+#!·/bin/sh
+#·Common·wrapper·for·a·few·potentially·missing·GNU·programs.
+scriptversion=2018-03-07.03;·#·UTC
+#·Copyright·(C)·1996-2021·Free·Software·Foundation,·Inc.
+#·Originally·written·by·Fran,cois·Pinard·<pinard@iro.umontreal.ca>,·1996.
+#·This·program·is·free·software;·you·can·redistribute·it·and/or·modify
+#·it·under·the·terms·of·the·GNU·General·Public·License·as·published·by
+#·the·Free·Software·Foundation;·either·version·2,·or·(at·your·option)
+#·any·later·version.
+#·This·program·is·distributed·in·the·hope·that·it·will·be·useful,
+#·but·WITHOUT·ANY·WARRANTY;·without·even·the·implied·warranty·of
+#·MERCHANTABILITY·or·FITNESS·FOR·A·PARTICULAR·PURPOSE.··See·the
+#·GNU·General·Public·License·for·more·details.
+#·You·should·have·received·a·copy·of·the·GNU·General·Public·License
+#·along·with·this·program.··If·not,·see·<https://www.gnu.org/licenses/>.
+#·As·a·special·exception·to·the·GNU·General·Public·License,·if·you
+#·distribute·this·file·as·part·of·a·program·that·contains·a
+#·configuration·script·generated·by·Autoconf,·you·may·include·it·under
+#·the·same·distribution·terms·that·you·use·for·the·rest·of·that·program.
+if·test·$#·-eq·0;·then
+··echo·1>&2·"Try·'$0·--help'·for·more·information"
+··exit·1
+fi
+case·$1·in
+··--is-lightweight)
+····#·Used·by·our·autoconf·macros·to·check·whether·the·available·missing
+····#·script·is·modern·enough.
+····exit·0
+····;;
+··--run)
+····#·Back-compat·with·the·calling·convention·used·by·older·automake.
+····shift
+····;;
+··-h|--h|--he|--hel|--help)
+····echo·"\
+$0·[OPTION]...·PROGRAM·[ARGUMENT]...
+Run·'PROGRAM·[ARGUMENT]...',·returning·a·proper·advice·when·this·fails·due
+to·PROGRAM·being·missing·or·too·old.
+Options:
+··-h,·--help······display·this·help·and·exit
+··-v,·--version···output·version·information·and·exit
+Supported·PROGRAM·values:
+··aclocal···autoconf··autoheader···autom4te··automake··makeinfo
+··bison·····yacc······flex·········lex·······help2man
+Version·suffixes·to·PROGRAM·as·well·as·the·prefixes·'gnu-',·'gnu',·and
+'g'·are·ignored·when·checking·the·name.
+Send·bug·reports·to·<bug-automake@gnu.org>."
+····exit·$?
+····;;
+··-v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+····echo·"missing·$scriptversion·(GNU·Automake)"
+····exit·$?
+····;;
+··-*)
+····echo·1>&2·"$0:·unknown·'$1'·option"
+····echo·1>&2·"Try·'$0·--help'·for·more·information"
+····exit·1
+····;;
+esac
+#·Run·the·given·program,·remember·its·exit·status.
+"$@";·st=$?
+#·If·it·succeeded,·we·are·done.
+test·$st·-eq·0·&&·exit·0
+#·Also·exit·now·if·we·it·failed·(or·wasn't·found),·and·'--version'·was
+#·passed;·such·an·option·is·passed·most·likely·to·detect·whether·the
+#·program·is·present·and·works.
+case·$2·in·--version|--help)·exit·$st;;·esac
+#·Exit·code·63·means·version·mismatch.··This·often·happens·when·the·user
+#·tries·to·use·an·ancient·version·of·a·tool·on·a·file·that·requires·a
+#·minimum·version.
+if·test·$st·-eq·63;·then
+··msg="probably·too·old"
+elif·test·$st·-eq·127;·then
+··#·Program·was·missing.
+··msg="missing·on·your·system"
+else
+··#·Program·was·found·and·executed,·but·failed.··Give·up.
