comparison aclocal.m4 @ 7:7e50d576470d 1.0 1.0 1.1

Added build system files
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date Sat, 04 Oct 2008 03:26:25 +0000
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6:e91b8529b920 7:7e50d576470d
1 # generated automatically by aclocal 1.10.1 -*- Autoconf -*-
2
3 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4 # 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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
14 m4_ifndef([AC_AUTOCONF_VERSION],
15 [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
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17 [m4_warning([this file was generated for autoconf 2.61.
18 You have another version of autoconf. It may work, but is not guaranteed to.
19 If you have problems, you may need to regenerate the build system entirely.
20 To do so, use the procedure documented by the package, typically `autoreconf'.])])
21
22 # Copyright (C) 2002, 2003, 2005, 2006, 2007 Free Software Foundation, Inc.
23 #
24 # This file is free software; the Free Software Foundation
25 # gives unlimited permission to copy and/or distribute it,
26 # with or without modifications, as long as this notice is preserved.
27
28 # AM_AUTOMAKE_VERSION(VERSION)
29 # ----------------------------
30 # Automake X.Y traces this macro to ensure aclocal.m4 has been
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57
58 # AM_AUX_DIR_EXPAND -*- Autoconf -*-
59
60 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
61 #
62 # This file is free software; the Free Software Foundation
63 # gives unlimited permission to copy and/or distribute it,
64 # with or without modifications, as long as this notice is preserved.
65
66 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
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111 # AM_CONDITIONAL -*- Autoconf -*-
112
113 # Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006
114 # Free Software Foundation, Inc.
115 #
116 # This file is free software; the Free Software Foundation
117 # gives unlimited permission to copy and/or distribute it,
118 # with or without modifications, as long as this notice is preserved.
119
120 # serial 8
121
122 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
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126 [AC_PREREQ(2.52)dnl
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145
146 # Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
147 # Free Software Foundation, Inc.
148 #
149 # This file is free software; the Free Software Foundation
150 # gives unlimited permission to copy and/or distribute it,
151 # with or without modifications, as long as this notice is preserved.
152
153 # serial 9
154
155 # There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
156 # written in clear, in which case automake, when reading aclocal.m4,
157 # will think it sees a *use*, and therefore will trigger all it's
158 # C support machinery. Also note that it means that autoscan, seeing
159 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
160
161
162 # _AM_DEPENDENCIES(NAME)
163 # ----------------------
164 # See how the compiler implements dependency checking.
165 # NAME is "CC", "CXX", "GCJ", or "OBJC".
166 # We try a few techniques and use that to set a single cache variable.
167 #
168 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
169 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
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172 AC_DEFUN([_AM_DEPENDENCIES],
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174 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
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176 AC_REQUIRE([AM_DEP_TRACK])dnl
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178 ifelse([$1], CC, [depcc="$CC" am_compiler_list=],
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198 # We will build objects and dependencies in a subdirectory because
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200 # both Tru64's cc and ICC support -MD to output dependencies as a
201 # side effect of compilation, but ICC will put the dependencies in
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203 # directory.
204 mkdir sub
205
206 am_cv_$1_dependencies_compiler_type=none
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214 #
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217 # This happens at least with the AIX C compiler.
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219 for i in 1 2 3 4 5 6; do
220 echo '#include "conftst'$i'.h"' >> sub/conftest.c
221 # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
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225 echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
226
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236 ;;
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242 if depmode=$depmode \
243 source=sub/conftest.c object=sub/conftest.${OBJEXT-o} \
244 depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
245 $SHELL ./depcomp $depcc -c -o sub/conftest.${OBJEXT-o} sub/conftest.c \
246 >/dev/null 2>conftest.err &&
247 grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
248 grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
249 grep sub/conftest.${OBJEXT-o} sub/conftest.Po > /dev/null 2>&1 &&
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253 # that says an option was ignored or not supported.
254 # When given -MP, icc 7.0 and 7.1 complain thusly:
255 # icc: Command line warning: ignoring option '-M'; no argument required
256 # The diagnosis changed in icc 8.0:
257 # icc: Command line remark: option '-MP' not supported
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260 am_cv_$1_dependencies_compiler_type=$depmode
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266 cd ..
