Use 8k pages in openbsd malloc code on alpha. Bug and solution found by weasel. Also, when initializing openbsd malloc code, check that compiled page size matches output of getpagesize().
svn:r14056
Add a malloc_good_size() implementation to OpenBSD_malloc_Linux.c. Also, make configure.in not use support functions for the platform malloc when we are not using the platform mallocs.
svn:r14010
Have OpenBSD_malloc_Linux.c use SIZE_T_MAX from torint.h, instead of checking cpu macros. There is always one more cpu you havent checked for.
svn:r14000
Add openbsd memory allocator discussed in bug 468, to make it easier for linux users to get non-awful allocation patterns. Use --enable-openbsd-malloc to turn it on. Needs more testing.
svn:r13544
