[gecode-users] Compiling Gecode under MinGW

[Christian Schulte]

The reason is simple: we do not support MinGW as a platform. It is possible
to make it compatible and it shouldn't be that hard: one would just have to
find out that it is MinGW and use the pthreads package instead on the
Windows thread package.

However we are not willing to do that ourselves. If somebody sends a patch
(hint! Hint!) we will surely incorporate it.

Christian

--
Christian Schulte, www.ict.kth.se/~cschulte/



-----Original Message-----
From: users-bounces at gecode.org [mailto:users-bounces at gecode.org] On Behalf
Of Maik Riechert
Sent: Friday, August 31, 2012 11:05 AM
To: users at gecode.org
Subject: [gecode-users] Compiling Gecode under MinGW

Hi,

As I want to use Gecode in Windows with Haskell and cabal-install uses GCC,
I need to rebuild it from source in MinGW/MSYS.

I did a ./configure --with-host-os=linux which went through and then "make"
which had these errors:

g++ -I. -mthreads -ffast-math -fno-strict-aliasing -O3
-fvisibility=hidden -ggdb -pipe -Wall -Wextra -pthread -DNDEBUG   \
         -c -o gecode/support/exception.o  gecode/support/exception.cpp In
file included from ./gecode/support/thread.hpp:264:0,
                  from ./gecode/support.hh:130,
                  from gecode/support/exception.cpp:38:
./gecode/support/thread/pthreads.hpp: In static member function 'static void
Gecode::Support::Thread::sleep(unsigned int)':
./gecode/support/thread/pthreads.hpp:125:7: error: '::sleep' has not been
declared
./gecode/support/thread/pthreads.hpp: In static member function 'static
unsigned int Gecode::Support::Thread::npu()':
./gecode/support/thread/pthreads.hpp:133:36: error: 
'_SC_NPROCESSORS_ONLN' was not declared in this scope
./gecode/support/thread/pthreads.hpp:133:56: error: 'sysconf' was not
declared in this scope
gecode/support/exception.cpp: At global scope:
gecode/support/exception.cpp:46:3: warning: 
'Gecode::Exception::Exception(const char*, const char*)' redeclared without
dllimport attribute after being referenced with dll linkage [enabled by
default]
gecode/support/exception.cpp:59:3: warning: 'virtual const char*
Gecode::Exception::what() const' redeclared without dllimport attribute: 
previous dllimport ignored [-Wattributes]
make[1]: *** [gecode/support/exception.o] Error 1


Is it possible to make this compatible? Why is it failing at all?

Cheers
Maik

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