([$1])dnl
1102dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
1103m4_if(
1104  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
1105  [ok:ok],,
1106  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
1107 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
1108 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
1109
1110_AM_IF_OPTION([no-define],,
1111[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
1112 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
1113
1114# Some tools Automake needs.
1115AC_REQUIRE([AM_SANITY_CHECK])dnl
1116AC_REQUIRE([AC_ARG_PROGRAM])dnl
1117AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
1118AM_MISSING_PROG([AUTOCONF], [autoconf])
1119AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
1120AM_MISSING_PROG([AUTOHEADER], [autoheader])
1121AM_MISSING_PROG([MAKEINFO], [makeinfo])
1122AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1123AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
1124AC_REQUIRE([AC_PROG_MKDIR_P])dnl
1125# For better backward compatibility.  To be removed once Automake 1.9.x
1126# dies out for good.  For more background, see:
1127# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
1128# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
1129AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
1130# We need awk for the "check" target (and possibly the TAP driver).  The
1131# system "awk" is bad on some platforms.
1132AC_REQUIRE([AC_PROG_AWK])dnl
1133AC_REQUIRE([AC_PROG_MAKE_SET])dnl
1134AC_REQUIRE([AM_SET_LEADING_DOT])dnl
1135_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
1136	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
1137			     [_AM_PROG_TAR([v7])])])
1138_AM_IF_OPTION([no-dependencies],,
1139[AC_PROVIDE_IFELSE([AC_PROG_CC],
1140		  [_AM_DEPENDENCIES([CC])],
1141		  [m4_define([AC_PROG_CC],
1142			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
1143AC_PROVIDE_IFELSE([AC_PROG_CXX],
1144		  [_AM_DEPENDENCIES([CXX])],
1145		  [m4_define([AC_PROG_CXX],
1146			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
1147AC_PROVIDE_IFELSE([AC_PROG_OBJC],
1148		  [_AM_DEPENDENCIES([OBJC])],
1149		  [m4_define([AC_PROG_OBJC],
1150			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
1151AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
1152		  [_AM_DEPENDENCIES([OBJCXX])],
1153		  [m4_define([AC_PROG_OBJCXX],
1154			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
1155])
1156AC_REQUIRE([AM_SILENT_RULES])dnl
1157dnl The testsuite driver may need to know about EXEEXT, so add the
1158dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
1159dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
1160AC_CONFIG_COMMANDS_PRE(dnl
1161[m4_provide_if([_AM_COMPILER_EXEEXT],
1162  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
1163
1164# POSIX will say in a future version that running "rm -f" with no argument
1165# is OK; and we want to be able to make that assumption in our Makefile
1166# recipes.  So use an aggressive probe to check that the usage we want is
1167# actually supported "in the wild" to an acceptable degree.
1168# See automake bug#10828.
1169# To make any issue more visible, cause the running configure to be aborted
1170# by default if the 'rm' program in use doesn't match our expectations; the
1171# user can still override this though.
1172if rm -f && rm -fr && rm -rf; then : OK; else
1173  cat >&2 <<'END'
1174Oops!
1175
1176Your 'rm' program seems unable to run without file operands specified
1177on the command line, even when the '-f' option is present.  This is contrary
1178to the behaviour of most rm programs out there, and not conforming with
1179the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
1180
1181Please tell bug-automake@gnu.org about your system, including the value
1182of your $PATH and any error possibly output before this message.  This
1183can help us improve future automake versions.
1184
1185END
1186  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
1187    echo 'Configuration will proceed anyway, since you have set the' >&2
1188    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
1189    echo >&2
1190  else
1191    cat >&2 <<'END'
1192Aborting the configuration process, to ensure you take notice of the issue.
1193
1194You can download and install GNU coreutils to get an 'rm' implementation
1195that behaves properly: <https://www.gnu.org/software/coreutils/>.
1196
1197If you want to complete the configuration process using your problematic
1198'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
1199to "yes", and re-run configure.
1200
1201END
1202    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
1203  fi
1204fi
1205dnl The trailing newline in this macro's definition is deliberate, for
1206dnl backward compatibility and to allow trailing 'dnl'-style comments
1207dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
1208])
1209
1210dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
1211dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
1212dnl mangled by Autoconf and run in a shell conditional statement.
