[Buildroot] NDEBUG breaks compilation of GCC 10
Andreas Ziegler
br015 at umbiko.net
Mon Jun 14 09:22:23 UTC 2021
Dear all,
I seem to attract all the corner cases :-(
After the merge with the recent 'next' branch, compilation of GCC10
breaks in the gcc-final step.
musl/assert.h:
#ifdef NDEBUG
#define assert(x) (void)0
#else
#define assert(x) ((void)((x) || (__assert_fail(#x, __FILE__, __LINE__,
__func__),0)))
#endif
gcc/libgomp/target.c:
{
struct target_mem_desc *k_tgt = k->tgt;
bool is_tgt_unmapped = gomp_remove_var (devicep, k);
/* It would be bad if TGT got unmapped while we're still iterating
over its LIST_COUNT, and also expect to use it in the following
code. */
assert (!is_tgt_unmapped
|| k_tgt != tgt);
}
Build log:
../../../libgomp/target.c: In function ‘gomp_unmap_vars_internal’:
../../../libgomp/target.c:1474:9: error: unused variable
‘is_tgt_unmapped’ [-Werror=unused-variable]
1474 | bool is_tgt_unmapped = gomp_remove_var (devicep, k);
| ^~~~~~~~~~~~~~~
../../../libgomp/target.c:1473:28: error: unused variable ‘k_tgt’
[-Werror=unused-variable]
1473 | struct target_mem_desc *k_tgt = k->tgt;
| ^~~~~
Introducing -Wno-error=unused-variable seems to help, but maybe there is
a better solution?
Kind regards,
Andreas
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