+··exit·$st
+fi
+perl_URL=https://www.perl.org/
+flex_URL=https://github.com/westes/flex
+gnu_software_URL=https://www.gnu.org/software
+program_details·()
+··case·$1·in
+····aclocal|automake)
+······echo·"The·'$1'·program·is·part·of·the·GNU·Automake·package:"
+······echo·"<$gnu_software_URL/automake>"
+······echo·"It·also·requires·GNU·Autoconf,·GNU·m4·and·Perl·in·order·to·run:"
+······echo·"<$gnu_software_URL/autoconf>"
+······echo·"<$gnu_software_URL/m4/>"
+······echo·"<$perl_URL>"
+······;;
+····autoconf|autom4te|autoheader)
+······echo·"The·'$1'·program·is·part·of·the·GNU·Autoconf·package:"
+······echo·"<$gnu_software_URL/autoconf/>"
+······echo·"It·also·requires·GNU·m4·and·Perl·in·order·to·run:"
+······echo·"<$gnu_software_URL/m4/>"
+······echo·"<$perl_URL>"
+······;;
+··esac
+give_advice·()
+··#·Normalize·program·name·to·check·for.
+··normalized_program=`echo·"$1"·|·sed·'
+····s/^gnu-//;·t
+····s/^gnu//;·t
+····s/^g//;·t'`
+··printf·'%s\n'·"'$1'·is·$msg."
+··configure_deps="'configure.ac'·or·m4·files·included·by·'configure.ac'"
+··case·$normalized_program·in
+····autoconf*)
+······echo·"You·should·only·need·it·if·you·modified·'configure.ac',"
+······echo·"or·m4·files·included·by·it."
+······program_details·'autoconf'
+······;;
+····autoheader*)
+······echo·"You·should·only·need·it·if·you·modified·'acconfig.h'·or"
+······echo·"$configure_deps."
+······program_details·'autoheader'
+······;;
+····automake*)
+······echo·"You·should·only·need·it·if·you·modified·'Makefile.am'·or"
+······echo·"$configure_deps."
+······program_details·'automake'
+······;;
+····aclocal*)
+······echo·"You·should·only·need·it·if·you·modified·'acinclude.m4'·or"
+······echo·"$configure_deps."
+······program_details·'aclocal'
+······;;
+···autom4te*)
+······echo·"You·might·have·modified·some·maintainer·files·that·require"
+······echo·"the·'autom4te'·program·to·be·rebuilt."
+······program_details·'autom4te'
+······;;
+····bison*|yacc*)
+······echo·"You·should·only·need·it·if·you·modified·a·'.y'·file."
+······echo·"You·may·want·to·install·the·GNU·Bison·package:"
+······echo·"<$gnu_software_URL/bison/>"
+······;;
+····lex*|flex*)
+······echo·"You·should·only·need·it·if·you·modified·a·'.l'·file."
+······echo·"You·may·want·to·install·the·Fast·Lexical·Analyzer·package:"
+······echo·"<$flex_URL>"
+······;;
+····help2man*)
+······echo·"You·should·only·need·it·if·you·modified·a·dependency"·\
+···········"of·a·man·page."
+······echo·"You·may·want·to·install·the·GNU·Help2man·package:"
+······echo·"<$gnu_software_URL/help2man/>"
+····;;
+····makeinfo*)
+······echo·"You·should·only·need·it·if·you·modified·a·'.texi'·file,·or"
+······echo·"any·other·file·indirectly·affecting·the·aspect·of·the·manual."
+······echo·"You·might·want·to·install·the·Texinfo·package:"
+······echo·"<$gnu_software_URL/texinfo/>"
+······echo·"The·spurious·makeinfo·call·might·also·be·the·consequence·of"
+······echo·"using·a·buggy·'make'·(AIX,·DU,·IRIX),·in·which·case·you·might"
+······echo·"want·to·install·GNU·make:"
+······echo·"<$gnu_software_URL/make/>"
+······;;
+····*)
+······echo·"You·might·have·modified·some·files·without·having·the·proper"
+······echo·"tools·for·further·handling·them.··Check·the·'README'·file,·it"
+······echo·"often·tells·you·about·the·needed·prerequisites·for·installing"
+······echo·"this·package.··You·may·also·peek·at·any·GNU·archive·site,·in"
+······echo·"case·some·other·package·contains·this·missing·'$1'·program."
+······;;
+··esac
+give_advice·"$1"·|·sed·-e·'1s/^/WARNING:·/'·\
+·······················-e·'2,$s/^/·········/'·>&2
+#·Propagate·the·correct·exit·status·(expected·to·be·127·for·a·program
+#·not·found,·63·for·a·program·that·failed·due·to·version·mismatch).
+exit·$st
+#·Local·variables:
+#·eval:·(add-hook·'before-save-hook·'time-stamp)
+#·time-stamp-start:·"scriptversion="
+#·time-stamp-format:·"%:y-%02m-%02d.%02H"
+#·time-stamp-time-zone:·"UTC0"
+#·time-stamp-end:·";·#·UTC"
+#·End: