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Re: difficulty with c++ boost::thread (1.53.0) on Cygwin 1.7.20(0.266/5/3)
- From: marco atzeri <marco dot atzeri at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Sun, 30 Jun 2013 07:58:51 +0200
- Subject: Re: difficulty with c++ boost::thread (1.53.0) on Cygwin 1.7.20(0.266/5/3)
- References: <fee89236a34f4d82ab3607bf14531e88 at star-mountain dot com>
Il 6/30/2013 12:00 AM, Lewis Sternberg ha scritto:
first off, I'm getting "cygcheck: Wrong architecture. Only ix86
executables supported." when running cygcheck.
That said, ...
The attached multithread.cpp ought to run as far as I can tell from
Cygwin, Boost, & the web.
(There is a posting from 2010 regarding problems with building
boost::thread on Cygwin, but I'm able to build, and anyway, the Cygwin
package already includes an up-to-date version of boost::thread.
If I try to compile the attached code thus:
$ g++ -D THREADED multithread.cpp
no libraries link instruction, so of course "undefined reference"
/tmp/ccpBRr49.o:multithread.cpp:(.text+0x259): undefined reference to
/tmp/ccpBRr49.o:multithread.cpp:(.text+0x263): undefined reference to
/tmp/ccpBRr49.o:multithread.cpp:(.text+0x26d): undefined reference to
/tmp/ccpBRr49.o: bad reloc address 0xb in
collect2: ld returned 1 exit status
If I add the option to load libbost_system (as suggested by some threads
on the web):
$ g++ -D THREADED -llibboost_system multithread.cpp
on MS the linking order is important...
$ g++ -D THREADED multithread.cpp -l boost_system-mt -l boost_thread-mt
0, 0, 0, 0
0, 3.93049e-06, 0, 0
thank you for your attention and (hopefully) help,
Problem reports: http://cygwin.com/problems.html
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