Fix build error if assert is defined in apriltag.c
@@ -55,6 +55,7 @@ either expressed or implied, of the Regents of The University of Michigan.
#define malloc(size) ({ void *_r = umm_malloc(size); if(!_r) umm_alloc_fail(); _r; })
#define realloc(ptr, size) ({ void *_r = umm_realloc((ptr), (size)); if(!_r) umm_alloc_fail(); _r; })
#define calloc(num, item_size) ({ void *_r = umm_calloc((num), (item_size)); if(!_r) umm_alloc_fail(); _r; })
+#undef assert
#define assert(expression)
#define sqrt(x) fast_sqrtf(x)
#define sqrtf(x) fast_sqrtf(x)