1213m4_define([_AC_COMPILER_EXEEXT],
1214m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
1215
1216# When config.status generates a header, we must update the stamp-h file.
1217# This file resides in the same directory as the config header
1218# that is generated.  The stamp files are numbered to have different names.
1219
1220# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
1221# loop where config.status creates the headers, so we can generate
1222# our stamp files there.
1223AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
1224[# Compute $1's index in $config_headers.
1225_am_arg=$1
1226_am_stamp_count=1
1227for _am_header in $config_headers :; do
1228  case $_am_header in
1229    $_am_arg | $_am_arg:* )
1230      break ;;
1231    * )
1232      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
1233  esac
1234done
1235echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
1236
1237# Copyright (C) 2001-2018 Free Software Foundation, Inc.
1238#
1239# This file is free software; the Free Software Foundation
1240# gives unlimited permission to copy and/or distribute it,
1241# with or without modifications, as long as this notice is preserved.
1242
1243# AM_PROG_INSTALL_SH
1244# ------------------
1245# Define $install_sh.
1246AC_DEFUN([AM_PROG_INSTALL_SH],
1247[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1248if test x"${install_sh+set}" != xset; then
1249  case $am_aux_dir in
1250  *\ * | *\	*)
1251    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
1252  *)
1253    install_sh="\${SHELL} $am_aux_dir/install-sh"
1254  esac
1255fi
1256AC_SUBST([install_sh])])
1257
1258# Copyright (C) 2003-2018 Free Software Foundation, Inc.
1259#
1260# This file is free software; the Free Software Foundation
1261# gives unlimited permission to copy and/or distribute it,
1262# with or without modifications, as long as this notice is preserved.
1263
1264# Check whether the underlying file-system supports filenames
1265# with a leading dot.  For instance MS-DOS doesn't.
1266AC_DEFUN([AM_SET_LEADING_DOT],
1267[rm -rf .tst 2>/dev/null
1268mkdir .tst 2>/dev/null
1269if test -d .tst; then
1270  am__leading_dot=.
1271else
1272  am__leading_dot=_
1273fi
1274rmdir .tst 2>/dev/null
1275AC_SUBST([am__leading_dot])])
1276
1277# Check to see how 'make' treats includes.	            -*- Autoconf -*-
1278
1279# Copyright (C) 2001-2018 Free Software Foundation, Inc.
1280#
1281# This file is free software; the Free Software Foundation
1282# gives unlimited permission to copy and/or distribute it,
1283# with or without modifications, as long as this notice is preserved.
1284
1285# AM_MAKE_INCLUDE()
1286# -----------------
1287# Check whether make has an 'include' directive that can support all
1288# the idioms we need for our automatic dependency tracking code.
1289AC_DEFUN([AM_MAKE_INCLUDE],
1290[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
1291cat > confinc.mk << 'END'
1292am__doit:
1293	@echo this is the am__doit target >confinc.out
1294.PHONY: am__doit
1295END
1296am__include="#"
1297am__quote=
1298# BSD make does it like this.
1299echo '.include "confinc.mk" # ignored' > confmf.BSD
1300# Other make implementations (GNU, Solaris 10, AIX) do it like this.
1301echo 'include confinc.mk # ignored' > confmf.GNU
1302_am_result=no
1303for s in GNU BSD; do
1304  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
1305  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
1306      ['0:this is the am__doit target'],
1307      [AS_CASE([$s],
1308          [BSD], [am__include='.include' am__quote='"'],
1309          [am__include='include' am__quote=''])])
1310  if test "$am__include" != "#"; then
1311    _am_result="yes ($s style)"
1312    break
1313  fi
1314done
1315rm -f confinc.* confmf.*
1316AC_MSG_RESULT([${_am_result}])
1317AC_SUBST([am__include])])
1318AC_SUBST([am__quote])])
1319
1320# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
1321
1322# Copyright (C) 1997-2018 Free Software Foundation, Inc.
1323#
1324# This file is free software; the Free Software Foundation
1325# gives unlimited permission to copy and/or distribute it,
1326# with or without modifications, as long as this notice is preserved.
