06-30-2019
That looks like a library mismatch. You have proves your install is correct.
cygwin is installed by going to one of the cygwin mirror sites, downloading the installer and running it.
It shows what is installed. Try to update gcc. You may have updated some outside package which overwrote something you need. Try adding libgmp which will not hurt anything, but will check libraries it needs.
When you installed gcc or cygwin did you play around a lot with selecting things, cygwin sometimes breaks when you install oddball stuff. perl update once broke my gcc. perl is not oddball, really. But it is not part of the default install.
What I'm saying: this is hard to do sometimes. Cygwin has a listserv that you can search for known problems and fixes. Google for cygwin problems use the exact library name, too. It looks like you have already hit google and asked questions elsewhere. Expand the search.
Last edited by jim mcnamara; 06-30-2019 at 11:35 PM..
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LEARN ABOUT DEBIAN
cxref-cpp
cxref-cpp(1) General Commands Manual cxref-cpp(1)
NAME
cxref-cpp - A modified C preprocessor to use with cxref.
SYNOPSIS
cxref-cpp ...
DESCRIPTION
To improve the output that is available for the source code for cross-referencing a modified version of the GNU CPP v2.7.2 is supplied
(named cxref-cpp).
This modified C preprocessor allows for a finer control over some features of the preprocessing that are not important for a compiler. In
a standard preprocessor, the preprocessor directives are intended for use only by the preprocessor, so passing the information through is
not important.
With cxref-cpp, there are some features that are different to the standard GNU CPP:
Compared to gcc versions earlier than version 2.8.0 there is an extra option that will output the #include lines from the source
file. In version 2.8.0 and later this option is present.
Comments trailing a #include or a #define are not preserved by all versions of gcc even if the -C option is used. This is not
important while compiling, but is useful for documenting.
The cxref-cpp program will take on the personality of the installed version of gcc so that the gcc header files can be parsed. This
means that it includes the same default include directory paths and macro definitions. The file that contains these definitions is
called cxref-cpp.defines and is installed by the cxref-cpp-configure program or specified by the -cxref-cpp-defines command line
option.
OPTIONS
The same as for gcc, apart from '-cxref-cpp-defines' described above.
SEE ALSO
cxref(1), cxref-cpp-configure(1), gcc(1)
May 9, 2004 cxref-cpp(1)