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Annotation of ircnowd/autogen.sh, Revision 1.1.1.1

1.1       tomglok     1: #!/bin/sh
                      2: #
                      3: # ngIRCd -- The Next Generation IRC Daemon
                      4: # Copyright (c)2001-2015 Alexander Barton (alex@barton.de) and Contributors
                      5: #
                      6: # This program is free software; you can redistribute it and/or modify
                      7: # it under the terms of the GNU General Public License as published by
                      8: # the Free Software Foundation; either version 2 of the License, or
                      9: # (at your option) any later version.
                     10: # Please read the file COPYING, README and AUTHORS for more information.
                     11: #
                     12: # Usage:
                     13: #   [VAR=<value>] ./autogen.sh [<configure-args>]
                     14: #
                     15: # This script generates the ./configure script using GNU automake and
                     16: # GNU autoconf. It tries to be smart in finding the correct/usable/available
                     17: # installed versions of these tools on your system.
                     18: #
                     19: # In addition, it enables or disables the "de-ANSI-fication" support of GNU
                     20: # automake, which is supported up to autoconf 1.11.x an has been removed
                     21: # in automake 1.12 -- make sure to use a version of automake supporting it
                     22: # when generating distribution archives!
                     23: #
                     24: # The following strategy is used for each of aclocal, autoheader, automake,
                     25: # and autoconf: first, "tool" (the regular name of the tool, e. g. "autoconf"
                     26: # or "automake") is checked. If this fails, "tool<major><minor>" (for example
                     27: # "automake16") and "tool-<major>.<minor>" (e. g. "autoconf-2.54") are tried
                     28: # with <major> being 2 for tool of GNU autoconf and 1 for tools of automake;
                     29: # <minor> is tried from 99 to 0. The first occurrence will be used.
                     30: #
                     31: # When you pass <configure-args> to autogen.sh it will call the generated
                     32: # ./configure script on success and pass these parameters to it.
                     33: #
                     34: # You can tweak the behaviour using these environment variables:
                     35: #
                     36: # - ACLOCAL=<cmd>, AUTOHEADER=<cmd>, AUTOMAKE=<cmd>, AUTOCONF=<cmd>
                     37: #   Name and optionally path to the particular tool.
                     38: # - PREFIX=<path>
                     39: #   Search the GNU autoconf and GNU automake tools in <path> first. If the
                     40: #   generated ./configure script will be called, pass "--prefix=<path>" to it.
                     41: # - EXIST=<tool>
                     42: #   Use <tool> to test for aclocal, autoheader etc. pp. ...
                     43: #   When not specified, either "type" or "which" is used.
                     44: # - VERBOSE=1
                     45: #   Output the detected names of the GNU automake and GNU autoconf tools.
                     46: # - GO=1
                     47: #   Call ./configure even if no arguments have been passed to autogen.sh.
                     48: #
                     49: # Examples:
                     50: #
                     51: # - ./autogen.sh
                     52: #   Generates the ./configure script.
                     53: # - GO=1 ./autogen.sh
                     54: #   Generates the ./configure script and runs it as "./configure".
                     55: # - VERBOSE=1 ./autogen.sh --with-ident
                     56: #   Show tool names, generates the ./configure script, and runs it with
                     57: #   these arguments: "./configure --with-ident".
                     58: # - ACLOCAL=aclocal-1.6 GO=1 PREFIX=$HOME ./autogen.sh
                     59: #   Uses "aclocal-1.6" as aclocal tool, generates the ./configure script,
                     60: #   and runs it with these arguments: "./configure --prefix=$HOME".
                     61: #
                     62:
                     63: Search()
                     64: {
                     65:        [ $# -eq 2 ] || exit 1
                     66:
                     67:        searchlist="$1"
                     68:        major="$2"
                     69:        minor=99
                     70:
                     71:        [ -n "$PREFIX" ] && searchlist="${PREFIX}/$1 ${PREFIX}/bin/$1 $searchlist"
                     72:
                     73:        for name in $searchlist; do
                     74:                $EXIST "${name}" >/dev/null 2>&1
                     75:                if [ $? -eq 0 ]; then
                     76:                        "${name}" --version 2>&1 \
                     77:                         | grep -v "environment variable" >/dev/null 2>&1
                     78:                        if [ $? -eq 0 ]; then
                     79:                                echo "${name}"
                     80:                                return 0
                     81:                        fi
                     82:                fi
                     83:        done
                     84:
                     85:        while [ $minor -ge 0 ]; do
                     86:                for name in $searchlist; do
                     87:                        $EXIST "${name}${major}${minor}" >/dev/null 2>&1
                     88:                        if [ $? -eq 0 ]; then
                     89:                                echo "${name}${major}${minor}"
                     90:                                return 0
                     91:                        fi
                     92:                        $EXIST "${name}-${major}.${minor}" >/dev/null 2>&1
                     93:                        if [ $? -eq 0 ]; then
                     94:                                echo "${name}-${major}.${minor}"
                     95:                                return 0
                     96:                        fi
                     97:                done
                     98:                minor=$(expr $minor - 1)
                     99:        done
                    100:        return 1
                    101: }
                    102:
                    103: Notfound()
                    104: {
                    105:        echo "Error: $* not found!"