1327
1328# AM_MISSING_PROG(NAME, PROGRAM)
1329# ------------------------------
1330AC_DEFUN([AM_MISSING_PROG],
1331[AC_REQUIRE([AM_MISSING_HAS_RUN])
1332$1=${$1-"${am_missing_run}$2"}
1333AC_SUBST($1)])
1334
1335# AM_MISSING_HAS_RUN
1336# ------------------
1337# Define MISSING if not defined so far and test if it is modern enough.
1338# If it is, set am_missing_run to use it, otherwise, to nothing.
1339AC_DEFUN([AM_MISSING_HAS_RUN],
1340[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1341AC_REQUIRE_AUX_FILE([missing])dnl
1342if test x"${MISSING+set}" != xset; then
1343  case $am_aux_dir in
1344  *\ * | *\	*)
1345    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
1346  *)
1347    MISSING="\${SHELL} $am_aux_dir/missing" ;;
1348  esac
1349fi
1350# Use eval to expand $SHELL
1351if eval "$MISSING --is-lightweight"; then
1352  am_missing_run="$MISSING "
1353else
1354  am_missing_run=
1355  AC_MSG_WARN(['missing' script is too old or missing])
1356fi
1357])
1358
1359# Helper functions for option handling.                     -*- Autoconf -*-
1360
1361# Copyright (C) 2001-2018 Free Software Foundation, Inc.
1362#
1363# This file is free software; the Free Software Foundation
1364# gives unlimited permission to copy and/or distribute it,
1365# with or without modifications, as long as this notice is preserved.
1366
1367# _AM_MANGLE_OPTION(NAME)
1368# -----------------------
1369AC_DEFUN([_AM_MANGLE_OPTION],
1370[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
1371
1372# _AM_SET_OPTION(NAME)
1373# --------------------
1374# Set option NAME.  Presently that only means defining a flag for this option.
1375AC_DEFUN([_AM_SET_OPTION],
1376[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1377
1378# _AM_SET_OPTIONS(OPTIONS)
1379# ------------------------
1380# OPTIONS is a space-separated list of Automake options.
1381AC_DEFUN([_AM_SET_OPTIONS],
1382[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
1383
1384# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
1385# -------------------------------------------
1386# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
1387AC_DEFUN([_AM_IF_OPTION],
1388[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
1389
1390# Copyright (C) 1999-2018 Free Software Foundation, Inc.
1391#
1392# This file is free software; the Free Software Foundation
1393# gives unlimited permission to copy and/or distribute it,
1394# with or without modifications, as long as this notice is preserved.
1395
1396# _AM_PROG_CC_C_O
1397# ---------------
1398# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
1399# to automatically call this.
1400AC_DEFUN([_AM_PROG_CC_C_O],
1401[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1402AC_REQUIRE_AUX_FILE([compile])dnl
1403AC_LANG_PUSH([C])dnl
1404AC_CACHE_CHECK(
1405  [whether $CC understands -c and -o together],
1406  [am_cv_prog_cc_c_o],
1407  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
1408  # Make sure it works both with $CC and with simple cc.
1409  # Following AC_PROG_CC_C_O, we do the test twice because some
1410  # compilers refuse to overwrite an existing .o file with -o,
1411  # though they will create one.
1412  am_cv_prog_cc_c_o=yes
1413  for am_i in 1 2; do
1414    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
1415         && test -f conftest2.$ac_objext; then
1416      : OK
1417    else
1418      am_cv_prog_cc_c_o=no
1419      break
1420    fi
1421  done
1422  rm -f core conftest*
1423  unset am_i])
1424if test "$am_cv_prog_cc_c_o" != yes; then
1425   # Losing compiler, so override with the script.
1426   # FIXME: It is wrong to rewrite CC.
1427   # But if we don't then we get into trouble of one sort or another.
1428   # A longer-term fix would be to have automake use am__CC in this case,
1429   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
1430   CC="$am_aux_dir/compile $CC"
1431fi
1432AC_LANG_POP([C])])
1433
1434# For backward compatibility.
1435AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
1436
1437# Copyright (C) 2001-2018 Free Software Foundation, Inc.