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269 am_cv_$1_dependencies_compiler_type=none
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273 AM_CONDITIONAL([am__fastdep$1], [
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277
278
279 # AM_SET_DEPDIR
280 # -------------
281 # Choose a directory name for dependency files.
282 # This macro is AC_REQUIREd in _AM_DEPENDENCIES
283 AC_DEFUN([AM_SET_DEPDIR],
284 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
285 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
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287
288
289 # AM_DEP_TRACK
290 # ------------
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292 [AC_ARG_ENABLE(dependency-tracking,
293 [ --disable-dependency-tracking speeds up one-time build
294 --enable-dependency-tracking do not reject slow dependency extractors])
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297 AMDEPBACKSLASH='\'
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300 AC_SUBST([AMDEPBACKSLASH])dnl
301 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
302 ])
303
304 # Generate code to set up dependency tracking. -*- Autoconf -*-
305
306 # Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005
307 # Free Software Foundation, Inc.
308 #
309 # This file is free software; the Free Software Foundation
310 # gives unlimited permission to copy and/or distribute it,
311 # with or without modifications, as long as this notice is preserved.
312
313 #serial 3
314
315 # _AM_OUTPUT_DEPENDENCY_COMMANDS
316 # ------------------------------
317 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
318 [for mf in $CONFIG_FILES; do
319 # Strip MF so we end up with the name of the file.
320 mf=`echo "$mf" | sed -e 's/:.*$//'`
321 # Check whether this is an Automake generated Makefile or not.
322 # We used to match only the files named `Makefile.in', but
323 # some people rename them; so instead we look at the file content.
324 # Grep'ing the first line is not enough: some people post-process
325 # each Makefile.in and add a new line on top of each file to say so.
326 # Grep'ing the whole file is not good either: AIX grep has a line
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344 # simplest approach to changing $(DEPDIR) to its actual value in the
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346 for file in `sed -n "
347 s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
348 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
349 # Make sure the directory exists.
350 test -f "$dirpart/$file" && continue
351 fdir=`AS_DIRNAME(["$file"])`
352 AS_MKDIR_P([$dirpart/$fdir])
353 # echo "creating $dirpart/$file"
354 echo '# dummy' > "$dirpart/$file"
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356 done
357 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
358
359
360 # AM_OUTPUT_DEPENDENCY_COMMANDS
361 # -----------------------------
362 # This macro should only be invoked once -- use via AC_REQUIRE.
363 #
364 # This code is only required when automatic dependency tracking
365 # is enabled. FIXME. This creates each `.P' file that we will
366 # need in order to bootstrap the dependency handling code.
367 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
368 [AC_CONFIG_COMMANDS([depfiles],
369 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
370 [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
371 ])
372
373 # Do all the work for Automake. -*- Autoconf -*-
374
375 # Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
376 # 2005, 2006, 2008 Free Software Foundation, Inc.
377 #
378 # This file is free software; the Free Software Foundation
379 # gives unlimited permission to copy and/or distribute it,
380 # with or without modifications, as long as this notice is preserved.
381
382 # serial 13
383
384 # This macro actually does too much. Some checks are only needed if
385 # your package does certain things. But this isn't really a big deal.
386
387 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
388 # AM_INIT_AUTOMAKE([OPTIONS])
389 # -----------------------------------------------
390 # The call with PACKAGE and VERSION arguments is the old style
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392 # and VERSION should now be passed to AC_INIT and removed from
393 # the call to AM_INIT_AUTOMAKE.
394 # We support both call styles for the transition. After
395 # the next Automake release, Autoconf can make the AC_INIT
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398 AC_DEFUN([AM_INIT_AUTOMAKE],
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409 # test to see if srcdir already configured
410 if test -f $srcdir/config.status; then
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415 # test whether we have cygpath
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438 _AM_IF_OPTION([no-define],,
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487 _am_arg=$1
488 _am_stamp_count=1
489 for _am_header in $config_headers :; do
490 case $_am_header in
491 $_am_arg | $_am_arg:* )
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494 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
495 esac
496 done
497 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
498
499 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
500 #
501 # This file is free software; the Free Software Foundation
502 # gives unlimited permission to copy and/or distribute it,
503 # with or without modifications, as long as this notice is preserved.
504
505 # AM_PROG_INSTALL_SH
506 # ------------------
507 # Define $install_sh.
