[ET Trac] [Einstein Toolkit] #342: Add CCTK_POINTER_SIZE make variable

[Einstein Toolkit]

#342: Add CCTK_POINTER_SIZE make variable
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 Reporter:  hinder       |       Owner:     
     Type:  enhancement  |      Status:  new
 Priority:  minor        |   Milestone:     
Component:  Cactus       |     Version:     
 Keywords:  flesh        |  
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 It is sometimes necessary to know in a thorn's configuration script
 whether 32 bit or 64 bit code is to be generated. See the discussion in
 ticket #339.

 The attached patch adds a CCTK_POINTER_SIZE make variable to
 make.config.defn which is accessible as a shell variable to configuration
 scripts.  This will be 4 when compiling for 32 bit, and 8 when compiling
 for 64 bit.

 I am not very expert in autoconf, so the patch might have to be modified.
 It seems to work, however.

 I have not included the generated configure script - this should be
 generated by the person who commits the final patch.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/342>
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