1438#
1439# This file is free software; the Free Software Foundation
1440# gives unlimited permission to copy and/or distribute it,
1441# with or without modifications, as long as this notice is preserved.
1442
1443# AM_RUN_LOG(COMMAND)
1444# -------------------
1445# Run COMMAND, save the exit status in ac_status, and log it.
1446# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
1447AC_DEFUN([AM_RUN_LOG],
1448[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
1449   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
1450   ac_status=$?
1451   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
1452   (exit $ac_status); }])
1453
1454# Check to make sure that the build environment is sane.    -*- Autoconf -*-
1455
1456# Copyright (C) 1996-2018 Free Software Foundation, Inc.
1457#
1458# This file is free software; the Free Software Foundation
1459# gives unlimited permission to copy and/or distribute it,
1460# with or without modifications, as long as this notice is preserved.
1461
1462# AM_SANITY_CHECK
1463# ---------------
1464AC_DEFUN([AM_SANITY_CHECK],
1465[AC_MSG_CHECKING([whether build environment is sane])
1466# Reject unsafe characters in $srcdir or the absolute working directory
1467# name.  Accept space and tab only in the latter.
1468am_lf='
1469'
1470case `pwd` in
1471  *[[\\\"\#\$\&\'\`$am_lf]]*)
1472    AC_MSG_ERROR([unsafe absolute working directory name]);;
1473esac
1474case $srcdir in
1475  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
1476    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1477esac
1478
1479# Do 'set' in a subshell so we don't clobber the current shell's
1480# arguments.  Must try -L first in case configure is actually a
1481# symlink; some systems play weird games with the mod time of symlinks
1482# (eg FreeBSD returns the mod time of the symlink's containing
1483# directory).
1484if (
1485   am_has_slept=no
1486   for am_try in 1 2; do
1487     echo "timestamp, slept: $am_has_slept" > conftest.file
1488     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1489     if test "$[*]" = "X"; then
1490	# -L didn't work.
1491	set X `ls -t "$srcdir/configure" conftest.file`
1492     fi
1493     if test "$[*]" != "X $srcdir/configure conftest.file" \
1494	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
1495
1496	# If neither matched, then we have a broken ls.  This can happen
1497	# if, for instance, CONFIG_SHELL is bash and it inherits a
1498	# broken ls alias from the environment.  This has actually
1499	# happened.  Such a system could not be considered "sane".
1500	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
1501  alias in your environment])
1502     fi
1503     if test "$[2]" = conftest.file || test $am_try -eq 2; then
1504       break
1505     fi
1506     # Just in case.
1507     sleep 1
1508     am_has_slept=yes
1509   done
1510   test "$[2]" = conftest.file
1511   )
1512then
1513   # Ok.
1514   :
1515else
1516   AC_MSG_ERROR([newly created file is older than distributed files!
1517Check your system clock])
1518fi
1519AC_MSG_RESULT([yes])
1520# If we didn't sleep, we still need to ensure time stamps of config.status and
1521# generated files are strictly newer.
1522am_sleep_pid=
1523if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1524  ( sleep 1 ) &
1525  am_sleep_pid=$!
1526fi
1527AC_CONFIG_COMMANDS_PRE(
1528  [AC_MSG_CHECKING([that generated files are newer than configure])
1529   if test -n "$am_sleep_pid"; then
1530     # Hide warnings about reused PIDs.
1531     wait $am_sleep_pid 2>/dev/null
1532   fi
1533   AC_MSG_RESULT([done])])
1534rm -f conftest.file
1535])
1536
1537# Copyright (C) 2009-2018 Free Software Foundation, Inc.
1538#
1539# This file is free software; the Free Software Foundation
1540# gives unlimited permission to copy and/or distribute it,
1541# with or without modifications, as long as this notice is preserved.
1542
1543# AM_SILENT_RULES([DEFAULT])
1544# --------------------------
1545# Enable less verbose build rules; with the default set to DEFAULT
1546# ("yes" being less verbose, "no" or empty being verbose).
