[Bug 49191] armv7l build broken: dlls/ntdll expression too complex

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=49191

--- Comment #3 from Austin English <austinenglish at gmail.com> ---
Yeah, failing device is a raspberry pi 2b:
pi at raspberrypi:~ $ cat /proc/cpuinfo 
processor    : 0
model name    : ARMv7 Processor rev 5 (v7l)
BogoMIPS    : 57.60
Features    : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt
vfpd32 lpae evtstrm 
CPU implementer    : 0x41
CPU architecture: 7
CPU variant    : 0x0
CPU part    : 0xc07
CPU revision    : 5
...
Hardware    : BCM2835
Revision    : a21041
Serial        : 00000000a4ec119c
Model        : Raspberry Pi 2 Model B Rev 1.1

pi at raspberrypi:~ $ gcc -march=armv6 -dM -E - < /dev/null  | grep
__GCC_HAVE_SYNC_COMPARE_AND_SWAP
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1

pi at raspberrypi:~ $ gcc -march=armv6k -dM -E - < /dev/null  | grep
__GCC_HAVE_SYNC_COMPARE_AND_SWAP
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1

working device is a chromebook c201p, using PrawnOS (debian buster with no
non-free components).  gcc -v shows `--with-arch=armv7-a`.

I take it the solution is to build a custom gcc/clang with a different default
arch? And to have a configure check to enforce that?

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