508 AC_DEFUN([AM_PROG_INSTALL_SH],
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510 install_sh=${install_sh-"\$(SHELL) $am_aux_dir/install-sh"}
511 AC_SUBST(install_sh)])
512
513 # Copyright (C) 2003, 2005 Free Software Foundation, Inc.
514 #
515 # This file is free software; the Free Software Foundation
516 # gives unlimited permission to copy and/or distribute it,
517 # with or without modifications, as long as this notice is preserved.
518
519 # serial 2
520
521 # Check whether the underlying file-system supports filenames
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523 AC_DEFUN([AM_SET_LEADING_DOT],
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532 AC_SUBST([am__leading_dot])])
533
534 # Check to see how 'make' treats includes. -*- Autoconf -*-
535
536 # Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
537 #
538 # This file is free software; the Free Software Foundation
539 # gives unlimited permission to copy and/or distribute it,
540 # with or without modifications, as long as this notice is preserved.
541
542 # serial 3
543
544 # AM_MAKE_INCLUDE()
545 # -----------------
546 # Check to see how make treats includes.
547 AC_DEFUN([AM_MAKE_INCLUDE],
548 [am_make=${MAKE-make}
549 cat > confinc << 'END'
550 am__doit:
551 @echo done
552 .PHONY: am__doit
553 END
554 # If we don't find an include directive, just comment out the code.
555 AC_MSG_CHECKING([for style of include used by $am_make])
556 am__include="#"
557 am__quote=
558 _am_result=none
559 # First try GNU make style include.
560 echo "include confinc" > confmf
561 # We grep out `Entering directory' and `Leaving directory'
562 # messages which can occur if `w' ends up in MAKEFLAGS.
563 # In particular we don't look at `^make:' because GNU make might
564 # be invoked under some other name (usually "gmake"), in which
565 # case it prints its new name instead of `make'.
566 if test "`$am_make -s -f confmf 2> /dev/null | grep -v 'ing directory'`" = "done"; then
567 am__include=include
568 am__quote=
569 _am_result=GNU
570 fi
571 # Now try BSD make style include.
572 if test "$am__include" = "#"; then
573 echo '.include "confinc"' > confmf
574 if test "`$am_make -s -f confmf 2> /dev/null`" = "done"; then
575 am__include=.include
576 am__quote="\""
577 _am_result=BSD
578 fi
579 fi
580 AC_SUBST([am__include])
581 AC_SUBST([am__quote])
582 AC_MSG_RESULT([$_am_result])
583 rm -f confinc confmf
584 ])
585
586 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
587
588 # Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005
589 # Free Software Foundation, Inc.
590 #
591 # This file is free software; the Free Software Foundation
592 # gives unlimited permission to copy and/or distribute it,
593 # with or without modifications, as long as this notice is preserved.
594
595 # serial 5
596
597 # AM_MISSING_PROG(NAME, PROGRAM)
598 # ------------------------------
599 AC_DEFUN([AM_MISSING_PROG],
600 [AC_REQUIRE([AM_MISSING_HAS_RUN])
601 $1=${$1-"${am_missing_run}$2"}
602 AC_SUBST($1)])
603
604
605 # AM_MISSING_HAS_RUN
606 # ------------------
607 # Define MISSING if not defined so far and test if it supports --run.
608 # If it does, set am_missing_run to use it, otherwise, to nothing.
609 AC_DEFUN([AM_MISSING_HAS_RUN],
610 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
611 AC_REQUIRE_AUX_FILE([missing])dnl
612 test x"${MISSING+set}" = xset || MISSING="\${SHELL} $am_aux_dir/missing"
613 # Use eval to expand $SHELL
614 if eval "$MISSING --run true"; then
615 am_missing_run="$MISSING --run "
616 else
617 am_missing_run=
618 AC_MSG_WARN([`missing' script is too old or missing])
619 fi
620 ])
621
622 # Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
623 #
624 # This file is free software; the Free Software Foundation
625 # gives unlimited permission to copy and/or distribute it,
626 # with or without modifications, as long as this notice is preserved.
627
628 # AM_PROG_MKDIR_P
629 # ---------------
630 # Check for `mkdir -p'.