                    106:        echo 'Please install supported versions of GNU autoconf, GNU automake'
                    107:        echo 'and pkg-config: see the INSTALL file for details.'
                    108:        exit 1
                    109: }
                    110:
                    111: Run()
                    112: {
                    113:        [ "$VERBOSE" = "1" ] && echo " - running \"$*\" ..."
                    114:        "$@"
                    115: }
                    116:
                    117: # Reset locale settings to suppress warning messages of Perl
                    118: unset LC_ALL
                    119: unset LANG
                    120:
                    121: # Which command should be used to detect the automake/autoconf tools?
                    122: [ -z "$EXIST" ] && existlist="type which" || existlist="$EXIST"
                    123: EXIST=""
                    124: for t in $existlist; do
                    125:        $t /bin/ls >/dev/null 2>&1
                    126:        if [ $? -eq 0 ]; then
                    127:                rm -f /tmp/test.$$
                    128:                $t /tmp/test.$$ >/dev/null 2>&1
                    129:                [ $? -ne 0 ] && EXIST="$t"
                    130:        fi
                    131:        [ -n "$EXIST" ] && break
                    132: done
                    133: if [ -z "$EXIST" ]; then
                    134:        echo "Didn't detect a working command to test for the autoconf/automake tools!"
                    135:        echo "Searchlist: $existlist"
                    136:        exit 1
                    137: fi
                    138: [ "$VERBOSE" = "1" ] && echo "Using \"$EXIST\" to test for tools."
                    139:
                    140: # Try to detect the needed tools when no environment variable already
                    141: # specifies one:
                    142: echo "Searching for required tools ..."
                    143: [ -z "$ACLOCAL" ] && ACLOCAL=$(Search aclocal 1)
                    144: [ "$VERBOSE" = "1" ] && echo " - ACLOCAL=$ACLOCAL"
                    145: [ -z "$AUTOHEADER" ] && AUTOHEADER=$(Search autoheader 2)
                    146: [ "$VERBOSE" = "1" ] && echo " - AUTOHEADER=$AUTOHEADER"
                    147: [ -z "$AUTOMAKE" ] && AUTOMAKE=$(Search automake 1)
                    148: [ "$VERBOSE" = "1" ] && echo " - AUTOMAKE=$AUTOMAKE"
                    149: [ -z "$AUTOCONF" ] && AUTOCONF=$(Search autoconf 2)
                    150: [ "$VERBOSE" = "1" ] && echo " - AUTOCONF=$AUTOCONF"
                    151:
                    152: AUTOCONF_VERSION=$(echo "$AUTOCONF" | cut -d'-' -f2-)
                    153: [ -n "$AUTOCONF_VERSION" ] && [ "$AUTOCONF_VERSION" != "autoconf" ] \
                    154:        && export AUTOCONF_VERSION || unset AUTOCONF_VERSION
                    155: [ "$VERBOSE" = "1" ] && echo " - AUTOCONF_VERSION=$AUTOCONF_VERSION"
                    156: AUTOMAKE_VERSION=$(echo $AUTOMAKE | cut -d'-' -f2-)
                    157: [ -n "$AUTOMAKE_VERSION" ] && [ "$AUTOMAKE_VERSION" != "automake" ] \
                    158:        && export AUTOMAKE_VERSION || unset AUTOMAKE_VERSION
                    159: [ "$VERBOSE" = "1" ] && echo " - AUTOMAKE_VERSION=$AUTOMAKE_VERSION"
                    160:
                    161: [ $# -gt 0 ] && CONFIGURE_ARGS=" $*" || CONFIGURE_ARGS=""
                    162: [ -z "$GO" ] && [ -n "$CONFIGURE_ARGS" ] && GO=1
                    163:
                    164: # Verify that all tools have been found
                    165: command -v pkg-config >/dev/null || Notfound pkg-config
                    166: [ -z "$ACLOCAL" ] && Notfound aclocal
                    167: [ -z "$AUTOHEADER" ] && Notfound autoheader
                    168: [ -z "$AUTOMAKE" ] && Notfound automake
                    169: [ -z "$AUTOCONF" ] && Notfound autoconf
                    170:
                    171: AM_VERSION=$($AUTOMAKE --version | head -n 1 | sed -e 's/.* //g')
                    172: ifs=$IFS; IFS="."; set $AM_VERSION; IFS=$ifs
                    173: AM_MAJOR="$1"; AM_MINOR="$2"
                    174: echo "Detected automake $AM_VERSION ..."