1547AC_DEFUN([AM_SILENT_RULES],
1548[AC_ARG_ENABLE([silent-rules], [dnl
1549AS_HELP_STRING(
1550  [--enable-silent-rules],
1551  [less verbose build output (undo: "make V=1")])
1552AS_HELP_STRING(
1553  [--disable-silent-rules],
1554  [verbose build output (undo: "make V=0")])dnl
1555])
1556case $enable_silent_rules in @%:@ (((
1557  yes) AM_DEFAULT_VERBOSITY=0;;
1558   no) AM_DEFAULT_VERBOSITY=1;;
1559    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1560esac
1561dnl
1562dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1563dnl do not support nested variable expansions.
1564dnl See automake bug#9928 and bug#10237.
1565am_make=${MAKE-make}
1566AC_CACHE_CHECK([whether $am_make supports nested variables],
1567   [am_cv_make_support_nested_variables],
1568   [if AS_ECHO([['TRUE=$(BAR$(V))
1569BAR0=false
1570BAR1=true
1571V=1
1572am__doit:
1573	@$(TRUE)
1574.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1575  am_cv_make_support_nested_variables=yes
1576else
1577  am_cv_make_support_nested_variables=no
1578fi])
1579if test $am_cv_make_support_nested_variables = yes; then
1580  dnl Using '$V' instead of '$(V)' breaks IRIX make.
1581  AM_V='$(V)'
1582  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1583else
1584  AM_V=$AM_DEFAULT_VERBOSITY
1585  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1586fi
1587AC_SUBST([AM_V])dnl
1588AM_SUBST_NOTMAKE([AM_V])dnl
1589AC_SUBST([AM_DEFAULT_V])dnl
1590AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1591AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1592AM_BACKSLASH='\'
1593AC_SUBST([AM_BACKSLASH])dnl
1594_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1595])
1596
1597# Copyright (C) 2001-2018 Free Software Foundation, Inc.
1598#
1599# This file is free software; the Free Software Foundation
1600# gives unlimited permission to copy and/or distribute it,
1601# with or without modifications, as long as this notice is preserved.
1602
1603# AM_PROG_INSTALL_STRIP
1604# ---------------------
1605# One issue with vendor 'install' (even GNU) is that you can't
1606# specify the program used to strip binaries.  This is especially
1607# annoying in cross-compiling environments, where the build's strip
1608# is unlikely to handle the host's binaries.
1609# Fortunately install-sh will honor a STRIPPROG variable, so we
1610# always use install-sh in "make install-strip", and initialize
1611# STRIPPROG with the value of the STRIP variable (set by the user).
1612AC_DEFUN([AM_PROG_INSTALL_STRIP],
1613[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1614# Installed binaries are usually stripped using 'strip' when the user
1615# run "make install-strip".  However 'strip' might not be the right
1616# tool to use in cross-compilation environments, therefore Automake
1617# will honor the 'STRIP' environment variable to overrule this program.
1618dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1619if test "$cross_compiling" != no; then
1620  AC_CHECK_TOOL([STRIP], [strip], :)
1621fi
1622INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1623AC_SUBST([INSTALL_STRIP_PROGRAM])])
1624
1625# Copyright (C) 2006-2018 Free Software Foundation, Inc.
1626#
1627# This file is free software; the Free Software Foundation
1628# gives unlimited permission to copy and/or distribute it,
1629# with or without modifications, as long as this notice is preserved.
1630
1631# _AM_SUBST_NOTMAKE(VARIABLE)
1632# ---------------------------
1633# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1634# This macro is traced by Automake.
1635AC_DEFUN([_AM_SUBST_NOTMAKE])
1636
1637# AM_SUBST_NOTMAKE(VARIABLE)
1638# --------------------------
1639# Public sister of _AM_SUBST_NOTMAKE.
1640AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1641
1642# Check how to create a tarball.                            -*- Autoconf -*-
1643
1644# Copyright (C) 2004-2018 Free Software Foundation, Inc.
1645#
1646# This file is free software; the Free Software Foundation
1647# gives unlimited permission to copy and/or distribute it,
1648# with or without modifications, as long as this notice is preserved.
1649
1650# _AM_PROG_TAR(FORMAT)
1651# --------------------
1652# Check how to create a tarball in format FORMAT.
1653# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1654#
1655# Substitute a variable $(am__tar) that is a command
1656# writing to stdout a FORMAT-tarball containing the directory
1657# $tardir.
