Build for Android fails on Linux

[RankoR]

I'm trying to build 2.3.6 for Android with NDK r27 (also tried with r25, same result).

When using the script (pwsh ./scripts/build.ps1 -Config Release -Platform android -Arch x64) it fails to build OpenSSL. Not sure about the exact problem as the build log is a mess, but I guess it's the same reason as with a "pure" CMake build.

I've also tried to build it with CMake like this:

export ANDROID_NDK_LATEST_HOME=$ANDROID_NDK
cd build

cmake -G"Ninja" \
  -DCMAKE_TOOLCHAIN_FILE="$ANDROID_NDK_LATEST_HOME/build/cmake/android.toolchain.cmake" \
  -DANDROID_ABI=x86_64 \
  -DANDROID_PLATFORM=android-29 \
  -DANDROID_NDK="$ANDROID_NDK_LATEST_HOME" \
  -DCMAKE_BUILD_TYPE=Release \
  -DQUIC_BUILD_PLATFORM=android \
  -DQUIC_TLS=openssl3 \
  -DQUIC_ENABLE_LOGGING=OFF \
  ..

ninja

The failure:

/src/misc/misc/3rd-party/msquic/src/core/packet_builder.h:156:5: error: encoding prefix 'L' on an unevaluated string literal has no effect [-Werror,-Winvalid-unevaluated-string]
  156 |     L"Packet builder should be small enough to fit on the stack.");
      |     ^
/src/misc/misc/3rd-party/msquic/src/inc/quic_platform_posix.h:265:52: note: expanded from macro 'CXPLAT_STATIC_ASSERT'
  265 | #define CXPLAT_STATIC_ASSERT(X,Y) static_assert(X, Y);
      |                                                    ^
/src/misc/misc/3rd-party/msquic/src/core/mtu_discovery.c:37:71: error: encoding prefix 'L' on an unevaluated string literal has no effect [-Werror,-Winvalid-unevaluated-string]
   37 | CXPLAT_STATIC_ASSERT(CXPLAT_MAX_MTU >= QUIC_DPLPMTUD_DEFAULT_MAX_MTU, L"Default max must not be more than max");
      |                                                                       ^

...

[34/63] OpenSSL configure
FAILED: _deps/opensslquic-build/submodules/openssl3/Makefile /src/misc/misc/3rd-party/msquic/build/_deps/opensslquic-build/submodules/openssl3/Makefile 
cd /src/misc/misc/3rd-party/msquic/build/_deps/opensslquic-build/submodules/openssl3 && SYSTEM=Linux /src/misc/misc/3rd-party/msquic/submodules/openssl3/Configure android-x86_64 -D__ANDROID_API__=29 enable-tls1_3 no-makedepend no-dgram no-ssl3 no-psk no-srp no-zlib no-egd no-idea no-rc5 no-rc4 no-afalgeng no-comp no-cms no-ct no-srp no-srtp no-ts no-gost no-dso no-ec2m no-tls1 no-tls1_1 no-tls1_2 no-dtls no-dtls1 no-dtls1_2 no-ssl no-ssl3-method no-tls1-method no-tls1_1-method no-tls1_2-method no-dtls1-method no-dtls1_2-method no-siphash no-whirlpool no-aria no-bf no-blake2 no-sm2 no-sm3 no-sm4 no-camellia no-cast no-md4 no-mdc2 no-ocb no-rc2 no-rmd160 no-scrypt no-seed no-weak-ssl-ciphers no-shared no-tests no-uplink no-cmp no-fips no-padlockeng no-siv no-legacy no-dtls no-deprecated --libdir=lib --openssldir="/etc/ssl" --prefix=/src/misc/misc/3rd-party/msquic/build/_deps/opensslquic-build/openssl3

Failure!  build file wasn't produced.
Please read INSTALL.md and associated NOTES-* files.  You may also have to
look over your available compiler tool chain or change your configuration.

no NDK x86_64-linux-android-gcc on $PATH at (eval 10) line 142.
Configuring OpenSSL version 3.1.4+quic for target android-x86_64
Using os-specific seed configuration
ninja: build stopped: subcommand failed.

It looks like OpenSSL tries to compile with gcc, but there is no gcc in NDK, NDK is shipped with clang.

NDK installation itself is correct, I'm able to build many other libs (protobuf, lsquic, etc) without any problem.

How to fix it?