omniORB: Add python27 and python36 variants

 - Fix python files install location

Closes: https://trac.macports.org/ticket/55790

devel/omniORB/Portfile

@@ -18,7 +18,6 @@ long_description    omniORB is a robust high performance CORBA ORB for C++ and \
 homepage            http://omniorb.sourceforge.net/
 
 conflicts_build     ${name}
-depends_lib         port:python27
 
 master_sites        sourceforge:project/omniorb/omniORB/omniORB-${version}/
 use_bzip2           yes
@@ -32,7 +31,6 @@ post-patch {
         ${worksrcpath}/mk/beforeauto.mk.in
 }
 
-configure.python    ${prefix}/bin/python2.7
 configure.args      CC="${configure.cc}" \
                     CXX="${configure.cxx}" \
                     CCFLAGS="[get_canonical_archflags cc]" \
@@ -44,14 +42,45 @@ if {${build_arch} eq "x86_64" && ${os.platform} eq "darwin"} {
     configure.args-append --build=${build_arch}-apple-${os.platform}${os.version}
 }
 
+# force a global variable
+set python_framework []
+
+variant python27 conflicts python36 description {Build Python 2.7 IDL support} {
+    configure.python            ${prefix}/bin/python2.7
+    set python_framework        ${frameworks_dir}/Python.framework/Versions/2.7/lib
+    depends_lib-append          port:python27
+    configure.pkg_config_path   ${python_framework}/lib/pkgconfig
+
+    notes "Install py27-omniORBpy for omniORBpy."
+}
+
+variant python36 conflicts python27 description {Build Python 3.6 IDL support} {
+    configure.python            ${prefix}/bin/python3.6
+    set python_framework        ${frameworks_dir}/Python.framework/Versions/3.6/lib
+    depends_lib-append          port:python36
+    configure.pkg_config_path   ${python_framework}/lib/pkgconfig
+
+    notes "Install py36-omniORBpy for omniORBpy."
+}
+
+if {![variant_isset python27]} {
+    default_variants +python36
+}
+
 variant ssl description {Enable SSL support} {
     configure.args-append   --with-openssl
     depends_lib-append      path:lib/libssl.dylib:openssl
 }
 
-notes "
-Install py27-omniORBpy for omniORBpy.
-"
+post-destroot {
+    if {[variant_isset python36]} {
+        # omniORB installs into /opt/local/lib/python3.6/site-packages/
+        # but omniORBpy installs into /opt/local/Library/Frameworks/Python.framework/Versions/X.Y/
+        # so adjust locations for this package
+        file mkdir [file normalize ${destroot}${python_framework}]
+        file rename [glob ${destroot}${prefix}/lib/python*] ${destroot}${python_framework}
+    }
+}
 
 livecheck.type      regex
 livecheck.url       http://omniorb.sourceforge.net/