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dnl FZ_PATH_PROG_VER does basically the same as AC_PATH_PROG, but
dnl wants the minimum acceptable version of the program as 3rd parameter.
AC_DEFUN([FZ_PATH_PROG_VER],
[
AC_PATH_PROG([$1], [$2], [$4], [$5])
if ! test -z "@S|@$1" && ! test -z "$3"; then
fz_req_version=$3
fz_req_major=`echo $fz_req_version | cut -d. -f1`
fz_req_minor=`echo $fz_req_version | sed s/@<:@-,a-z,A-Z@:>@.*// | cut -d. -f2`
fz_req_micro=`echo $fz_req_version | sed s/@<:@-,a-z,A-Z@:>@.*// | cut -d. -f3`
if test -z "$fz_req_minor"; then fz_req_minor=0; fi
if test -z "$fz_req_micro"; then fz_req_micro=0; fi
AC_MSG_CHECKING([whether $2 version >= $fz_req_major.$fz_req_minor.$fz_req_micro])
fz_pkg_version=`@S|@$1 --version|head -n 1|sed 's/(@<:@^)@:>@*)//g;s/^@<:@a-zA-Z\.\ \-@:>@*//;s/ .*$//'`
fz_pkg_major=`echo $fz_pkg_version | cut -d. -f1`
fz_pkg_minor=`echo $fz_pkg_version | sed s/@<:@-,a-z,A-Z@:>@.*// | cut -d. -f2`
fz_pkg_micro=`echo $fz_pkg_version | sed s/@<:@-,a-z,A-Z@:>@.*// | cut -d. -f3`
if test -z "$fz_pkg_minor"; then fz_pkg_minor=0; fi
if test -z "$fz_pkg_micro"; then fz_pkg_micro=0; fi
if test "$fz_pkg_major" -lt "$fz_req_major"; then
$1=
elif test "$fz_pkg_major" -eq "$fz_req_major"; then
if test "$fz_pkg_minor" -lt "$fz_req_minor"; then
$1=
elif test "$fz_pkg_minor" -eq "$fz_req_minor"; then
if test "$fz_pkg_micro" -lt "$fz_req_micro"; then
$1=
fi
fi
fi
if test -z "@S|@$1"; then
AC_MSG_RESULT([no, $fz_pkg_version])
else
AC_MSG_RESULT([yes, $fz_pkg_version])
fi
fi
])
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