build: make distcheck actually work

Makefile.am

@@ -38,6 +38,8 @@ edit = @sed \
 	-e 's|@localstatedir[@]|$(localstatedir)|g' \
 	-e 's|@libexecdir[@]|$(libexecdir)|g'
 
+DISTCHECK_CONFIGURE_FLAGS = --with-udev-base-dir=$dc_install_base
+
 DISTCLEANFILES = \
 	$(dbusactivation_DATA)
 

autogen.sh

@@ -6,7 +6,7 @@ test -z "$srcdir" && srcdir=.
 REQUIRED_AUTOMAKE_VERSION=1.7
 PKG_NAME=ModemManager
 
-(test -f $srcdir/configure.in \
+(test -f $srcdir/configure.ac \
   && test -f $srcdir/src/mm-modem.c) || {
     echo -n "**Error**: Directory "\`$srcdir\'" does not look like the"
     echo " top-level $PKG_NAME directory"

configure.ac

@@ -27,6 +27,15 @@ else
 fi
 AC_SUBST(DBUS_SYS_DIR)
 
+AC_ARG_WITH(udev-base-dir, AS_HELP_STRING([--with-udev-base-dir=DIR], [where udev base directory is]))
+
+if test -n "$with_udev_base_dir" ; then
+    UDEV_BASE_DIR="$with_udev_base_dir"
+else
+    UDEV_BASE_DIR="/lib/udev"
+fi
+AC_SUBST(UDEV_BASE_DIR)
+
 GLIB_GENMARSHAL=`pkg-config --variable=glib_genmarshal glib-2.0`
 AC_SUBST(GLIB_GENMARSHAL)