Add facility to force BUILDING_FROM_SVN=no from outside the Gnucash build system

Needed by packagers that maintain the packaging code in svn, svk or git too


git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@19990 57a11ea4-9604-0410-9ed3-97b8803252fd

util/gnc-svnversion

@@ -17,6 +17,17 @@ my_die()
   exit 1
 }
 
+if [ "$BUILDING_FROM_SVN" = "0" -o \
+     "$BUILDING_FROM_SVN" = "no" -o \
+     "$BUILDING_FROM_SVN" = "false" ]; then
+  # Something outside of the Gnucash build system knows that we
+  # are NOT building from svn, svk or git checkout.
+  # We should believe it (needed by packagers that maintain the
+  # packaging code in svn, svk or git too)
+  echo "Environment variable BUILDING_FROM_SVN=$BUILDING_FROM_SVN" >&2
+  exit 1
+fi
+
 # Make sure we have a srcdir
 [ -n "$1" ] || my_die "Usage: $0 <srcdir>"
 [ -d "$1" ] || my_die "$0: $1: not a directory"