On 11/17/2020 6:48 PM, Norton Allen wrote:
On 11/17/2020 6:21 PM, Norton Allen wrote:
On 11/17/2020 5:48 PM, Mark Geisert wrote:
Norton Allen wrote:
Is anyone else seeing this? Any suggestions?
I'm not seeing it. 'cmake --help' works for me.
Does 'ldd /usr/bin/cmake' give any hint?
ldd did not complain, but your question reminded me that I should try
running under strace. That produce the complaint:
The procedure entry point
_ZNSt19basic_ostringstreamlcSt11char_traitslcESalcEEC1Ev could not
be located in the dynamic link library C:\cygwin64\bin\cmake.exe
(I had to type that in, as I could not copy from strace's error dialog.)
That looks like it might be an issue with the g++ library? Any chance
there was a change in the library that might require a recompile/relink?
I will try rolling that one back.
Rolling back to gcc-g++ 9.3.0 did not help.
I did find that entry point string in cmake.exe (all the lowercase
'L's I typed in that are actually capital i's. My font makes no
distinction) and I was able to locate a matching string in
/lib/gcc/x86_64-pc-cygwin/9.3.0/libstdc++.a, but not in
libstdc++.dll.a. Running strings on the /usr/bin/cygstdc++-6.dll
showed the same information. Maybe I need to roll back further!
This seems to be the crux of it. That entry point is simply not in the
g++ shared library. I have not figured out why this cropped up today,
since it is not present in the current (10.2.0-1) or previous (9.3.0-2)
versions. I will trying going back to 7.4.0.1, but it's hard to imagine
it's been gone so long and I haven't seen the problem before today.
nort@easwhlpt3425080 /usr/bin
$ strings cygstdc++-6.dll | grep
_ZNSt19basic_ostringstreamIcSt11char_traits
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEE3strERKSs
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEE4swapERS3_
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEC1EOS3_
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEC1ERKSsSt13_Ios_Openmode
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEC1ESt13_Ios_Openmode
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEC2EOS3_
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEC2ERKSsSt13_Ios_Openmode
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEC2ESt13_Ios_Openmode
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEED0Ev
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEED2Ev
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEaSEOS3_
nort@easwhlpt3425080 /usr/bin
$ strings cmake.exe | grep _ZNSt19basic_ostringstreamIcSt11char_traits
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEEC1Ev
_ZNSt19basic_ostringstreamIcSt11char_traitsIcESaIcEED1Ev
Does this seem like a problem that is likely to be resolved by
rebuilding cmake?
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