[Sbcl-devel] Build failure on macosx (Leopard) x86, without threads

[Harald Hanche-O. <ha...@ma...>]

On Mac OS X 10.5.8, MacBook Pro (x86), from git as of a couple minutes
ago:

cc -g -Wall -O2 -fdollars-in-identifiers -mmacosx-version-min=10.5 -D_DARWIN_USE_64_BIT_INODE -arch x86_64 -fno-omit-frame-pointer -pagezero_size 0x100000 -I.  -c -o x86-64-arch.o x86-64-arch.c
x86-64-arch.c: In function 'context_eflags_addr':
x86-64-arch.c:74: warning: pointer targets in return differ in signedness
x86-64-arch.c: In function 'sigtrap_handler':
x86-64-arch.c:279: warning: implicit declaration of function 'access_control_stack_pointer'
x86-64-arch.c:280: error: invalid lvalue in assignment
make: *** [x86-64-arch.o] Error 1

Indeed, the offending line says

    access_control_stack_pointer(arch_os_get_current_thread()) =
        (lispobj *)*os_context_sp_addr(context);

and running the file through the preprocessor reveals that the macro
access_control_stack_pointer is not defined.

A look in thread.h indicates that the macro is not defined if
LISP_FEATURE_SB_THREAD is undefined while LISP_FEATURE_X86_64 is
defined.

- Harald