Re: Issues w/ cross-compiling

[Eric Blake]

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According to Ralf Wildenhues on 7/8/2008 2:57 PM:
| This is odd.  I can confirm it though: bcc ("Bruce’s C compiler")
| doesn't throw a compile error for
|
| static int test_array [1 - 2 * !(((long int) (sizeof (int))) <= 1)];
| test_array[0] = 0;

|
| I do get a compile error with
|
| int
| main ()
| {
| static int test_array [1 - 2 * !(((long int) (sizeof (int))) <= 1)];
| return sizeof test_array;
|

|
| so I'm wondering whether we should change the test.  Changing
| AC_LANG_BOOL_COMPILE_TRY(C) in a way so that it doesn't ever
| warn (thus getting _AC_COMPUTE_INT_COMPILE to silently return
| bogus results), isn't completely trivial, though
| (unreachable code vs. code that is optimized away).

What about a combination of approaches?

static int test_array [1 - 2 * !(((long int) (sizeof (int))) <= 1)];
return sizeof test_array - (test_array[0] = 0);

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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