2008/10/19 Niko Tyni <[email protected]>: > Patch and description by Rainer Weikusat, forwarded from > http://bugs.debian.org/502297 : > > The h2xs program scans C headers for 'constants' either defined > as preprocessor macros or via enum and builds a sorted list of names > containing the macros and enum values found in this way. This list > is then passed to ExtUtils::Constant::WriteConstants, which generates > the corresponding const-c.inc and const-xs.inc files when perl Makefile.PL > is executed. By default, ie when just processing a constant name, this > function assumes that the name refers to a preprocessor macro and > the generated C-code in const-c.inc contains conditional compilation > directives to either return the macro value or Perl_constant_NOTDEF, > depending on the defined'ness of the macro. This causes constants > defined as enumeration values to never be available to module users, > because they are not visible to the preprocessor. > > Instead of passing just a name to the WriteConstants-routine, a > hashref (members documented in ExtUtils::Constant::Base(3perl)) > can be used to specify more details regarding what code > should be generated for a particular constant. For an enumeration > value, a hashref constructed as > > { name => <name of the constant>, macro => 1 } > > could be used to get rid of the inappropriate preprocessor > directives. > > ( Another version of the same fix was also submitted by Daniel Burr in > http://bugs.debian.org/320286 )
Thanks, applied as 36d7a91d2021ad52ce172e2c75a7bc5fa07e6354 to bleadperl. -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
