libressl-cmake.sh: disable ASM for Windows ARM64

Turned out that the official Windows ARM64 curl.exe exited with an
assert when run with a simple command like: `curl https://example.org`.
```
Assertion failed: (i == BN_BITS2) || (h <= (BN_ULONG)1 << i), file \crypto\bn\bn_div.c, line 96
```
Ref: libressl/portable#987
This issue was masked at build time, because `NDEBUG` is force-disable
in CMake builds. PR to fix that (or at least allow to set NDEBUG manually:
libressl/portable#988

When building with `NDEBUG`, there are is a list of compiler warnings:
```
In file included from libressl/crypto/bn/bn_add.c:65:
libressl/crypto/bn/arch/aarch64/bn_arch.h:35:16: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
   35 |             : [n]"=r"(n)
      |                       ^
libressl/crypto/bn/arch/aarch64/bn_arch.h:34:18: note: use constraint modifier "w"
   34 |         __asm__ ("clz   %[n], %[w]"
      |                         ^~~~
      |                         %w[n]
libressl/crypto/bn/arch/aarch64/bn_arch.h:36:15: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
   36 |             : [w]"r"(w));
      |                      ^
libressl/crypto/bn/arch/aarch64/bn_arch.h:34:24: note: use constraint modifier "w"
   34 |         __asm__ ("clz   %[n], %[w]"
      |                               ^~~~
      |                               %w[w]
libressl/crypto/bn/arch/aarch64/bn_arch.h:51:37: warning: value size does not match register size specified by the constraint and modifier [-Wasm-operand-widths]
   51 |             : [carry]"=r"(carry), [r0]"=r"(r0)
      |                                            ^
[...]
```

Such builds will hang with the same command instead of showing the
assert, meaning that ASM support is clearly not ready for Windows
ARM64, but this issue was masked by the NDEBUG build issue.

autotools builds have ASM disabled by default for this build case.

Author: vszakats

_versions.sh

@@ -10,7 +10,7 @@ export CURL_HASH=42ab8db9e20d8290a3b633e7fbb3cec15db34df65fd1015ef8ac1e4723750ee
 # Create revision string
 # NOTE: Set _REV to 1 after bumping CURL_VER_, then increment for each
 #       CI rebuild via `main` branch push (e.g. after bumping a dependency).
-export _REV="${CW_REVISION:-3}"
+export _REV="${CW_REVISION:-4}"
 
 export TRURL_VER_='0.9'
 export TRURL_HASH=848da38c0ea07cd96d6adac4a5e5e141fe26e5bd846039aa350c3ca589a948e0

libressl-cmake.sh

@@ -25,6 +25,13 @@ _VER="$1"
     CPPFLAGS+=' -DNDEBUG'
   fi
 
+  # LibreSSL (as of v3.8.2) hangs with ASM enabled on Windows ARM64.
+  # It also results in long list of ASM warnings when -DNDEBUG is set.
+  # This is hidden by CMake which force-unsets -DNDEBUG.
+  if [ "${_OS}" = 'win' ] && [ "${_CPU}" = 'a64' ]; then
+    options+=' -DENABLE_ASM=OFF'
+  fi
+
   if [ "${_CC}" = 'llvm' ]; then
     CFLAGS+=' -Wa,--noexecstack'
   else

libressl-pkg.sh

@@ -4,7 +4,7 @@
 # SPDX-License-Identifier: MIT
 
 # Caveats (as of 3.8.2):
-# - ARM64 Windows builds exit with an assert.
+# - ARM64 Windows builds exit with an assert and hang with asserts disabled.
 #   https://github.com/libressl/portable/issues/987
 # - CMake builds override -NDEBUG and do not allow building with this option.
 # - ASM support only for x64.