Unbreak poll guard.
Fix memory access out of bound problem in command line argument processing.
Merge pull request #21 from vyzo/master

Unbreak poll config guard
Fix missing source location on unbound variable exceptions.
Avoid adding source location on #.expr when expr returns a source object.
Add support for generating heartbeat interrupts using a poll based counter (useful for environments which don't support asynchronous interrupts, such as the emscripten compiler)
Prevent polling at the moment of a thread context switch to guarantee forward progress when heartbeat interrupt rate is very high.
Fix debugging code which is activated when --enable-debug is used (printing of traces by GC should indirect forwarded objects, and avoid zapping live stack area)
Add misc/checkout-latest-good-commit script which iterates over previous commits to find the latest which allows a command to run successfully
Undo forced use of ___alloc_scmobj by ##bignum.make
Introduce ___SIZE_TS to mimick uses of "long" type prior to commit c89610066937d51eeeac866bb6320bcd5bd61f87 which had introduced a memory management bug (this will need further investigation to determine where in the code the sign is important)
Fix process-statistics issues on 64 bits, and portability issues (specifically on emscripten)
Fix bootstrapping instructions so that modifications to the Gambit compiler's sources since the latest release are taken into account.
Fix typo
Implement thread specific interrupt mask.
Add ##set-gambcdir!
Fix trampoline performance problem with emscripten
Merge pull request #28 from jazzscheme/master

Add a setter function ##set-gambcdir!
Fix build on OpenBSD's mips64 platforms.

OpenBSD's mips64 platforms (such as OpenBSD/sgi) do provide an get_fpc_csr(),
but lack the union fpc_csr. The configure script checks for get_fpc_csr() and
assumes union fpc_csr is also present (this is true for Irix, but not OpenBSD).
Merge pull request #29 from jasperla/master

Fix build on OpenBSD's mips64 platforms