$OpenBSD$
--- CMakeLists.txt.orig	Fri Apr 30 23:16:02 2010
+++ CMakeLists.txt	Fri Apr 30 23:16:29 2010
@@ -19,9 +19,6 @@ include(MacroEnsureOutOfSourceBuild)
 include(MacroGetSubversionRevision)
 macro_get_subversion_revision(SVN_REVISION)
 
-# disallow in-source build
-macro_ensure_out_of_source_build("${APPLICATION_NAME} requires an out of source build. Please create a separate build directory and run 'cmake /path/to/gpsdrive [options]' there.")
-
 # macro_optional_find_package() is the same as FIND_PACKAGE(<name>) but additionally creates an OPTION(WITH_<name>)
 # so the checking for the software can be disabled via ccmake or -DWITH_<name>=OFF
 #MACRO_OPTIONAL_FIND_PACKAGE(DBUS)