[rt.cpan.org #80217] Build failure under Cygwin on Windows

Wed Oct 17 14:51:46 2012: Request 80217 was acted upon.
Transaction: Correspondence added by BULKDD
       Queue: Win32-API
     Subject: Build failure under Cygwin on Windows
   Broken in: 0.72
    Severity: Critical
       Owner: Nobody
  Requestors: [email protected]
      Status: open
 Ticket <URL: https://rt.cpan.org/Ticket/Display.html?id=80217 >


the alloca was linked from /lib/gcc/i686-pc-cygwin/4.5.3/libgcc.a .
Looking at libgcc.a's disassembly it was identical to what I saw in API.dll.

for the record cygwin gcc -S output

.globl _XS_Win32__API_Call
	.def	_XS_Win32__API_Call;	.scl	2;	.type	32;	.endef
_XS_Win32__API_Call:
LFB32:
	.loc 1 726 0
LVL373:
	pushl	%ebp
LCFI161:
	movl	%esp, %ebp
LCFI162:
	pushl	%edi
LCFI163:
	pushl	%esi
LCFI164:
	pushl	%ebx
LCFI165:
	subl	$204, %esp
LCFI166:
	.loc 1 726 0
	movl	8(%ebp), %ebx
	.loc 1 728 0
	movl	72(%ebx), %eax
	movl	(%ebx), %edx
LVL374:
	movl	(%eax), %edi
LVL375:
	subl	$4, %eax
	movl	%eax, 72(%ebx)
	movl	12(%ebx), %eax
LVL376:
	movl	%edx, %esi
	leal	(%eax,%edi,4), %ecx
LVL377:
	subl	%ecx, %esi
	sarl	$2, %esi
LVL378:
	.loc 1 732 0
	testl	%esi, %esi
	jle	L331
LVL379:
	.loc 1 728 0
	leal	1(%edi), %ecx
LVL380:
	movl	%ecx, -108(%ebp)
LBB161:
	.loc 1 737 0
	movl	(%eax,%ecx,4), %eax
	movl	%eax, -84(%ebp)
LVL381:
	.loc 1 739 0
	movl	16(%ebx), %eax
LVL382:
	subl	%edx, %eax
	cmpl	$11, %eax
	jle	L332
LVL383:
L192:
LBB163:
	.loc 1 765 0
	movl	-84(%ebp), %eax
	movl	$LC45, 8(%esp)
	movl	%ebx, (%esp)
	movl	%eax, 4(%esp)
	call	_Perl_sv_isa
	.loc 1 767 0
	movl	$0, 8(%esp)
	movl	$LC46, 4(%esp)
	movl	%ebx, (%esp)
	.loc 1 765 0
	movl	%eax, -92(%ebp)
LVL384:
	.loc 1 767 0
	call	_Perl_get_sv
	.loc 1 768 0
	movl	-84(%ebp), %edx
	movl	16(%edx), %edx
LBB270:
	.loc 1 770 0
	movl	$0, 24(%esp)
LBE270:
	.loc 1 767 0
	movl	%eax, -80(%ebp)
LVL385:
LBB269:
	.loc 1 770 0
	movl	$0, 20(%esp)
LBE269:
	.loc 1 768 0
	movl	%edx, -76(%ebp)
LVL386:
LBB268:
	.loc 1 770 0
	movl	$32, 16(%esp)
	movl	$7, 12(%esp)
	movl	$LC47, 8(%esp)
	movl	%edx, 4(%esp)
	movl	%ebx, (%esp)
	call	_Perl_hv_common_key_len
LVL387:
	.loc 1 772 0
	movb	$0, -109(%ebp)
	.loc 1 771 0
	testl	%eax, %eax
	je	L193
	.loc 1 771 0 is_stmt 0 discriminator 1
	movl	(%eax), %eax
LVL388:
	movl	%ebx, (%esp)
	movl	%eax, 4(%esp)
	call	_Perl_sv_true
	testl	%eax, %eax
	setne	-109(%ebp)
L193:
LVL389:
LBE268:
	.loc 1 774 0 is_stmt 1
	movl	-76(%ebp), %ecx
	movl	$0, 24(%esp)
	movl	$0, 20(%esp)
	movl	$32, 16(%esp)
	movl	$5, 12(%esp)
	movl	$LC48, 8(%esp)
	movl	%ecx, 4(%esp)
	movl	%ebx, (%esp)
	call	_Perl_hv_common_key_len
LVL390:
	.loc 1 775 0
	movb	$0, -101(%ebp)
	.loc 1 764 0
	movb	$0, -93(%ebp)
	.loc 1 775 0
	testl	%eax, %eax
	je	L194
	.loc 1 775 0 is_stmt 0 discriminator 1
	movl	(%eax), %eax
LVL391:
	testb	$1, 9(%eax)
	je	L195
	movl	(%eax), %eax
	movb	$0, -101(%ebp)
	.loc 1 764 0 is_stmt 1 discriminator 1
	movb	$0, -93(%ebp)
	.loc 1 775 0 discriminator 1
	movl	16(%eax), %edx
	orl	20(%eax), %edx
	setne	%al
	testb	%al, %al
	jne	L333
LVL392:
L194:
	.loc 1 782 0
	movl	-76(%ebp), %edx
	.loc 1 786 0
	subl	$1, %esi
LVL393:
	.loc 1 782 0
	movl	$0, 24(%esp)
	movl	$0, 20(%esp)
	movl	$32, 16(%esp)
	movl	%edx, 4(%esp)
	movl	$2, 12(%esp)
	movl	$LC23, 8(%esp)
	movl	%ebx, (%esp)
	call	_Perl_hv_common_key_len
LVL394:
	.loc 1 783 0
	movl	(%eax), %eax
LVL395:
	movl	16(%eax), %eax
	.loc 1 784 0
	movl	%ebx, (%esp)
	.loc 1 783 0
	movl	%eax, -64(%ebp)
LVL396:
	.loc 1 784 0
	movl	%eax, 4(%esp)
	call	_Perl_av_len
LVL397:
	movl	%eax, -60(%ebp)
LVL398:
	.loc 1 786 0
	addl	$1, %eax
LVL399:
	cmpl	%eax, %esi
	movl	%eax, -88(%ebp)
	jne	L334
	.loc 1 790 0
	movl	-60(%ebp), %ecx
	testl	%ecx, %ecx
	js	L198
LBB212:
	.loc 1 798 0
	call	_DebugBreak@0
	.loc 1 799 0
	movl	-88(%ebp), %eax
	.loc 1 802 0
	leal	8(,%edi,4), %edi
	.loc 1 799 0
	sall	$4, %eax
	movl	%eax, (%esp)
	call	__alloca
	.loc 1 802 0
	movl	-88(%ebp), %edx
	.loc 1 799 0
	movl	%eax, -48(%ebp)
LVL400:
	.loc 1 802 0
	leal	0(,%edx,4), %eax
LVL401:
	movl	%eax, (%esp)
	call	__alloca
	movl	-48(%ebp), %esi