engine: current master fails to configure - libprov dir is empty

MacOS Big Sur 11.6, Xcode-13.0 (both factors irrelevant, IMHO).

+ LDFLAGS=
+ OPENSSL_DIR=/Users/uri/openssl-3
+ OPENSSL_ENGINES_DIR=/Users/uri/openssl-3/lib/engines-3
+ THREE=-3-
+ '[' -z clang ']'
+ '[' -z '' ']'
+ export OPENSSL_ROOT_DIR=/Users/uri/openssl-3
+ OPENSSL_ROOT_DIR=/Users/uri/openssl-3
+ '[' -z ']'
+ CMAKE_BUILD_TYPE=Release
+ OPENSSL_INCLUDE_DIR=/Users/uri/openssl-3/include
+ OPENSSL_CRYPTO_LIBRARY=/Users/uri/openssl-3/lib/libcrypto.dylib
+ OPENSSL_SSL_LIBRARY=/Users/uri/openssl-3/lib/libssl.dylib
+ PKG_CONFIG_PATH=/Users/uri/openssl-3/lib/pkgconfig:/opt/local/lib/pkgconfig:/opt/local/sha
re/pkgconfig:/usr/local/lib/pkgconfig:/usr/lib/pkgconfig
+ OPENSSL_CFLAGS='-march=native -std=gnu17'
+ OPENSSL_LIB_DIR=/Users/uri/openssl-3/lib
+ OPENSSL_CONF=/Users/uri/openssl-3/etc/openssl.cnf
+ rm -rf build
+ mkdir -p build
+ cd build
+ cmake .. -DCMAKE_C_COMPILER=clang -DCMAKE_BUILD_TYPE=Release -DCMAKE_VERBOSE_MAKEFILE:BOOL
=ON -DOPENSSL_ROOT_DIR=/Users/uri/openssl-3 -DOPENSSL_ENGINES_DIR=/Users/uri/openssl-3/lib/e
ngines-3
-- The C compiler identification is AppleClang 13.0.0.13000029
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /opt/local/bin/clang - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Found OpenSSL: /Users/uri/openssl-3/lib/libcrypto.dylib (found suitable version "3.1.0", minimum required is "3.0")  
-- Found OpenSSL ...
CMAKE_BUILD_TYPE = Release
-- OpenSSL version values were not properly defined (OpenSSL-3 issue), setting to 3.0
-- Found OpenSSL includes:   /Users/uri/openssl-3/include
-- Found OpenSSL crypto lib: /Users/uri/openssl-3/lib/libcrypto.dylib
-- Found OpenSSL application: 
-- Found OpenSSL application: /Users/uri/openssl-3/bin/openssl
-- Looking for clock_gettime
-- Looking for clock_gettime - found
-- Looking for clock_gettime in rt
-- Looking for clock_gettime in rt - not found
-- LITTLE_ENDIAN
-- Performing Test ADDCARRY_U64
-- Performing Test ADDCARRY_U64 - Success
-- Performing Test RELAXED_ALIGNMENT
-- Performing Test RELAXED_ALIGNMENT - Success
-- No Test2::V0 perl module (engine and provider tests skipped)
CMake Error at CMakeLists.txt:376 (add_subdirectory):
  The source directory

    /Users/uri/src/grasshopper-engine/libprov

  does not contain a CMakeLists.txt file.


INSTALL TARGETS - target lib_gost_engine has PUBLIC_HEADER files but no PUBLIC_HEADER DESTINATION.
-- Configuring incomplete, errors occurred!

See also "/Users/uri/src/grasshopper-engine/build/CMakeFiles/CMakeOutput.log".
See also "/Users/uri/src/grasshopper-engine/build/CMakeFiles/CMakeError.log".