Perl_croak_nocontext rather than Perl_croak.
p4raw-id: //depot/perl@26545
#ifndef assert /* <assert.h> might have been included somehow */
#define assert(what) PERL_DEB( \
((what) ? ((void) 0) : \
- (Perl_croak(aTHX_ "Assertion %s failed: file \"" __FILE__ \
+ (Perl_croak_nocontext("Assertion %s failed: file \"" __FILE__ \
"\", line %d", STRINGIFY(what), __LINE__), \
PerlProc_exit(1), \
(void) 0)))