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djberg96 (2603)
djberg96
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Friday December 10, 2004
03:58 PM
$CPPFLAGS for Win32
My hardcore dive into the Win32 API has revealed something interesting. It turns out that certain functions are only available based on the value of the certain macros. So, on my XP Pro box for example, the AttachConsole() function is not available unless _WIN32_WINNT is set to 0x0501 or greater first (either in the Makefile or within the source).
This is a pain now for extension writers on Win32, and will become crucial later, when 64 bit Windows becomes more popular. We *could* all just write a simple WIN32::API script within our Makefiles to get the major and minor version of Windows and set the value accordingly. The *better* option would be to have MakeMaker automatically set this value for me so I don't have to.
I haven't checked for certain, but I don't *think* Perl's ExtUtils::MakeMaker does this (nor does Ruby's mkmf). Time to submit a patch.
help them think they understand.
--Larry Wall
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