631 AC_DEFUN([AM_PROG_MKDIR_P],
632 [AC_PREREQ([2.60])dnl
633 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
634 dnl Automake 1.8 to 1.9.6 used to define mkdir_p. We now use MKDIR_P,
635 dnl while keeping a definition of mkdir_p for backward compatibility.
636 dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
637 dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
638 dnl Makefile.ins that do not define MKDIR_P, so we do our own
639 dnl adjustment using top_builddir (which is defined more often than
640 dnl MKDIR_P).
641 AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
642 case $mkdir_p in
643 [[\\/$]]* | ?:[[\\/]]*) ;;
644 */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
645 esac
646 ])
647
648 # Helper functions for option handling. -*- Autoconf -*-
649
650 # Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
651 #
652 # This file is free software; the Free Software Foundation
653 # gives unlimited permission to copy and/or distribute it,
654 # with or without modifications, as long as this notice is preserved.
655
656 # serial 3
657
658 # _AM_MANGLE_OPTION(NAME)
659 # -----------------------
660 AC_DEFUN([_AM_MANGLE_OPTION],
661 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
662
663 # _AM_SET_OPTION(NAME)
664 # ------------------------------
665 # Set option NAME. Presently that only means defining a flag for this option.
666 AC_DEFUN([_AM_SET_OPTION],
667 [m4_define(_AM_MANGLE_OPTION([$1]), 1)])
668
669 # _AM_SET_OPTIONS(OPTIONS)
670 # ----------------------------------
671 # OPTIONS is a space-separated list of Automake options.
672 AC_DEFUN([_AM_SET_OPTIONS],
673 [AC_FOREACH([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
674
675 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
676 # -------------------------------------------
677 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
678 AC_DEFUN([_AM_IF_OPTION],
679 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
680
681 # Check to make sure that the build environment is sane. -*- Autoconf -*-
682
683 # Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
684 # Free Software Foundation, Inc.
685 #
686 # This file is free software; the Free Software Foundation
687 # gives unlimited permission to copy and/or distribute it,
688 # with or without modifications, as long as this notice is preserved.
689
690 # serial 4
691
692 # AM_SANITY_CHECK
693 # ---------------
694 AC_DEFUN([AM_SANITY_CHECK],
695 [AC_MSG_CHECKING([whether build environment is sane])
696 # Just in case
697 sleep 1
698 echo timestamp > conftest.file
699 # Do `set' in a subshell so we don't clobber the current shell's
700 # arguments. Must try -L first in case configure is actually a
701 # symlink; some systems play weird games with the mod time of symlinks
702 # (eg FreeBSD returns the mod time of the symlink's containing
703 # directory).
704 if (
705 set X `ls -Lt $srcdir/configure conftest.file 2> /dev/null`
706 if test "$[*]" = "X"; then
707 # -L didn't work.
708 set X `ls -t $srcdir/configure conftest.file`
709 fi
710 rm -f conftest.file
711 if test "$[*]" != "X $srcdir/configure conftest.file" \
712 && test "$[*]" != "X conftest.file $srcdir/configure"; then
713
714 # If neither matched, then we have a broken ls. This can happen
715 # if, for instance, CONFIG_SHELL is bash and it inherits a
716 # broken ls alias from the environment. This has actually
717 # happened. Such a system could not be considered "sane".
718 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
719 alias in your environment])
720 fi
721
722 test "$[2]" = conftest.file
723 )
724 then
725 # Ok.
726 :
727 else
728 AC_MSG_ERROR([newly created file is older than distributed files!
729 Check your system clock])
730 fi
731 AC_MSG_RESULT(yes)])
732
733 # Copyright (C) 2001, 2003, 2005 Free Software Foundation, Inc.
734 #
735 # This file is free software; the Free Software Foundation
736 # gives unlimited permission to copy and/or distribute it,
737 # with or without modifications, as long as this notice is preserved.
738
739 # AM_PROG_INSTALL_STRIP
740 # ---------------------
741 # One issue with vendor `install' (even GNU) is that you can't
742 # specify the program used to strip binaries. This is especially
743 # annoying in cross-compiling environments, where the build's strip
744 # is unlikely to handle the host's binaries.
745 # Fortunately install-sh will honor a STRIPPROG variable, so we
746 # always use install-sh in `make install-strip', and initialize
747 # STRIPPROG with the value of the STRIP variable (set by the user).