1658#     tardir=directory && $(am__tar) > result.tar
1659#
1660# Substitute a variable $(am__untar) that extract such
1661# a tarball read from stdin.
1662#     $(am__untar) < result.tar
1663#
1664AC_DEFUN([_AM_PROG_TAR],
1665[# Always define AMTAR for backward compatibility.  Yes, it's still used
1666# in the wild :-(  We should find a proper way to deprecate it ...
1667AC_SUBST([AMTAR], ['$${TAR-tar}'])
1668
1669# We'll loop over all known methods to create a tar archive until one works.
1670_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1671
1672m4_if([$1], [v7],
1673  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1674
1675  [m4_case([$1],
1676    [ustar],
1677     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1678      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1679      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1680      # and bug#13588).
1681      am_max_uid=2097151 # 2^21 - 1
1682      am_max_gid=$am_max_uid
1683      # The $UID and $GID variables are not portable, so we need to resort
1684      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1685      # below are definitely unexpected, so allow the users to see them
1686      # (that is, avoid stderr redirection).
1687      am_uid=`id -u || echo unknown`
1688      am_gid=`id -g || echo unknown`
1689      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1690      if test $am_uid -le $am_max_uid; then
1691         AC_MSG_RESULT([yes])
1692      else
1693         AC_MSG_RESULT([no])
1694         _am_tools=none
1695      fi
1696      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1697      if test $am_gid -le $am_max_gid; then
1698         AC_MSG_RESULT([yes])
1699      else
1700        AC_MSG_RESULT([no])
1701        _am_tools=none
1702      fi],
1703
1704  [pax],
1705    [],
1706
1707  [m4_fatal([Unknown tar format])])
1708
1709  AC_MSG_CHECKING([how to create a $1 tar archive])
1710
1711  # Go ahead even if we have the value already cached.  We do so because we
1712  # need to set the values for the 'am__tar' and 'am__untar' variables.
1713  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1714
1715  for _am_tool in $_am_tools; do
1716    case $_am_tool in
1717    gnutar)
1718      for _am_tar in tar gnutar gtar; do
1719        AM_RUN_LOG([$_am_tar --version]) && break
1720      done
1721      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1722      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1723      am__untar="$_am_tar -xf -"
1724      ;;
1725    plaintar)
1726      # Must skip GNU tar: if it does not support --format= it doesn't create
1727      # ustar tarball either.
1728      (tar --version) >/dev/null 2>&1 && continue
1729      am__tar='tar chf - "$$tardir"'
1730      am__tar_='tar chf - "$tardir"'
1731      am__untar='tar xf -'
1732      ;;
1733    pax)
1734      am__tar='pax -L -x $1 -w "$$tardir"'
1735      am__tar_='pax -L -x $1 -w "$tardir"'
1736      am__untar='pax -r'
1737      ;;
1738    cpio)
1739      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1740      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1741      am__untar='cpio -i -H $1 -d'
1742      ;;
1743    none)
1744      am__tar=false
1745      am__tar_=false
1746      am__untar=false
1747      ;;
1748    esac
1749
1750    # If the value was cached, stop now.  We just wanted to have am__tar
1751    # and am__untar set.
1752    test -n "${am_cv_prog_tar_$1}" && break
1753
1754    # tar/untar a dummy directory, and stop if the command works.
1755    rm -rf conftest.dir
1756    mkdir conftest.dir
1757    echo GrepMe > conftest.dir/file
1758    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1759    rm -rf conftest.dir
1760    if test -s conftest.tar; then
1761      AM_RUN_LOG([$am__untar <conftest.tar])
1762      AM_RUN_LOG([cat conftest.dir/file])
1763      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1764    fi
1765  done
1766  rm -rf conftest.dir
1767
1768  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1769  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1770
1771AC_SUBST([am__tar])
1772AC_SUBST([am__untar])
1773]) # _AM_PROG_TAR
1774
1775m4_include([platform/unix/m4/libtool.m4])
1776m4_include([platform/unix/m4/ltoptions.m4])
1777m4_include([platform/unix/m4/ltsugar.m4])
1778m4_include([platform/unix/m4/ltversion.m4])
1779m4_include([platform/unix/m4/lt~obsolete.m4])
1780