Presence of cygwin64 elements in an existing Cygwin 32 install after updating

[Keith Christian <keith1christian@gmail.com>]

Some Cygwin programs are failing even after reboots, re-installing the
faulty program, and the customary automatic rebasing (e.g. 'dig', Line
1 below) after a recent update:

Some cygwin64 packages were installed (see line 17 below (even though
I am running *32* bit cygwin, installed using setup-*x86*.exe:

After the existing setup warned me that there was a newer one, I
downloaded this one before continuing with the update.

    08/23/2017  04:10 PM           871,955 setup-x86.exe

    9afd6a83bbb7dbb55805ab113e1e618e *setup-x86.exe

Lines 1 - 9: After the update I noticed that 'dig' wasn't working
properly (even after a reboot, and a reinstall of the bind-utils
package, and the automatic rebase invoked by 'setup'.)

Lines 12 - 17: cygcheck showed the following note about a missing (64
bit?) cygwin DLL.

Line 17 especially, why is there an 'x86_64' reference on a cygwin 32
bit install?

Lines 20 - 29 show a number of cygwin64 references, 108 to be exact on Line 29:

Line 33 is additional evidence that this is the 32 bit setup program:

Lines 36 - 44 show more info about the setup.ini file.


     1    dig +short -x 127.0.0.1
     2          0 [main] dig (4552) C:\cygwin\bin\dig.exe: *** fatal
error - cygheap base mismatch detected - 0x612E8408/0xBA8408.
     3    This problem is probably due to using incompatible versions
of the cygwin DLL.
     4    Search for cygwin1.dll using the Windows Start->Find/Search facility
     5    and delete all but the most recent version.  The most recent
version *should*
     6    reside in x:\cygwin\bin, where 'x' is the drive on which you have
     7    installed the cygwin distribution.  Rebooting is also suggested if you
     8    are unable to find another cygwin DLL.
     9    Segmentation fault
    10
    11
    12    grep "cygwin1\.dll"
/var/kchristian/cygcheck/cygcheck_s_r_v_20170823_165156
    13     3373k 2017/07/12 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
    14                      "cygwin1.dll" v0.0 ts=2017-07-12 09:53
    15     3373k 2017/07/12 C:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
    16                      "cygwin1.dll" v0.0 ts=2017-07-12 09:53
    17    Missing file:
/usr/x86_64-pc-cygwin/sys-root/usr/bin/cygwin1.dll from package
cygwin64
    18
    19
    20    grep -n cygwin64 /etc/setup/installed.db
    21    543:cygwin64 cygwin64-2.6.0-1.tar.bz2 1
    22    544:cygwin64-binutils cygwin64-binutils-2.25-1.tar.bz2 0
    23    545:cygwin64-binutils-debuginfo
cygwin64-binutils-debuginfo-2.25-1.tar.bz2 1
    24    546:cygwin64-bzip2 cygwin64-bzip2-1.0.6-2.tar.bz2 0
    25    547:cygwin64-catgets cygwin64-catgets-1.1-2.tar.bz2 1
    26
    27
    28    grep -cw cygwin64
"http%3a%2f%2fcygwin.mirror.constant.com%2f/x86/setup.ini"
    29    108
    30
    31
    32    ls -l "http%3a%2f%2fcygwin.mirror.constant.com%2f/x86/setup.ini"
    33    -rwx------+ 1 keith Domain Users 10666707 Aug 23 16:10
http%3a%2f%2fcygwin.mirror.constant.com%2f/x86/setup.ini
    34
    35
    36    head "http%3a%2f%2fcygwin.mirror.constant.com%2f/x86/setup.ini"
    37    # This file was automatically generated at 2017-08-22 00:14:06 UTC.
    38    #
    39    # If you edit it, your edits will be discarded next time the file is
    40    # generated.  See http://cygwin.com/setup.html for details.
    41    release: cygwin
    42    arch: x86
    43    setup-timestamp: 1503360846
    44    setup-version: 2.881


Interested in how to remove the cygwin64 components from this cygwin
32 bit system so that failing Cygwin programs work properly.

Thanks!

Keith

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