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(YYSTACK_ALLOC): Resurrect this macro, with its old meaning. (YYSTACK_FREE, YYSTACK_GAP_MAX, YYSTACK_BYTES, YYSTACK_RELOCATE): New macros. (union yyalloc): New type. (__yy_memcpy): Last arg is size_t, not unsigned int, to remove an arbitrary restriction on hosts where size_t is wider than int. (yyparse): Don't dump core if alloca or malloc fails; instead, report a parser stack overflow. Allocate just one block of memory for all three stacks, instead of allocating three blocks; this typically is faster and reduces fragmentation. Do not limit the number of items in the stack to a value that fits in 'int', as this is an arbitrary limit on hosts with 64-bit size_t and 32-bit int.
This directory contains the Bison parser generator. See the file INSTALL for compilation and installation instructions. See the file doc/FAQ for frequently asked questions. It was once true that, when installing Bison on Sequent (or Pyramid?) systems, you had to be in the Berkeley universe. This may no longer be true; we have no way to tell. On VMS, you will probably have to create Makefile from Makefile.in by hand. Remember to do `SET COMMAND BISON' to install the data in `BISON.CLD'. VMS and MS-DOS builds are probably broken right now. If you are able to build Bison on either platform and you need to make changes to do so, please submit those changes as a bug report. Send bug reports to bug-bison@gnu.org. Please include the version number from `bison --version', and a complete, self-contained test case in each bug report. If you have questions about using Bison which the documentation does not answer, send mail to help-bison@gnu.org.