748 AC_DEFUN([AM_PROG_INSTALL_STRIP],
749 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
750 # Installed binaries are usually stripped using `strip' when the user
751 # run `make install-strip'. However `strip' might not be the right
752 # tool to use in cross-compilation environments, therefore Automake
753 # will honor the `STRIP' environment variable to overrule this program.
754 dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
755 if test "$cross_compiling" != no; then
756 AC_CHECK_TOOL([STRIP], [strip], :)
757 fi
758 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
759 AC_SUBST([INSTALL_STRIP_PROGRAM])])
760
761 # Copyright (C) 2006 Free Software Foundation, Inc.
762 #
763 # This file is free software; the Free Software Foundation
764 # gives unlimited permission to copy and/or distribute it,
765 # with or without modifications, as long as this notice is preserved.
766
767 # _AM_SUBST_NOTMAKE(VARIABLE)
768 # ---------------------------
769 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
770 # This macro is traced by Automake.
771 AC_DEFUN([_AM_SUBST_NOTMAKE])
772
773 # Check how to create a tarball. -*- Autoconf -*-
774
775 # Copyright (C) 2004, 2005 Free Software Foundation, Inc.
776 #
777 # This file is free software; the Free Software Foundation
778 # gives unlimited permission to copy and/or distribute it,
779 # with or without modifications, as long as this notice is preserved.
780
781 # serial 2
782
783 # _AM_PROG_TAR(FORMAT)
784 # --------------------
785 # Check how to create a tarball in format FORMAT.
786 # FORMAT should be one of `v7', `ustar', or `pax'.
787 #
788 # Substitute a variable $(am__tar) that is a command
789 # writing to stdout a FORMAT-tarball containing the directory
790 # $tardir.
791 # tardir=directory && $(am__tar) > result.tar
792 #
793 # Substitute a variable $(am__untar) that extract such
794 # a tarball read from stdin.
795 # $(am__untar) < result.tar
796 AC_DEFUN([_AM_PROG_TAR],
797 [# Always define AMTAR for backward compatibility.
798 AM_MISSING_PROG([AMTAR], [tar])
799 m4_if([$1], [v7],
800 [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
801 [m4_case([$1], [ustar],, [pax],,
802 [m4_fatal([Unknown tar format])])
803 AC_MSG_CHECKING([how to create a $1 tar archive])
804 # Loop over all known methods to create a tar archive until one works.
805 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
806 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
807 # Do not fold the above two line into one, because Tru64 sh and
808 # Solaris sh will not grok spaces in the rhs of `-'.
809 for _am_tool in $_am_tools
810 do
811 case $_am_tool in
812 gnutar)
813 for _am_tar in tar gnutar gtar;
814 do
815 AM_RUN_LOG([$_am_tar --version]) && break
816 done
817 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
818 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
819 am__untar="$_am_tar -xf -"
820 ;;
821 plaintar)
822 # Must skip GNU tar: if it does not support --format= it doesn't create
823 # ustar tarball either.
824 (tar --version) >/dev/null 2>&1 && continue
825 am__tar='tar chf - "$$tardir"'
826 am__tar_='tar chf - "$tardir"'
827 am__untar='tar xf -'
828 ;;
829 pax)
830 am__tar='pax -L -x $1 -w "$$tardir"'
831 am__tar_='pax -L -x $1 -w "$tardir"'
832 am__untar='pax -r'
833 ;;
834 cpio)
835 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
836 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
837 am__untar='cpio -i -H $1 -d'
838 ;;
839 none)
840 am__tar=false
841 am__tar_=false
842 am__untar=false
843 ;;
844 esac
845
846 # If the value was cached, stop now. We just wanted to have am__tar
847 # and am__untar set.
848 test -n "${am_cv_prog_tar_$1}" && break
849
850 # tar/untar a dummy directory, and stop if the command works
851 rm -rf conftest.dir
852 mkdir conftest.dir
853 echo GrepMe > conftest.dir/file
854 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
855 rm -rf conftest.dir
856 if test -s conftest.tar; then
857 AM_RUN_LOG([$am__untar <conftest.tar])
858 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
859 fi
860 done
861 rm -rf conftest.dir
862
863 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
864 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
865 AC_SUBST([am__tar])
866 AC_SUBST([am__untar])
867 ]) # _AM_PROG_TAR
868