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This is especially 642# annoying in cross-compiling environments, where the build's strip 643# is unlikely to handle the host's binaries. 644# Fortunately install-sh will honor a STRIPPROG variable, so we 645# always use install-sh in "make install-strip", and initialize 646# STRIPPROG with the value of the STRIP variable (set by the user). 647AC_DEFUN([AM_PROG_INSTALL_STRIP], 648[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl 649# Installed binaries are usually stripped using 'strip' when the user 650# run "make install-strip". However 'strip' might not be the right 651# tool to use in cross-compilation environments, therefore Automake 652# will honor the 'STRIP' environment variable to overrule this program. 653dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. 654if test "$cross_compiling" != no; then 655 AC_CHECK_TOOL([STRIP], [strip], :) 656fi 657INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" 658AC_SUBST([INSTALL_STRIP_PROGRAM])]) 659 660# Copyright (C) 2006-2017 Free Software Foundation, Inc. 661# 662# This file is free software; the Free Software Foundation 663# gives unlimited permission to copy and/or distribute it, 664# with or without modifications, as long as this notice is preserved. 665 666# _AM_SUBST_NOTMAKE(VARIABLE) 667# --------------------------- 668# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. 669# This macro is traced by Automake. 670AC_DEFUN([_AM_SUBST_NOTMAKE]) 671 672# AM_SUBST_NOTMAKE(VARIABLE) 673# -------------------------- 674# Public sister of _AM_SUBST_NOTMAKE. 675AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) 676 677# Check how to create a tarball. -*- Autoconf -*- 678 679# Copyright (C) 2004-2017 Free Software Foundation, Inc. 680# 681# This file is free software; the Free Software Foundation 682# gives unlimited permission to copy and/or distribute it, 683# with or without modifications, as long as this notice is preserved. 684 685# _AM_PROG_TAR(FORMAT) 686# -------------------- 687# Check how to create a tarball in format FORMAT. 688# FORMAT should be one of 'v7', 'ustar', or 'pax'. 689# 690# Substitute a variable $(am__tar) that is a command 691# writing to stdout a FORMAT-tarball containing the directory 692# $tardir. 693# tardir=directory && $(am__tar) > result.tar 694# 695# Substitute a variable $(am__untar) that extract such 696# a tarball read from stdin. 697# $(am__untar) < result.tar 698# 699AC_DEFUN([_AM_PROG_TAR], 700[# Always define AMTAR for backward compatibility. Yes, it's still used 701# in the wild :-( We should find a proper way to deprecate it ... 702AC_SUBST([AMTAR], ['$${TAR-tar}']) 703 704# We'll loop over all known methods to create a tar archive until one works. 705_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' 706 707m4_if([$1], [v7], 708 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], 709 710 [m4_case([$1], 711 [ustar], 712 [# The POSIX 1988 'ustar' format is defined with fixed-size fields. 713 # There is notably a 21 bits limit for the UID and the GID. In fact, 714 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 715 # and bug#13588). 716 am_max_uid=2097151 # 2^21 - 1 717 am_max_gid=$am_max_uid 718 # The $UID and $GID variables are not portable, so we need to resort 719 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls 720 # below are definitely unexpected, so allow the users to see them 721 # (that is, avoid stderr redirection). 722 am_uid=`id -u || echo unknown` 723 am_gid=`id -g || echo unknown` 724 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) 725 if test $am_uid -le $am_max_uid; then 726 AC_MSG_RESULT([yes]) 727 else 728 AC_MSG_RESULT([no]) 729 _am_tools=none 730 fi 731 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) 732 if test $am_gid -le $am_max_gid; then 733 AC_MSG_RESULT([yes]) 734 else 735 AC_MSG_RESULT([no]) 736 _am_tools=none 737 fi], 738 739 [pax], 740 [], 741 742 [m4_fatal([Unknown tar format])]) 743 744 AC_MSG_CHECKING([how to create a $1 tar archive]) 745 746 # Go ahead even if we have the value already cached. We do so because we 747 # need to set the values for the 'am__tar' and 'am__untar' variables. 748 _am_tools=${am_cv_prog_tar_$1-$_am_tools} 749 750 for _am_tool in $_am_tools; do 751 case $_am_tool in 752 gnutar) 753 for _am_tar in tar gnutar gtar; do 754 AM_RUN_LOG([$_am_tar --version]) && break 755 done 756 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' 757 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' 758 am__untar="$_am_tar -xf -" 759 ;; 760 plaintar) 761 # Must skip GNU tar: if it does not support --format= it doesn't create 762 # ustar tarball either. 763 (tar --version) >/dev/null 2>&1 && continue 764 am__tar='tar chf - "$$tardir"' 765 am__tar_='tar chf - "$tardir"' 766 am__untar='tar xf -' 767 ;; 768 pax) 769 am__tar='pax -L -x $1 -w "$$tardir"' 770 am__tar_='pax -L -x $1 -w "$tardir"' 771 am__untar='pax -r' 772 ;; 773 cpio) 774 am__tar='find "$$tardir" -print | cpio -o -H $1 -L' 775 am__tar_='find "$tardir" -print | cpio -o -H $1 -L' 776 am__untar='cpio -i -H $1 -d' 777 ;; 778 none) 779 am__tar=false 780 am__tar_=false 781 am__untar=false 782 ;; 783 esac 784 785 # If the value was cached, stop now. We just wanted to have am__tar 786 # and am__untar set. 787 test -n "${am_cv_prog_tar_$1}" && break 788 789 # tar/untar a dummy directory, and stop if the command works. 790 rm -rf conftest.dir 791 mkdir conftest.dir 792 echo GrepMe > conftest.dir/file 793 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) 794 rm -rf conftest.dir 795 if test -s conftest.tar; then 796 AM_RUN_LOG([$am__untar <conftest.tar]) 797 AM_RUN_LOG([cat conftest.dir/file]) 798 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break 799 fi 800 done 801 rm -rf conftest.dir 802 803 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) 804 AC_MSG_RESULT([$am_cv_prog_tar_$1])]) 805 806AC_SUBST([am__tar]) 807AC_SUBST([am__untar]) 808]) # _AM_PROG_TAR 809 810