dnl
dnl Fix basic directories (Taken from CUPS)
dnl
dnl Copyright 2007-2014 by Apple Inc.
dnl Copyright 1997-2007 by Easy Software Products, all rights reserved.
dnl
dnl Licensed under Apache License v2.0.  See the file "LICENSE" for more
dnl information.
dnl

AC_PREFIX_DEFAULT(/)

dnl Fix "prefix" variable if it hasn't been specified...
if test "$prefix" = "NONE"; then
	prefix="/"
fi

dnl Fix "exec_prefix" variable if it hasn't been specified...
if test "$exec_prefix" = "NONE"; then
	if test "$prefix" = "/"; then
		exec_prefix="/usr"
	else
		exec_prefix="$prefix"
	fi
fi

dnl Fix "bindir" variable...
if test "$bindir" = "\${exec_prefix}/bin"; then
	bindir="$exec_prefix/bin"
fi

dnl Fix "sbindir" variable...
if test "$sbindir" = "\${exec_prefix}/sbin"; then
	sbindir="$exec_prefix/sbin"
fi

dnl Fix "sharedstatedir" variable if it hasn't been specified...
if test "$sharedstatedir" = "\${prefix}/com" -a "$prefix" = "/"; then
	sharedstatedir="/usr/com"
fi

dnl Fix "datarootdir" variable if it hasn't been specified...
if test "$datarootdir" = "\${prefix}/share"; then
	if test "$prefix" = "/"; then
		datarootdir="/usr/share"
	else
		datarootdir="$prefix/share"
	fi
fi

dnl Fix "datadir" variable if it hasn't been specified...
if test "$datadir" = "\${prefix}/share"; then
	if test "$prefix" = "/"; then
		datadir="/usr/share"
	else
		datadir="$prefix/share"
	fi
elif test "$datadir" = "\${datarootdir}"; then
	datadir="$datarootdir"
fi

dnl Fix "includedir" variable if it hasn't been specified...
if test "$includedir" = "\${prefix}/include" -a "$prefix" = "/"; then
	includedir="/usr/include"
fi

dnl Fix "localstatedir" variable if it hasn't been specified...
if test "$localstatedir" = "\${prefix}/var"; then
	if test "$prefix" = "/"; then
		if test "$uname" = Darwin; then
			localstatedir="/private/var"
		else
			localstatedir="/var"
		fi
	else
		localstatedir="$prefix/var"
	fi
fi

dnl Fix "sysconfdir" variable if it hasn't been specified...
if test "$sysconfdir" = "\${prefix}/etc"; then
	if test "$prefix" = "/"; then
		if test "$uname" = Darwin; then
			sysconfdir="/private/etc"
		else
			sysconfdir="/etc"
		fi
	else
		sysconfdir="$prefix/etc"
	fi
fi

dnl Fix "libdir" variable...
if test "$libdir" = "\${exec_prefix}/lib"; then
	case "$uname" in
		Linux*)
			if test -d /usr/lib64 -a ! -d /usr/lib64/fakeroot; then
				libdir="$exec_prefix/lib64"
			fi
			;;
	esac
fi