Modified: trunk/dports/science/lalinspiral/Portfile (100317 => 100318)

--- trunk/dports/science/lalinspiral/Portfile	2012-12-08 07:07:32 UTC (rev 100317)
+++ trunk/dports/science/lalinspiral/Portfile	2012-12-08 07:07:38 UTC (rev 100318)
@@ -1,6 +1,7 @@
 # $Id$
 
 PortSystem    1.0
+PortGroup     active_variants 1.1
 
 name          lalinspiral
 version       1.4.0
@@ -40,35 +41,9 @@
 use_parallel_build yes
 
 variant swig_python description {Build python SWIG bindings} {
-  pre-fetch {
-    if { ![file exists ${prefix}/lib/python2.7/site-packages/lal/_lal.so] } {
-      ui_error "
-****
-**** LALInspiral +swig_python requires LAL +swig_python, please
-**** reinstall LAL with the +swig_python variant.
-****
-"
-    error "${name} +swig_python requires lal +swig_python"
-    }
-    if { ![file exists ${prefix}/lib/python2.7/site-packages/lalframe/_lalframe.so] } {
-      ui_error "
-****
-**** LALInspiral +swig_python requires LALFrame +swig_python, please
-**** reinstall LALFrame with the +swig_python variant.
-****
-"
-    error "${name} +swig_python requires lal +swig_python"
-    }
-    if { ![file exists ${prefix}/lib/python2.7/site-packages/lalsimulation/_lalsimulation.so] } {
-      ui_error "
-****
-**** LALInspiral +swig_python requires LALSimulation +swig_python,
-**** please reinstall LALSimulation with the +swig_python variant.
-****
-"
-    error "${name} +swig_python requires lalsimulation +swig_python"
-    }
-  }
+  require_active_variants lal swig_python
+  require_active_variants lalframe swig_python
+  require_active_variants lalsimulation swig_python
   depends_build-append  port:swig-python \
                         port:py27-numpy
   configure.args-append --enable-swig-python