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MAIN:ragge:20110226063207 created by ragge on 26 February 2011, 07:32:07 +0100 (4 years ago) (patch) Clean up heap after macro expansion. Increase pushback buffer to 2*64k.
malloc() pushback buffer instead of having it on the stack to avoid hitting
Harmless macros may sometimes expand to something really big, and as cpp now
rescan the whole buffer over again for more macros to expand a large pushback
buffer is needed.