build-sys: add tools/config-gen and basic compilation scenarios

Signed-off-by: Karel Zak <kzak@redhat.com>

tools/config-gen

@@ -0,0 +1,31 @@
+#!/bin/bash
+#
+# Copyright (C) 2011 Karel Zak <kzak@redhat.com> 
+# 
+
+test -f mount/mount.c || {
+	echo
+	echo "You must run this script in the top-level util-linux directory"
+	echo
+	exit 1
+}
+
+. tools/config-gen-functions.sh
+
+while [ -n "$1" ]; do
+	opts="$opts $(ul_get_configuration tools/config-gen.d/$1.conf)"
+	shift
+done
+
+opts=$(echo $opts | tr " " "\n" | sort -u)
+echo "Configure options:"
+for x in $opts; do
+	echo "	$x"
+done
+if [ -n "$CFLAGS" ]; then
+	echo "CFLAGS:	$CFLAGS"
+	export CFLAGS="$CFLAGS"
+fi
+
+echo
+./configure $opts

tools/config-gen-functions.sh

@@ -0,0 +1,33 @@
+#
+# Copyright (C) 2011 Karel Zak <kzak@redhat.com> 
+#
+
+
+# Returns configure options from selected config file
+#
+#    ul_get_configuration <config-file>
+#
+# for example
+#
+#    ul_get_configuration $top_srcdir/tools/config-gen.d/all
+#
+function ul_get_configuration {
+	local conf="$1"
+	local dir=$(dirname $1)
+	local opts=$(cat $conf)
+	local old_opts=
+
+	while [ "$opts" != "$old_opts" ]; do
+		local new_opts=
+
+		old_opts="$opts"
+		for citem in $opts; do
+			case $citem in
+			include:*) new_opts="$new_opts $(cat $dir/${citem##*:})" ;;
+			*) new_opts="$new_opts $citem" ;;
+			esac
+		done
+		opts="$new_opts"
+	done
+	echo $opts | tr " " "\n" | sort -u
+}

tools/config-gen.d/all-non-nls.conf

@@ -0,0 +1,2 @@
+include:all.conf
+include:non-nls.conf

tools/config-gen.d/all.conf

@@ -0,0 +1,6 @@
+include:core.conf
+include:static.conf
+
+--enable-most-builds
+--enable-login-stat-mail
+--enable-partx

tools/config-gen.d/audit.conf

@@ -0,0 +1,4 @@
+include:core.conf
+
+--with-audit
+--enable-login-utils

tools/config-gen.d/core.conf

@@ -0,0 +1,2 @@
+--disable-rpath
+--disable-makeinstall-chown

tools/config-gen.d/devel.conf

@@ -0,0 +1,8 @@
+include:all.conf
+include:audit.conf
+include:selinux.conf
+include:static.conf
+
+--enable-gtk-doc
+--enable-libmount-mount
+--with-utempter

tools/config-gen.d/non-libblkid.conf

@@ -0,0 +1,3 @@
+include:core.conf
+
+--disable-libblkid

tools/config-gen.d/non-libmount.conf

@@ -0,0 +1,3 @@
+include:core.conf
+
+--disable-libmount

tools/config-gen.d/non-libs.conf

@@ -0,0 +1,4 @@
+include:core.conf
+include:non-libblkid.conf
+include:non-libmount.conf
+include:non-libuuid.conf

tools/config-gen.d/non-libuuid.conf

@@ -0,0 +1,3 @@
+include:core.conf
+
+--disable-libuuid

tools/config-gen.d/non-nls.conf

@@ -0,0 +1,3 @@
+include:core.conf
+
+--disable-nls

tools/config-gen.d/selinux.conf

@@ -0,0 +1,4 @@
+include:core.conf
+
+--with-selinux
+--enable-login-utils

tools/config-gen.d/slang.conf

@@ -0,0 +1,3 @@
+include:core.conf
+
+--with-slang

tools/config-gen.d/static.conf

@@ -0,0 +1,3 @@
+include:core.conf
+
+--enable-static-programs