libgcc and libgcc-devel interfere

[dstrubbe (David Strubbe)]

There is some kind of problem with libgcc and libgcc-devel, such that they cannot activate and deactivate cleanly in the presence of the other. Possibly this is related to the warnings that the Portfile from the registry could not be executed.

$ sudo port activate libgcc
--->  Computing dependencies for libgcc
Warning: Failed to execute portfile from registry for libgcc @5.2.0_0
--->  Activating libgcc @5.2.0_0
Error: port activate failed: Image error: /opt/local/lib/libgcc/libatomic.1.dylib is being used by the active libgcc-devel port.  Please deactivate this port first, or use 'port -f activate libgcc' to force the activation.
$ port installed libgcc
The following ports are currently installed:
  libgcc @5.2.0_0
$ sudo port -f deactivate libgcc-devel
$ sudo port install libgc
$ sudo port activate libgcc-devel  @6-20160410_0
--->  Computing dependencies for libgcc-devel
Warning: Failed to execute portfile from registry for libgcc-devel @6-20160410_0
--->  Activating libgcc-devel @6-20160410_0
Error: port activate failed: Image error: /opt/local/lib/libgcc/libatomic.1.dylib is being used by the active libgcc port.  Please deactivate this port first, or use 'port -f activate libgcc-devel' to force the activation.
$ port installed libgcc
libgcc @5.3.0_1 (active)

[dstrubbe (David Strubbe)]

For the record, this is with OSX 10.10.5.