                    175:
                    176: AM_MAKEFILES="src/ipaddr/Makefile.ng src/ngircd/Makefile.ng src/testsuite/Makefile.ng src/tool/Makefile.ng"
                    177:
                    178: # De-ANSI-fication?
                    179: if [ "$AM_MAJOR" -eq "1" ] && [ "$AM_MINOR" -lt "12" ]; then
                    180:        # automake < 1.12 => automatic de-ANSI-fication support available
                    181:        echo " - Enabling de-ANSI-fication support."
                    182:        sed -e "s|^__ng_PROTOTYPES__|AM_C_PROTOTYPES|g" configure.ng >configure.ac
                    183:        DEANSI_START=""
                    184:        DEANSI_END=""
                    185: else
                    186:        # automake >= 1.12 => no de-ANSI-fication support available
                    187:        echo " - Disabling de-ANSI-fication support."
                    188:        sed -e "s|^__ng_PROTOTYPES__|AC_C_PROTOTYPES|g" configure.ng >configure.ac
                    189:        DEANSI_START="#"
                    190:        DEANSI_END=" (disabled by ./autogen.sh script)"
                    191: fi
                    192: # Serial test harness?
                    193: if [ "$AM_MAJOR" -eq "1" ] && [ "$AM_MINOR" -ge "13" ]; then
                    194:        # automake >= 1.13 => enforce "serial test harness"
                    195:        echo " - Enforcing serial test harness."
                    196:        SERIAL_TESTS="serial-tests"
                    197: else
                    198:        # automake < 1.13 => no new test harness, nothing to do
                    199:        # shellcheck disable=SC2034
                    200:        SERIAL_TEST=""
                    201: fi
                    202:
                    203: sed -e "s|^__ng_Makefile_am_template__|AUTOMAKE_OPTIONS = ${SERIAL_TESTS} ${DEANSI_START}ansi2knr${DEANSI_END}|g" \
                    204:        src/portab/Makefile.ng >src/portab/Makefile.am
                    205: for makefile_ng in $AM_MAKEFILES; do
                    206:        makefile_am=$(echo "$makefile_ng" | sed -e "s|\.ng\$|\.am|g")
                    207:        sed -e "s|^__ng_Makefile_am_template__|AUTOMAKE_OPTIONS = ${SERIAL_TESTS} ${DEANSI_START}../portab/ansi2knr${DEANSI_END}|g" \
                    208:                $makefile_ng >$makefile_am
                    209: done
                    210:
                    211: export ACLOCAL AUTOHEADER AUTOMAKE AUTOCONF
                    212:
                    213: # Generate files
                    214: echo "Generating files using \"$AUTOCONF\" and \"$AUTOMAKE\" ..."
                    215: Run $ACLOCAL && \
                    216:        Run $AUTOCONF && \
                    217:        Run $AUTOHEADER && \
                    218:        Run $AUTOMAKE --add-missing --no-force
                    219:
                    220: if [ $? -eq 0 ] && [ -x ./configure ]; then
                    221:        # Success: if we got some parameters we call ./configure and pass
                    222:        # all of them to it.
                    223:        NAME=$(grep PACKAGE_STRING= configure | cut -d"'" -f2)
                    224:        if [ "$GO" = "1" ]; then
                    225:                [ -n "$PREFIX" ] && p=" --prefix=$PREFIX" || p=""
                    226:                c="./configure${p}${CONFIGURE_ARGS}"
                    227:                echo "Okay, autogen.sh for $NAME done."
                    228:                echo "Calling \"$c\" ..."
                    229:                $c
                    230:                exit $?
                    231:        else
                    232:                echo "Okay, autogen.sh for $NAME done."
                    233:                echo "Now run the \"./configure\" script."
                    234:                exit 0
                    235:        fi
                    236: else
                    237:        # Failure!?
                    238:        echo "Error! Check your installation of GNU automake and autoconf!"
                    239:        exit 1
                    240: fi
                    241:
                    242: # -eof-

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