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| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
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| # This program is distributed in the hope that it will be useful, |
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| # This file is free software; the Free Software Foundation |
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| # AM_PROG_INSTALL_SH |
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| # gives unlimited permission to copy and/or distribute it, |
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| # Copyright (C) 2001-2024 Free Software Foundation, Inc. |
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| # gives unlimited permission to copy and/or distribute it, |
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| # AM_MAKE_INCLUDE() |
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| # Check whether make has an 'include' directive that can support all |
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| # Copyright (C) 2001-2024 Free Software Foundation, Inc. |
| # |
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| # gives unlimited permission to copy and/or distribute it, |
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| # Copyright (C) 1999-2024 Free Software Foundation, Inc. |
| # |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
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| # Losing compiler, so override with the script. |
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| AC_LANG_POP([C])]) |
| |
| # For backward compatibility. |
| AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])]) |
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| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
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| # _AM_PROG_RM_F |
| # --------------- |
| # Check whether 'rm -f' without any arguments works. |
| # https://bugs.gnu.org/10828 |
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| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
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| # AM_RUN_LOG(COMMAND) |
| # ------------------- |
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| AC_DEFUN([AM_RUN_LOG], |
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| (exit $ac_status); }]) |
| |
| # Check to make sure that the build environment is sane. -*- Autoconf -*- |
| |
| # Copyright (C) 1996-2024 Free Software Foundation, Inc. |
| # |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
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| # _AM_SLEEP_FRACTIONAL_SECONDS |
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| # nanosecond, matching clock_gettime. However, it is probably not |
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| # - 1 sec is not much of a win compared to 2 sec, and |
| # - it takes 2 seconds to perform the test whether 1 sec works. |
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| am_try_resolutions= |
| if test "$am_cv_sleep_fractional_seconds" = yes; then |
| # Even a millisecond often causes a bunch of false positives, |
| # so just try a hundredth of a second. The time saved between .001 and |
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| |
| # In order to catch current-generation FAT out, we must *modify* files |
| # that already exist; the *creation* timestamp is finer. Use names |
| # that make ls -t sort them differently when they have equal |
| # timestamps than when they have distinct timestamps, keeping |
| # in mind that ls -t prints the *newest* file first. |
| rm -f conftest.ts? |
| : > conftest.ts1 |
| : > conftest.ts2 |
| : > conftest.ts3 |
| |
| # Make sure ls -t actually works. Do 'set' in a subshell so we don't |
| # clobber the current shell's arguments. (Outer-level square brackets |
| # are removed by m4; they're present so that m4 does not expand |
