import of rt 3.0.4

[freeside.git] / rt / m4 / rt_enable_layout.m4

diff --git a/rt/m4/rt_enable_layout.m4 b/rt/m4/rt_enable_layout.m4
new file mode 100644 (file)
index 0000000..cadec1c
--- /dev/null
+++ b/rt/m4/rt_enable_layout.m4
@@ -0,0 +1,36 @@
+dnl
+dnl @synopsis RT_ENABLE_LAYOUT()
+dnl
+dnl Enable a specific directory layout for the installation to use.
+dnl This configures a command-line parameter that can be specified
+dnl at ./configure invocation.
+dnl
+dnl The use of this feature in this way is a little hackish, but
+dnl better than a heap of options for every directory.
+dnl
+dnl This code is heavily borrowed *cough* from the Apache 2 code.
+dnl
+
+AC_DEFUN([RT_ENABLE_LAYOUT],[
+AC_ARG_ENABLE(layout,
+             AC_HELP_STRING([--enable-layout=LAYOUT],
+                            [Use a specific directory layout (Default: RT3)]),
+             LAYOUT=$enableval)
+
+if test "x$LAYOUT" = "x"; then
+       LAYOUT="RT3"
+fi
+RT_LAYOUT($srcdir/config.layout, $LAYOUT)
+AC_MSG_CHECKING(for chosen layout)
+if test "x$rt_layout_name" = "xno"; then
+       if test "x$LAYOUT" = "xno"; then
+               AC_MSG_RESULT(none)
+       else
+               AC_MSG_RESULT($LAYOUT)
+       fi
+       AC_MSG_ERROR([a valid layout must be specified (or the default used)])
+else
+       AC_SUBST(rt_layout_name)
+       AC_MSG_RESULT($rt_layout_name)
+fi
+])