FIX: Deployed Matlab apps must not call addpath()

https://mathworks.com/help/compiler/isdeployed.html

	The path of a deployed application is fixed at compile time
	and cannot change. Use isdeployed to ensure that the application
	uses path modifying functions, such as addpath, before deployment.

This fixes the case where nipype calls SPM12 Standalone, associated
to Matlab Compiler Runtime (MCR) R2019a (9.6) or later. Upcoming versions
of SPM12 Standalone will most probably be compiled with Matlab R2021b,
and hence will be subject to this bug.

Author: DimitriPapadopoulos

nipype/interfaces/matlab.py

@@ -191,7 +191,7 @@ def _gen_matlab_command(self, argstr, script_lines):
         else:
             prescript.insert(0, "fprintf(1,'Executing code at %s:\\n',datestr(now));")
         for path in paths:
-            prescript.append("addpath('%s');\n" % path)
+            prescript.append("if ~(ismcc || isdeployed), addpath('%s'); end;\n" % path)
 
         if not mfile:
             # clean up the code of comments and replace newlines with commas