| # <dollar><star>; be careful, easy to get confused.) |
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| set X `[ls -t conftest.ts[12]]` && |
| { |
| test "$[]*" != "X conftest.ts1 conftest.ts2" || |
| test "$[]*" != "X conftest.ts2 conftest.ts1"; |
| } |
| ); then :; else |
| # If neither matched, then we have a broken ls. This can happen |
| # if, for instance, CONFIG_SHELL is bash and it inherits a |
| # broken ls alias from the environment. This has actually |
| # happened. Such a system could not be considered "sane". |
| _AS_ECHO_UNQUOTED( |
| ["Bad output from ls -t: \"`[ls -t conftest.ts[12]]`\""], |
| [AS_MESSAGE_LOG_FD]) |
| AC_MSG_FAILURE([ls -t produces unexpected output. |
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| |
| for am_try_res in $am_try_resolutions; do |
| # Any one fine-grained sleep might happen to cross the boundary |
| # between two values of a coarser actual resolution, but if we do |
| # two fine-grained sleeps in a row, at least one of them will fall |
| # entirely within a coarse interval. |
| echo alpha > conftest.ts1 |
| sleep $am_try_res |
| echo beta > conftest.ts2 |
| sleep $am_try_res |
| echo gamma > conftest.ts3 |
| |
| # We assume that 'ls -t' will make use of high-resolution |
| # timestamps if the operating system supports them at all. |
| if (set X `ls -t conftest.ts?` && |
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| test "$[]3" = conftest.ts2 && |
| test "$[]4" = conftest.ts1); then |
| # |
| # Ok, ls -t worked. If we're at a resolution of 1 second, we're done, |
| # because we don't need to test make. |
| make_ok=true |
| if test $am_try_res != 1; then |
| # But if we've succeeded so far with a subsecond resolution, we |
| # have one more thing to check: make. It can happen that |
| # everything else supports the subsecond mtimes, but make doesn't; |
| # notably on macOS, which ships make 3.81 from 2006 (the last one |
| # released under GPLv2). https://bugs.gnu.org/68808 |
| # |
| # We test $MAKE if it is defined in the environment, else "make". |
| # It might get overridden later, but our hope is that in practice |
| # it does not matter: it is the system "make" which is (by far) |
| # the most likely to be broken, whereas if the user overrides it, |
| # probably they did so with a better, or at least not worse, make. |
| # https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html |
| # |
| # Create a Makefile (real tab character here): |
| rm -f conftest.mk |
| echo 'conftest.ts1: conftest.ts2' >conftest.mk |
| echo ' touch conftest.ts2' >>conftest.mk |
| # |
| # Now, running |
| # touch conftest.ts1; touch conftest.ts2; make |
| # should touch ts1 because ts2 is newer. This could happen by luck, |
| # but most often, it will fail if make's support is insufficient. So |
| # test for several consecutive successes. |
| # |
| # (We reuse conftest.ts[12] because we still want to modify existing |
| # files, not create new ones, per above.) |
| n=0 |
| make=${MAKE-make} |
| until test $n -eq 3; do |
| echo one > conftest.ts1 |
| sleep $am_try_res |
| echo two > conftest.ts2 # ts2 should now be newer than ts1 |
| if $make -f conftest.mk | grep 'up to date' >/dev/null; then |
| make_ok=false |
| break # out of $n loop |
| fi |
| n=`expr $n + 1` |
| done |
| fi |
| # |
| if $make_ok; then |
| # Everything we know to check worked out, so call this resolution good. |
| am_cv_filesystem_timestamp_resolution=$am_try_res |
| break # out of $am_try_res loop |
| fi |
| # Otherwise, we'll go on to check the next resolution. |
| fi |
| done |
| rm -f conftest.ts? |
| # (end _am_filesystem_timestamp_resolution) |
| ])]) |
| |
| # AM_SANITY_CHECK |
| # --------------- |
| AC_DEFUN([AM_SANITY_CHECK], |
| [AC_REQUIRE([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION]) |
| # This check should not be cached, as it may vary across builds of |
| # different projects. |
| AC_MSG_CHECKING([whether build environment is sane]) |
| # Reject unsafe characters in $srcdir or the absolute working directory |
| # name. Accept space and tab only in the latter. |
| am_lf=' |
| ' |
| case `pwd` in |
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| AC_MSG_ERROR([unsafe absolute working directory name]);; |
| esac |
| case $srcdir in |
| *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*) |
| AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);; |
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| |
| # Do 'set' in a subshell so we don't clobber the current shell's |
| # arguments. Must try -L first in case configure is actually a |
| # symlink; some systems play weird games with the mod time of symlinks |
| # (eg FreeBSD returns the mod time of the symlink's containing |
| # directory). |
| am_build_env_is_sane=no |
| am_has_slept=no |
| rm -f conftest.file |
| for am_try in 1 2; do |
| echo "timestamp, slept: $am_has_slept" > conftest.file |
| if ( |
| set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` |
| if test "$[]*" = "X"; then |
| # -L didn't work. |
| set X `ls -t "$srcdir/configure" conftest.file` |
| fi |
| test "$[]2" = conftest.file |
| ); then |
| am_build_env_is_sane=yes |
| break |
| fi |
| # Just in case. |
| sleep "$am_cv_filesystem_timestamp_resolution" |
| am_has_slept=yes |
| done |
| |
| AC_MSG_RESULT([$am_build_env_is_sane]) |
| if test "$am_build_env_is_sane" = no; then |
| AC_MSG_ERROR([newly created file is older than distributed files! |
| Check your system clock]) |
| fi |
| |
| # If we didn't sleep, we still need to ensure time stamps of config.status and |
| # generated files are strictly newer. |
| am_sleep_pid= |
| AS_IF([test -e conftest.file || grep 'slept: no' conftest.file >/dev/null 2>&1],, [dnl |
| ( sleep "$am_cv_filesystem_timestamp_resolution" ) & |
| am_sleep_pid=$! |
| ]) |
| AC_CONFIG_COMMANDS_PRE( |
| [AC_MSG_CHECKING([that generated files are newer than configure]) |
| if test -n "$am_sleep_pid"; then |
| # Hide warnings about reused PIDs. |
| wait $am_sleep_pid 2>/dev/null |
| fi |
| AC_MSG_RESULT([done])]) |
| rm -f conftest.file |
| ]) |
| |
| # Copyright (C) 2009-2024 Free Software Foundation, Inc. |
| # |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
| |
| # _AM_SILENT_RULES |
| # ---------------- |
| # Enable less verbose build rules support. |
| AC_DEFUN([_AM_SILENT_RULES], |
| [AM_DEFAULT_VERBOSITY=1 |
| AC_ARG_ENABLE([silent-rules], [dnl |
| AS_HELP_STRING( |
| [--enable-silent-rules], |
| [less verbose build output (undo: "make V=1")]) |
| AS_HELP_STRING( |
| [--disable-silent-rules], |
| [verbose build output (undo: "make V=0")])dnl |
| ]) |
| dnl |
| dnl A few 'make' implementations (e.g., NonStop OS and NextStep) |
| dnl do not support nested variable expansions. |
| dnl See automake bug#9928 and bug#10237. |
| am_make=${MAKE-make} |
| AC_CACHE_CHECK([whether $am_make supports nested variables], |
| [am_cv_make_support_nested_variables], |
| [if AS_ECHO([['TRUE=$(BAR$(V)) |
| BAR0=false |
| BAR1=true |
| V=1 |
| am__doit: |
| @$(TRUE) |
| .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then |
| am_cv_make_support_nested_variables=yes |
| else |
| am_cv_make_support_nested_variables=no |
| fi]) |
| AC_SUBST([AM_V])dnl |
| AM_SUBST_NOTMAKE([AM_V])dnl |
| AC_SUBST([AM_DEFAULT_V])dnl |
| AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl |
| AC_SUBST([AM_DEFAULT_VERBOSITY])dnl |
| AM_BACKSLASH='\' |
| AC_SUBST([AM_BACKSLASH])dnl |
| _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl |
| dnl Delay evaluation of AM_DEFAULT_VERBOSITY to the end to allow multiple calls |
| dnl to AM_SILENT_RULES to change the default value. |
| AC_CONFIG_COMMANDS_PRE([dnl |
| case $enable_silent_rules in @%:@ ((( |
| yes) AM_DEFAULT_VERBOSITY=0;; |
| no) AM_DEFAULT_VERBOSITY=1;; |
| esac |
| if test $am_cv_make_support_nested_variables = yes; then |
| dnl Using '$V' instead of '$(V)' breaks IRIX make. |
| AM_V='$(V)' |
| AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' |
| else |
| AM_V=$AM_DEFAULT_VERBOSITY |
| AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY |
| fi |
| ])dnl |
| ]) |
| |
| # AM_SILENT_RULES([DEFAULT]) |
| # -------------------------- |
| # Set the default verbosity level to DEFAULT ("yes" being less verbose, "no" or |
| # empty being verbose). |
| AC_DEFUN([AM_SILENT_RULES], |
| [AC_REQUIRE([_AM_SILENT_RULES]) |
| AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1])]) |
| |
| # Copyright (C) 2001-2024 Free Software Foundation, Inc. |
| # |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
| |
| # AM_PROG_INSTALL_STRIP |
| # --------------------- |
| # One issue with vendor 'install' (even GNU) is that you can't |
| # specify the program used to strip binaries. This is especially |
| # annoying in cross-compiling environments, where the build's strip |
| # is unlikely to handle the host's binaries. |
| # Fortunately install-sh will honor a STRIPPROG variable, so we |
| # always use install-sh in "make install-strip", and initialize |
| # STRIPPROG with the value of the STRIP variable (set by the user). |
| AC_DEFUN([AM_PROG_INSTALL_STRIP], |
| [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl |
| # Installed binaries are usually stripped using 'strip' when the user |
| # run "make install-strip". However 'strip' might not be the right |
| # tool to use in cross-compilation environments, therefore Automake |
| # will honor the 'STRIP' environment variable to overrule this program. |
| dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. |
| if test "$cross_compiling" != no; then |
| AC_CHECK_TOOL([STRIP], [strip], :) |
| fi |
| INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" |
| AC_SUBST([INSTALL_STRIP_PROGRAM])]) |
| |
| # Copyright (C) 2006-2024 Free Software Foundation, Inc. |
| # |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
| |
| # _AM_SUBST_NOTMAKE(VARIABLE) |
| # --------------------------- |
| # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. |
| # This macro is traced by Automake. |
| AC_DEFUN([_AM_SUBST_NOTMAKE]) |
| |
| # AM_SUBST_NOTMAKE(VARIABLE) |
| # -------------------------- |
| # Public sister of _AM_SUBST_NOTMAKE. |
| AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) |
| |
| # Check how to create a tarball. -*- Autoconf -*- |
| |
| # Copyright (C) 2004-2024 Free Software Foundation, Inc. |
| # |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
| |
| # _AM_PROG_TAR(FORMAT) |
| # -------------------- |
| # Check how to create a tarball in format FORMAT. |
| # FORMAT should be one of 'v7', 'ustar', or 'pax'. |
| # |
| # Substitute a variable $(am__tar) that is a command |
| # writing to stdout a FORMAT-tarball containing the directory |
| # $tardir. |
| # tardir=directory && $(am__tar) > result.tar |
| # |
| # Substitute a variable $(am__untar) that extract such |
| # a tarball read from stdin. |
| # $(am__untar) < result.tar |
| # |
| AC_DEFUN([_AM_PROG_TAR], |
| [# Always define AMTAR for backward compatibility. Yes, it's still used |
| # in the wild :-( We should find a proper way to deprecate it ... |
| AC_SUBST([AMTAR], ['$${TAR-tar}']) |
| |
| # We'll loop over all known methods to create a tar archive until one works. |
| _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' |
| |
| m4_if([$1], [v7], |
| [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], |
| |
| [m4_case([$1], |
| [ustar], |
| [# The POSIX 1988 'ustar' format is defined with fixed-size fields. |
| # There is notably a 21 bits limit for the UID and the GID. In fact, |
| # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 |
| # and bug#13588). |
| am_max_uid=2097151 # 2^21 - 1 |
| am_max_gid=$am_max_uid |
| # The $UID and $GID variables are not portable, so we need to resort |
| # to the POSIX-mandated id(1) utility. Errors in the 'id' calls |
