Aha! That solved it. It finally built a libzmq.dll with the correct FD_SETSIZE.
Now my question is why the top-level Makefile doesn’t work. At minimum it should know that it’s on a mingw32 platform and then invoke that child Makefile to build things correctly. Makefiles are an arcane art beyond my ken… On Feb 17, 2014, at 9:12 PM, KIU Shueng Chuan <[email protected]> wrote: > Oops. Should have been "mingw32-make -f Makefile.mingw32" > > On 18 Feb 2014 11:04, "Charles Remes" <[email protected]> wrote: > I am using an msys shell to do the compilation directly on Windows (no > cross-compiling). I just tried to run “mingw32-make Makefile.mingw32” from > the proper directory but it just said “Nothing to be done for > Makefile.mingw32” and exited. > > I wish I could figure out the secret incantation to get my FD_SETSIZE > override to work. Better yet, it would be useful if the generated Makefile > automatically set it to that value when run in a mingw32 build host. > > > On Feb 17, 2014, at 5:42 PM, KIU Shueng Chuan <[email protected]> wrote: > >> Looking at the ctx.cpp source, setting of MAX_SOCKETS goes through >> clipped_maxsocket() which clips it to "max_fds()-1", where max_fds() is >> equal to FD_SETSIZE as returned by zmq::select_t::max_fds(). So your issue >> does appear to be related to FD_SETSIZE. >> >> >> >> I tried it out again on zeromq4-x 571c668fa2e0b101f607b4c4a34c30da2f174499. >> >> Cross-compile on Linux using MinGW32: >> > CPPFLAGS=-DFD_SETSIZE=1024 ./configure --host=i686-pc-mingw32 >> >> > grep CPPFLAGS Makefile >> CPPFLAGS = -pedantic -Werror -Wall -Wno-long-long -D_REENTRANT >> -D_THREAD_SAFE -DFD_SETSIZE=1024 -DZMQ_FORCE_SELECT >> >> Adding the following snippet in one of the source files shows that it does >> get picked up. >> #if FD_SETSIZE!=1024 >> #error "FD_SETSIZE wrong" >> #endif >> >> >> >> If you are compiling directly on Windows and do not want to install MSYS >> (using MSYS may yield other quirks!), an alternative to using configure is >> to go to the subdir builds/mingw32. >> There is a simple Makefile.mingw32 there. >> Just run "mingw32-make Makefile.mingw32" >> Haven't tried this for some time and it is supposed to be automatically >> generated nowadays. >> >> >> >> On Tue, Feb 18, 2014 at 12:27 AM, Charles Remes <[email protected]> wrote: >> I’ve tried a few different ways of providing FD_SETSIZE but nothing has >> worked for me so far. >> >> I have tried: >> >> * CFLAGS=-DFD_SETSIZE=1024 ./configure >> >> * CPPFLAGS=-DFD_SETSIZE=1024 ./configure >> >> Neither one is picked up properly by the system. What else should I try? >> >> On Feb 14, 2014, at 5:56 PM, KIU Shueng Chuan <[email protected]> wrote: >> >>> https://github.com/zeromq/czmq/issues/104 >>> >>> If compiling using the configure script you need to provide FD_SETSIZE. >>> >>> On 15 Feb 2014 01:28, "Charles Remes" <[email protected]> wrote: >>> I received a bug report from a user who compiled zeromq 4.0.3 on Windows >>> using 32-bit mingw. The code that blew up was: >>> >>> context = LibZMQ.zmq_ctx_new >>> rc = LibZMQ.zmq_ctx_set(context, ZMQ::MAX_SOCKETS, 1023) >>> >>> At this point, “rc” was returning -1 and the error message is “Invalid >>> Argument”. After playing around with this a bit I discovered that the >>> default MAX_SOCKETS was 63 on this platform. >>> >>> context = LibZMQ.zmq_ctx_new >>> print LibZMQ.zmq_ctx_set(context, ZMQ::MAX_SOCKETS) # => prints “63” >>> >>> So, trying to set a value above 63 always fails. >>> >>> For further confirmation, I ran “make check” and noted that >>> “test_ctx_options” also fails (though it doesn’t tell me why). >>> >>> Does anyone know why MAX_SOCKETS is set to 63 when compiling on Windows >>> using mingw? When I look at the source, MAX_SOCKETS_DFLT is set to 1023! >>> >>> cr >>> >>> _______________________________________________ >>> zeromq-dev mailing list >>> [email protected] >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >>> _______________________________________________ >>> zeromq-dev mailing list >>> [email protected] >>> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> >> >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev >> >> >> _______________________________________________ >> zeromq-dev mailing list >> [email protected] >> http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev > > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev
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