Build process was successful (openssl-3.0.14) with no errors using the command:

./Configure
mingw32-make

Then I tried to install using the command:

./Configure --prefix="C:\openssl-3.0.14-install" --openssldir="C:\openssl-3.0.14-keystore"
mingw32-make install

Error output

install doc/man/man1/tsget.1 -> C:\openssl-3.0.14-install/share/man/man1/tsget.1ossl
/usr/bin/sh: -c: line 2: syntax error: unexpected end of file
mingw32-make: *** [Makefile:3711: install_man_docs] Error 2

perl configdata.pm --dump

Command line (with current working directory = .):

    perl ./Configure --prefix=C:\openssl-3.0.14-install --openssldir=C:\openssl-3.0.14-keystore

Perl information:

    perl
    5.38.2 for x86_64-msys-thread-multi

Enabled features:

    aria
    asm
    async
    atexit
    autoalginit
    autoerrinit
    autoload-config
    bf
    blake2
    bulk
    cached-fetch
    camellia
    capieng
    cast
    chacha
    cmac
    cmp
    cms
    comp
    ct
    deprecated
    des
    dgram
    dh
    dsa
    dso
    dtls
    dynamic-engine
    ec
    ec2m
    ecdh
    ecdsa
    engine
    err
    filenames
    gost
    idea
    legacy
    loadereng
    makedepend
    md4
    mdc2
    module
    multiblock
    nextprotoneg
    ocb
    ocsp
    padlockeng
    pic
    pinshared
    poly1305
    posix-io
    psk
    rc2
    rc4
    rdrand
    rfc3779
    rmd160
    scrypt
    secure-memory
    seed
    shared
    siphash
    siv
    sm2
    sm3
    sm4
    sock
    srp
    srtp
    sse2
    ssl
    ssl-trace
    static-engine
    stdio
    tests
    threads
    tls
    ts
    ui-console
    whirlpool
    tls1
    tls1-method
    tls1_1
    tls1_1-method
    tls1_2
    tls1_2-method
    tls1_3
    dtls1
    dtls1-method
    dtls1_2
    dtls1_2-method

Disabled features:

    acvp-tests          [cascade]        OPENSSL_NO_ACVP_TESTS
    afalgeng            [not-linux]      OPENSSL_NO_AFALGENG
    asan                [default]        OPENSSL_NO_ASAN
    buildtest-c++       [default]
    crypto-mdebug       [default]        OPENSSL_NO_CRYPTO_MDEBUG
    devcryptoeng        [default]        OPENSSL_NO_DEVCRYPTOENG
    ec_nistp_64_gcc_128 [default]        OPENSSL_NO_EC_NISTP_64_GCC_128
    egd                 [default]        OPENSSL_NO_EGD
    external-tests      [default]        OPENSSL_NO_EXTERNAL_TESTS
    fips                [default]
    fips-securitychecks [cascade]        OPENSSL_NO_FIPS_SECURITYCHECKS
    fuzz-afl            [default]        OPENSSL_NO_FUZZ_AFL
    fuzz-libfuzzer      [default]        OPENSSL_NO_FUZZ_LIBFUZZER
    ktls                [default]        OPENSSL_NO_KTLS
    md2                 [default]        OPENSSL_NO_MD2 (skip crypto/md2)
    msan                [default]        OPENSSL_NO_MSAN
    rc5                 [default]        OPENSSL_NO_RC5 (skip crypto/rc5)
    sctp                [default]        OPENSSL_NO_SCTP
    trace               [default]        OPENSSL_NO_TRACE
    ubsan               [default]        OPENSSL_NO_UBSAN
    unit-test           [default]        OPENSSL_NO_UNIT_TEST
    uplink              [no uplink_arch] OPENSSL_NO_UPLINK
    weak-ssl-ciphers    [default]        OPENSSL_NO_WEAK_SSL_CIPHERS
    zlib                [default]
    zlib-dynamic        [default]
    ssl3                [default]        OPENSSL_NO_SSL3
    ssl3-method         [default]        OPENSSL_NO_SSL3_METHOD

Config target attributes:

    AR => "ar",
    ARFLAGS => "qc",
    CC => "gcc",
    CFLAGS => "-Wall -O3",
    HASHBANGPERL => "/usr/bin/env perl",
    RANLIB => "ranlib",
    RC => "windres",
    asm_arch => "x86_64",
    bn_ops => "SIXTY_FOUR_BIT",
    build_file => "Makefile",
    build_scheme => [ "unified", "unix" ],
    cflags => "-m64",
    cppflags => "-DUNICODE -D_UNICODE -DWIN32_LEAN_AND_MEAN -D_MT",
    defines => [ "OPENSSL_BUILDING_OPENSSL" ],
    disable => [  ],
    dso_scheme => "win32",
    enable => [  ],
    ex_libs => "-lws2_32 -lgdi32 -lcrypt32",
    includes => [  ],
    lflags => "",
    lib_cflags => "",
    lib_cppflags => "-DL_ENDIAN",
    lib_defines => [  ],
    module_cflags => "",
    module_cxxflags => undef,
    module_ldflags => "-static-libgcc -shared -Wl,--enable-auto-image-base",
    multilib => "64",
    perl_platform => "mingw",
    perlasm_scheme => "mingw64",
    shared_argfileflag => "\@",
    shared_cflag => "",
    shared_cppflags => "_WINDLL",
    shared_defflag => "",
    shared_defines => [  ],
    shared_impflag => "-Wl,--out-implib=",
    shared_ldflag => "-static-libgcc -shared -Wl,--enable-auto-image-base",
    shared_rcflag => "--target=pe-x86-64",
    shared_target => "mingw-shared",
    sys_id => "MINGW64",
    thread_defines => [  ],
    thread_scheme => "winthreads",
    unistd => "<unistd.h>",

Recorded environment:

    AR =
    ARFLAGS =
    AS =
    ASFLAGS =
    BUILDFILE =
    CC =
    CFLAGS =
    CPP =
    CPPDEFINES =
    CPPFLAGS =
    CPPINCLUDES =
    CROSS_COMPILE =
    CXX =
    CXXFLAGS =
    HASHBANGPERL =
    LD =
    LDFLAGS =
    LDLIBS =
    MT =
    MTFLAGS =
    OPENSSL_LOCAL_CONFIG_DIR =
    PERL =
    RANLIB =
    RC =
    RCFLAGS =
    RM =
    WINDRES =
    __CNF_CFLAGS =
    __CNF_CPPDEFINES =
    __CNF_CPPFLAGS =
    __CNF_CPPINCLUDES =
    __CNF_CXXFLAGS =
    __CNF_LDFLAGS =
    __CNF_LDLIBS =

Makevars:

    AR              = ar
    ARFLAGS         = qc
    CC              = gcc
    CFLAGS          = -Wall -O3
    CPPDEFINES      =
    CPPFLAGS        =
    CPPINCLUDES     =
    CXXFLAGS        =
    HASHBANGPERL    = /usr/bin/env perl
    LDFLAGS         =
    LDLIBS          =
    PERL            = perl
    RANLIB          = ranlib
    RC              = windres
    RCFLAGS         =

NOTE: These variables only represent the configuration view.  The build file
template may have processed these variables further, please have a look at the
build file for more exact data:
    Makefile

build file:

    Makefile

build file templates:

    Configurations/common0.tmpl
    Configurations/unix-Makefile.tmpl