g++ fails in cc1plus due to path
Chris J. Breisch
chris.ml@breisch.org
Tue May 20 19:18:00 GMT 2014
Cook, Henry wrote:
> I'm running 32 bit Cygwin on a 64 bit machine to build 32 bit binaries.
> Trying to build a simple program fails due to a pathing issue related
> to g++/cc1plus. I've tried several Cygwin re-installs, so that is not
> the issue. Calling "g++ foo.cpp" just hangs and never terminates.
> The program is a simple: int main(){return 0;}.
1) I'm going to beat everyone else to the punch and suggest you go here:
https://cygwin.com/problems.html
In particular, a cygcheck output looks like it might be useful.
2) Can you please convince your mail program to put in a line break
occasionally?
3) I think I disagree with you that your install is not the issue, since
your test program compiles and runs perfectly for me.
I did change the return value to 5 for testing purposes.
$ cat > foo.cpp << EOF
> int main() { return 5; }
> EOF
$ g++ foo.cpp
$ ./a.exe
$ echo $?
5
>
> I get the following from strace. This shows that the initialization path
> is \??\C:\Windows instead of \??\C:\cygwin. I don't know where this
is coming from.
>
> 0 0 [main] cc1plus (9284) **********************************************
> 192 192 [main] cc1plus (9284) Program name: C:\cygwin\lib\gcc\i686-pc-cygwin\4.8.2\cc1plus.exe (windows pid 9284)
> 45 237 [main] cc1plus (9284) OS version: Windows NT-6.1
> 53 290 [main] cc1plus (9284) **********************************************
I don't see any initialization path stuff in my strace. I suspect you
have an old cygwin1.dll somewhere, and running cygcheck as described on
the "Reporting Problems" page linked above will likely point that out.
Are you running cc1plus directly?
--
Chris J. Breisch
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