source: vendor/3.5.6/source4/autogen.sh

#!/bin/sh

# Run this script to build samba from git.

while true; do
    case $1 in
        --version-file)
            VERSION_FILE=$2
            shift 2
            ;;
        *)
            break
            ;;
    esac
done

## insert all possible names (only works with
## autoconf 2.x)
TESTAUTOHEADER="autoheader autoheader-2.53 autoheader2.50 autoheader259 autoheader253"
TESTAUTOCONF="autoconf autoconf-2.53 autoconf2.50 autoconf259 autoconf253"

AUTOHEADERFOUND="0"
AUTOCONFFOUND="0"

if which which > /dev/null 2>&1; then
        echo -n
else
        echo "$0: need 'which' to figure out if we have the right autoconf to build samba from git" >&2
        exit 1
fi
##
## Look for autoheader
##
for i in $TESTAUTOHEADER; do
        if which $i > /dev/null 2>&1; then
                if test `$i --version | head -n 1 | cut -d.  -f 2 | sed "s/[^0-9]//g"` -ge 53; then
                        AUTOHEADER=$i
                        AUTOHEADERFOUND="1"
                        break
                fi
        fi
done

##
## Look for autoconf
##

for i in $TESTAUTOCONF; do
        if which $i > /dev/null 2>&1; then
                if test `$i --version | head -n 1 | cut -d.  -f 2 | sed "s/[^0-9]//g"` -ge 53; then
                        AUTOCONF=$i
                        AUTOCONFFOUND="1"
                        break
                fi
        fi
done


##
## do we have it?
##
if test "$AUTOCONFFOUND" = "0" -o "$AUTOHEADERFOUND" = "0"; then
        echo "$0: need autoconf 2.53 or later to build samba from git" >&2
        exit 1
fi

echo "$0: running script/mkversion.sh"
./script/mkversion.sh $VERSION_FILE || exit 1

rm -rf autom4te*.cache
rm -f configure include/config_tmp.h*

IPATHS="-I. -I../lib/replace"

echo "$0: running $AUTOHEADER $IPATHS"
$AUTOHEADER $IPATHS || exit 1

echo "$0: running $AUTOCONF $IPATHS"
$AUTOCONF $IPATHS || exit 1

rm -rf autom4te*.cache

echo "Now run ./configure (or ./configure.developer) and then make."
exit 0