Re: Modify the bug#679 fix

[Bruno H. <br...@cl...>]

Hi Sam,

Thanks for your fix, along the discussed lines. However, there is a GC-safety bug.

How to reproduce:
- Set MULTIBUILD_32_OPTIONS so that the build will find libsigsegv and optionally
  also readline and libffcall.
- $ CC="gcc -m32" CXX="g++ -m32" make -f Makefile.devel build-porting32-gcc-debug_gcsafety

It crashes like this:

./lisp.run -B . -N locale -E UTF-8 -Emisc 1:1 -Epathname 1:1 -norc -q -M lispinit.mem -x '(truename (make-stream :output))'
STACK size: 98206 [0xf6fc3f00 0xf6f64088]
Exiting on signal 6

When I look at it in gdb:
$ gdb lisp.run core
(gdb) where
...
#8  0xf73e6207 in abort () from /lib32/libc.so.6
#9  0x0819dc5b in ngci_pointable (obj=...) at ../src/lispbibl.d:7260
#10 0x081a035f in file_stream_truename (stream=...) at ../src/pathname.d:889
#11 0x081b9e3b in C_truename () at ../src/pathname.d:5630
...

Bruno