py-wxpython: fix stub port

git-svn-id: https://svn.macports.org/repository/macports/trunk/dports@92322 d073be05-634f-4543-b044-5fe20cf6d1d6

python/py-wxpython/Portfile

@@ -28,6 +28,8 @@ use_bzip2		yes
 checksums           rmd160  94eae06087bdd930e21bf90cc6672f93a1f5a17a \
                     sha256  1f3f153d9f1504c6ce2d2c4b23e940b8f58b81f4cba35cda1a5bb31142243cd0
 
+if {$subport != $name} {
+
 depends_lib-append	port:wxWidgets
 
 # wxWidgets is not 64-bit
@@ -63,7 +65,6 @@ if {${os.platform} == "darwin" && ${os.major} >= 10} {
         CPP=${configure.cpp}
 }
 
-if {$subport != $name} {
     post-destroot {
         xinstall -d -m 755 ${destroot}${prefix}/share/doc/
         file copy ${worksrcpath}/docs ${destroot}${prefix}/share/doc/${subport}