Building Boost.Build engine with toolset darwin... 
Failed to build Boost.Build build engine
Consult 'bootstrap.log' for more details

###
### Using 'darwin' toolset.
###
rm -rf bootstrap
mkdir bootstrap
cc -o bootstrap/jam0 command.c compile.c constants.c debug.c execcmd.c frames.c function.c glob.c hash.c hdrmacro.c headers.c jam.c jambase.c jamgram.c lists.c make.c make1.c object.c option.c output.c parse.c pathsys.c regexp.c rules.c scan.c search.c subst.c timestamp.c variable.c modules.c strings.c filesys.c builtins.c class.c cwd.c native.c md5.c w32_getreg.c modules/set.c modules/path.c modules/regex.c modules/property-set.c modules/sequence.c modules/order.c execunix.c fileunix.c pathunix.c
execcmd.c:120:5: error: implicit declaration of function 'out_printf' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    out_printf( "...interrupted\n" );
    ^
1 error generated.
make.c:132:13: error: implicit declaration of function 'out_printf' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
            out_printf( "...found %d target%s...\n", counts->targets,
            ^
make.c:184:17: error: implicit declaration of function 'out_printf' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
                out_printf( "fate change  %s from %s to %s (as dependant of %s)\n",
                ^
make.c:215:17: error: implicit declaration of function 'out_printf' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
                out_printf( "fate change  %s from %s to %s (by rebuild)\n",
                ^
make.c:300:9: error: implicit declaration of function 'out_printf' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        out_printf( "make\t--\t%s%s\n", spaces( depth ), object_str( t->name ) );
        ^
make.c:300:41: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
        out_printf( "make\t--\t%s%s\n", spaces( depth ), object_str( t->name ) );
                                        ^~~~~~~~~~~~~~~
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
make.c:300:41: note: use array indexing to silence this warning
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                                           ^
make.c:307:41: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
        out_printf( "make\t--\t%s%s\n", spaces( depth ), object_str( t->name ) );
                                        ^~~~~~~~~~~~~~~
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
make.c:307:41: note: use array indexing to silence this warning
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                                           ^
make.c:380:49: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
            out_printf( "bind\t--\t%s%s: %s\n", spaces( depth ),
                                                ^~~~~~~~~~~~~~~
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
make.c:380:49: note: use array indexing to silence this warning
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                                           ^
make.c:388:49: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
            out_printf( "time\t--\t%s%s: %s\n", spaces( depth ),
                                                ^~~~~~~~~~~~~~~
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
make.c:388:49: note: use array indexing to silence this warning
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                                           ^
make.c:393:49: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
            out_printf( "time\t--\t%s%s: %s\n", spaces( depth ),
                                                ^~~~~~~~~~~~~~~
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
make.c:393:49: note: use array indexing to silence this warning
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                                           ^
make.c:735:13: error: implicit declaration of function 'out_flush' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
            out_flush();
            ^
make.c:758:13: warning: adding 'int' to a string does not append to the string [-Wstring-plus-int]
            spaces( depth ), object_str( t->name ) );
            ^~~~~~~~~~~~~~~
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                    ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
make.c:758:13: note: use array indexing to silence this warning
make.c:85:44: note: expanded from macro 'spaces'
#define spaces(x) ( "                    " + ( x > 20 ? 0 : 20-x ) )
                                           ^
6 warnings and 5 errors generated.
filesys.c:360:10: error: implicit declaration of function 'filelist_empty' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if ( filelist_empty( archive->members ) )
         ^
filesys.c:496:10: error: implicit declaration of function 'filelist_empty' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if ( filelist_empty( list ) )
         ^
filesys.c:534:10: error: implicit declaration of function 'filelist_empty' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if ( filelist_empty( list ) )
         ^
filesys.c:570:10: error: implicit declaration of function 'filelist_empty' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if ( filelist_empty( list ) ) return list;
         ^
filesys.c:593:11: error: implicit declaration of function 'filelist_empty' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if ( !filelist_empty( list ) ) result = list->size;
          ^
filesys.c:602:10: error: implicit declaration of function 'filelist_empty' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if ( filelist_empty( list ) ) return;
         ^
6 errors generated.
modules/path.c:16:12: error: implicit declaration of function 'file_query' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    return file_query( list_front( lol_get( frame->args, 0 ) ) ) ?
           ^
1 error generated.
fileunix.c:233:10: error: implicit declaration of function 'filelist_empty' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if ( filelist_empty( archive->members ) )
         ^
fileunix.c:235:14: error: implicit declaration of function 'file_collect_archive_content_' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
        if ( file_collect_archive_content_( archive ) < 0 )
             ^
fileunix.c:235:14: note: did you mean 'file_collect_dir_content_'?
fileunix.c:110:5: note: 'file_collect_dir_content_' declared here
int file_collect_dir_content_( file_info_t * const d )
    ^
fileunix.c:294:12: error: implicit declaration of function 'filelist_empty' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
    if ( ! filelist_empty( archive->members ) ) filelist_free( archive->members );
           ^
3 errors generated.