| # below are definitely unexpected, so allow the users to see them |
| # (that is, avoid stderr redirection). |
| am_uid=`id -u || echo unknown` |
| am_gid=`id -g || echo unknown` |
| AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) |
| if test x$am_uid = xunknown; then |
| AC_MSG_WARN([ancient id detected; assuming current UID is ok, but dist-ustar might not work]) |
| elif test $am_uid -le $am_max_uid; then |
| AC_MSG_RESULT([yes]) |
| else |
| AC_MSG_RESULT([no]) |
| _am_tools=none |
| fi |
| AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) |
| if test x$gm_gid = xunknown; then |
| AC_MSG_WARN([ancient id detected; assuming current GID is ok, but dist-ustar might not work]) |
| elif test $am_gid -le $am_max_gid; then |
| AC_MSG_RESULT([yes]) |
| else |
| AC_MSG_RESULT([no]) |
| _am_tools=none |
| fi], |
| |
| [pax], |
| [], |
| |
| [m4_fatal([Unknown tar format])]) |
| |
| AC_MSG_CHECKING([how to create a $1 tar archive]) |
| |
| # Go ahead even if we have the value already cached. We do so because we |
| # need to set the values for the 'am__tar' and 'am__untar' variables. |
| _am_tools=${am_cv_prog_tar_$1-$_am_tools} |
| |
| for _am_tool in $_am_tools; do |
| case $_am_tool in |
| gnutar) |
| for _am_tar in tar gnutar gtar; do |
| AM_RUN_LOG([$_am_tar --version]) && break |
| done |
| am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' |
| am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' |
| am__untar="$_am_tar -xf -" |
| ;; |
| plaintar) |
| # Must skip GNU tar: if it does not support --format= it doesn't create |
| # ustar tarball either. |
| (tar --version) >/dev/null 2>&1 && continue |
| am__tar='tar chf - "$$tardir"' |
| am__tar_='tar chf - "$tardir"' |
| am__untar='tar xf -' |
| ;; |
| pax) |
| am__tar='pax -L -x $1 -w "$$tardir"' |
| am__tar_='pax -L -x $1 -w "$tardir"' |
| am__untar='pax -r' |
| ;; |
| cpio) |
| am__tar='find "$$tardir" -print | cpio -o -H $1 -L' |
| am__tar_='find "$tardir" -print | cpio -o -H $1 -L' |
| am__untar='cpio -i -H $1 -d' |
| ;; |
| none) |
| am__tar=false |
| am__tar_=false |
| am__untar=false |
| ;; |
| esac |
| |
| # If the value was cached, stop now. We just wanted to have am__tar |
| # and am__untar set. |
| test -n "${am_cv_prog_tar_$1}" && break |
| |
| # tar/untar a dummy directory, and stop if the command works. |
| rm -rf conftest.dir |
| mkdir conftest.dir |
| echo GrepMe > conftest.dir/file |
| AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) |
| rm -rf conftest.dir |
| if test -s conftest.tar; then |
| AM_RUN_LOG([$am__untar <conftest.tar]) |
| AM_RUN_LOG([cat conftest.dir/file]) |
| grep GrepMe conftest.dir/file >/dev/null 2>&1 && break |
| fi |
| done |
| rm -rf conftest.dir |
| |
| AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) |
| AC_MSG_RESULT([$am_cv_prog_tar_$1])]) |
| |
| AC_SUBST([am__tar]) |
| AC_SUBST([am__untar]) |
| ]) # _AM_PROG_TAR |
| |
| # Copyright (C) 2022-2024 Free Software Foundation, Inc. |
| # |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
| |
| # _AM_PROG_XARGS_N |
| # ---------------- |
| # Check whether 'xargs -n' works. It should work everywhere, so the fallback |
| # is not optimized at all as we never expect to use it. |
| AC_DEFUN([_AM_PROG_XARGS_N], |
| [AC_CACHE_CHECK([xargs -n works], am_cv_xargs_n_works, [dnl |
| AS_IF([test "`echo 1 2 3 | xargs -n2 echo`" = "1 2 |
| 3"], [am_cv_xargs_n_works=yes], [am_cv_xargs_n_works=no])]) |
| AS_IF([test "$am_cv_xargs_n_works" = yes], [am__xargs_n='xargs -n'], [dnl |
| am__xargs_n='am__xargs_n () { shift; sed "s/ /\\n/g" | while read am__xargs_n_arg; do "$@" "$am__xargs_n_arg"; done; }' |
| ])dnl |
| AC_SUBST(am__xargs_n) |
| ]) |
| |
| m4_include([scripts/autoconf/libtool.m4]) |
| m4_include([scripts/autoconf/ltoptions.m4]) |
| m4_include([scripts/autoconf/ltsugar.m4]) |
| m4_include([scripts/autoconf/ltversion.m4]) |
| m4_include([scripts/autoconf/lt~obsolete.m4]) |