Test Summary Report
-------------------
t/08warndie.t                      (Wstat: 1280 (exited 5) Tests: 1 Failed: 0)
  Non-zero exit status: 5
  Parse errors: Bad plan.  You planned 21 tests but ran 1.
Files=15, Tests=43,  2 wallclock secs ( 0.05 usr +  0.00 sys =  0.05 CPU)
Result: FAIL
Failed 1/15 test programs. 0/43 subtests failed.
make: *** [makefile:886: test_dynamic] Error 255

    while( defined ( $_ = <$childh> ) ) { # Crashes here
        $s .= $_;
    }

Summary of my perl5 (revision 5 version 41 subversion 3) configuration:
  Platform:
    osname=MSWin32
    osvers=10.0.22631.4037
    archname=MSWin32-x64-multi-thread
    uname=''
    config_args='undef'
    hint=recommended
    useposix=true
    d_sigaction=undef
    useithreads=define
    usemultiplicity=define
    use64bitint=define
    use64bitall=undef
    uselongdouble=undef
    usemymalloc=n
    default_inc_excludes_dot=define
  Compiler:
    cc='gcc'
    ccflags ='-std=c99 -DWIN32 -DWIN64 -fdiagnostics-color=never -DPERL_TEXTMODE_SCRIPTS -DMULTIPLICITY -DPERL_IMPLICIT_SYS -DUSE_PERLIO -D__USE_MINGW_ANSI_STDIO -fwrapv -fno-strict-aliasing -mms-bitfields'
    optimize='-Os -falign-functions -falign-jumps -falign-labels -falign-loops -freorder-blocks -freorder-blocks-algorithm=stc -freorder-blocks-and-partition'
    cppflags='-DWIN32'
    ccversion=''
    gccversion='14.2.0'
    gccosandvers=''
    intsize=4
    longsize=4
    ptrsize=8
    doublesize=8
    byteorder=12345678
    doublekind=3
    d_longlong=define
    longlongsize=8
    d_longdbl=define
    longdblsize=16
    longdblkind=3
    ivtype='long long'
    ivsize=8
    nvtype='double'
    nvsize=8
    Off_t='long long'
    lseeksize=8
    alignbytes=8
    prototype=define
  Linker and Libraries:
    ld='g++'
    ldflags ='-s -L"D:\perl-5.41.3-1420-ucrt-mcf\lib\MSWin32-x64-multi-thread\CORE" -L"C:\winlibs-ucrt-1420\mingw64\lib" -L"C:\winlibs-ucrt-1420\mingw64\x86_64-w64-mingw32\lib" -L"C:\winlibs-ucrt-1420\mingw64\lib\gcc\x86_64-w64-mingw32\14.2.0"'
    libpth=C:\winlibs-ucrt-1420\mingw64\lib C:\winlibs-ucrt-1420\mingw64\x86_64-w64-mingw32\lib C:\winlibs-ucrt-1420\mingw64\lib\gcc\x86_64-w64-mingw32\14.2.0 D:\_64\msys_1420\1.0\local\lib
    libs= -lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm -lversion -lodbc32 -lodbccp32 -lcomctl32
    perllibs= -lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool -lcomdlg32 -ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr -lwinmm -lversion -lodbc32 -lodbccp32 -lcomctl32
    libc=-lucrt
    so=dll
    useshrplib=true
    libperl=libperl541.a
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_win32.xs
    dlext=dll
    d_dlsymun=undef
    ccdlflags=' '
    cccdlflags=' '
    lddlflags='-shared -s -L"D:\perl-5.41.3-1420-ucrt-mcf\lib\MSWin32-x64-multi-thread\CORE" -L"C:\winlibs-ucrt-1420\mingw64\lib" -L"C:\winlibs-ucrt-1420\mingw64\x86_64-w64-mingw32\lib" -L"C:\winlibs-ucrt-1420\mingw64\lib\gcc\x86_64-w64-mingw32\14.2.0"'
Characteristics of this binary (from libperl):
  Compile-time options:
    HAS_LONG_DOUBLE
    HAS_TIMES
    HAVE_INTERP_INTERN
    MULTIPLICITY
    PERLIO_LAYERS
    PERL_COPY_ON_WRITE
    PERL_DONT_CREATE_GVSV
    PERL_HASH_FUNC_SIPHASH13
    PERL_HASH_USE_SBOX32
    PERL_IMPLICIT_SYS
    PERL_MALLOC_WRAP
    PERL_OP_PARENT
    PERL_PRESERVE_IVUV
    PERL_USE_SAFE_PUTENV
    USE_64_BIT_INT
    USE_ITHREADS
    USE_LARGE_FILES
    USE_LOCALE
    USE_LOCALE_COLLATE
    USE_LOCALE_CTYPE
    USE_LOCALE_NUMERIC
    USE_LOCALE_TIME
    USE_PERLIO
    USE_PERL_ATOF
    USE_THREAD_SAFE_LOCALE
  Built under MSWin32
  Compiled at Aug 30 2024 10:58:33
  @INC:
    D:/perl-5.41.3-1420-ucrt-mcf/site/lib/MSWin32-x64-multi-thread
    D:/perl-5.41.3-1420-ucrt-mcf/site/lib
    D:/perl-5.41.3-1420-ucrt-mcf/lib/MSWin32-x64-multi-thread
    D:/perl-5.41.3-1420-ucrt-mcf/lib