While writing some ELF header modules, I had a bad fit of Laziness, and decided that I didn't want to manually transfer the plethora of #define's over to my perl script. This quick hack strips comments and changes #define's to equivilant 'use constant' format.

cat /usr/include/linux/elf.h | perl def2const.pl >>Constants.pm

Much joy. Update: oops, forgot an extra + in there.

#!/usr/bin/perl -w
use strict;
map {
 print if s!#\s*define\s+(\S+)\s+([^(?:\s*/\*.*\*/)]+)$!use constant $
+1 => $2;!g;
} <>;

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In reply to Converting C #define to 'use constant' statements by rpc

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