[KinoSearch] Compile 0.30_07 on FreeBSD 7

[Peter Karman]

Peter Karman wrote on 11/14/09 12:49 AM:
> Marvin Humphrey wrote on 11/13/09 2:43 PM:
> 
>> There should be a source file, _charm_try.c in your distro directory.  It
>> should contain the following source code:  
>>
>>   int main() { return 0; }
>>
>> For some reason, that's not compiling.  Instead, we get this message:
>>
>>   Syntax error: "(" unexpected
>>
>> Confirm that that file is there, and that it contains the source code it
>> should.
> 
> I have a freebsd 7.2 install available and was able to reproduce. The problem
> seems to be that the include path generated for compiling the _charm_try.c file
> is a single '( ' and so bash croaks when trying to execute the cc command. If
> you try and compile with just a simple:
> 
>  cc _charm_try.c
> 
> it works with no problem.
> 
> I threw some fprintf to stderr in the (generated?)
> 
> charmonizer/gen/Charmonizer/Core/Compiler.c
> 
> file around lines 110-122 and got this output:
> 
> Creating os object...
> Trying to find a bit-bucket a la /dev/null...
> Trying to find a supported compiler...
> Creating compiler object...
> Trying to compile a small test file...
> inc_dir:  (
> exe: cc _charm_try.c -o _charm_try -I  (
> -DAPPLLIB_EXP="/usr/local/lib/perl5/5.8.9/BSDPAN" -DHAS_FPSETMASK
> -DHAS_FLOATINGPOINT_H -fno-strict-aliasing -pipe -I/usr/local/include
> Syntax error: "(" unexpected
> 
> I assume the inc_dir values come from Perl Config, but I gave up trying to dig
> backwards from here.
> 
> Hope that helps you some Marvin.
> 

More info. The problem seems to come in the call to add_inc_dir(".") at line 58
in Compiler.c. If I comment that out, everything compiles and tests out just fine.

I threw some more debugging in add_inc_dir() to see what was going on. strdup()
returns a copy of "." as expected, but the assignment to self->inc_dirs breaks
somehow.

Creating compiler object...
copy of dir = '.' at [0]
[0] == ' ('
passed in '.', num_dirs=1, last=' ('
strdup '.' == '.'
Trying to compile a small test file...
inc_dir: ' (.'
Failed to write charmony.h at buildlib/Lucy/Build.pm line 196.


The code:

static void
add_inc_dir(Compiler *self, const char *dir)
{
    size_t num_dirs = 0;
    char **dirs = self->inc_dirs;
    char *copy;

    /* count up the present number of dirs, reallocate */
    while (*dirs++ != NULL) { num_dirs++; }
    num_dirs += 1; /* passed-in dir */
    self->inc_dirs = realloc(self->inc_dirs, num_dirs + 1);

    /* put the passed-in dir at the end of the list */
    copy = strdup(dir);
    fprintf(stderr, "copy of dir = '%s' at [%d]\n", copy, num_dirs - 1);
    self->inc_dirs[num_dirs - 1] = copy; // strdup(dir);
    fprintf(stderr, "[%d] == '%s'\n", num_dirs-1, self->inc_dirs[num_dirs-1]);
    self->inc_dirs[num_dirs] = NULL;
    fprintf(stderr, "passed in '%s', num_dirs=%d, last='%s'\n", dir, num_dirs,
self->inc_dirs[num_dirs -1 ]);
    fprintf(stderr, "strdup '%s' == '%s'\n", dir, strdup(dir));
}



I'm running:

FreeBSD freebsd.peknet.com 7.2-RELEASE FreeBSD 7.2-RELEASE #0: Fri May  1
08:49:13 UTC 2009     root at walker.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

under VirtualBox on a 64-bit macbook pro.


-- 
Peter Karman  .  http://peknet.com/  .  peter at peknet.com