[MacPorts] #35508: arpack port does not work on Lion with GFortran 4.6.2 due to Accelerate problem

[MacPorts]

#35508: arpack port does not work on Lion with GFortran 4.6.2 due to Accelerate
problem
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 Reporter:  gcrosswhite@…          |       Owner:  mmoll@…           
     Type:  defect                 |      Status:  new               
 Priority:  Normal                 |   Milestone:                    
Component:  ports                  |     Version:  2.1.2             
 Keywords:                         |        Port:  arpack            
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Comment(by gcrosswhite@…):

 I did a grep through the sources and changed every call to either CDOTC or
 ZDOTC so that they were treated like subroutines with the return value
 stored in the first argument rather than like functions.  I did some spot
 checks to make sure that the resulting library is good;  the changes made
 the double-precision complex valued tests work (e.g., zndrv* in
 EXAMPLES/COMPLEX) but for some reason lots of other test including the
 single-precision complex tests in COMPLEX/ fail both before and after
 makings the changes;  however, they do so with an error message rather
 than a segfault so I don't think that their problem is related to this
 one, and in particular these changes don't seem to be making anything
 worse.

 I have attached the patches for all of the files that I changed;  there
 are 24 in total:  4 base files * 2 precisions * 3 modes (sequential,
 parallel MPI, parallel BLACS).

 '''VERY IMPORTANT:'''  You most likely already were going to do this but
 just to be sure:  make sure that this patch is ''only'' applied when using
 Accelerate!  This is because only Accelerate has the weird ABI issue that
 requires this rather strange form of patch in order to work the quirk, so
 if the path it is applied when using, say, atlas, then it will actually
 break things rather than fixing them.

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Ticket URL: <https://trac.macports.org/ticket/35508#comment:6>
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