--- /dev/null
+dnl Copyright (C) 2009 Sun Microsystems
+dnl This file is free software; Sun Microsystems
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([PANDORA_BUILDING_FROM_VC],[
+
+ ac_cv_building_from_vc=no
+
+ AS_IF([test -d "${srcdir}/.bzr"],[
+ ac_cv_building_from_bzr=yes
+ ac_cv_building_from_vc=yes
+ ],[
+ ac_cv_building_from_bzr=no
+ ])
+
+ AS_IF([test -d "${srcdir}/.svn"],[
+ ac_cv_building_from_svn=yes
+ ac_cv_building_from_vc=yes
+ ],[
+ ac_cv_building_from_svn=no
+ ])
+
+ AS_IF([test -d "${srcdir}/.hg"],[
+ ac_cv_building_from_hg=yes
+ ac_cv_building_from_vc=yes
+ ],[
+ ac_cv_building_from_hg=no
+ ])
+
+])
+