[Coin-discuss] MaxCut build

[Michele Codutti]

Hi Lou, I followed your suggestion ad removed the two flags in
Makefile.CYGWIN but another error came out:

Creating dependency CoinFactorization1.d
make[4]: Leaving directory `/home/user/COIN/Coin'
make[4]: Entering directory `/home/user/COIN/Coin'

Compiling CoinFactorization1.cpp
In file included from include/CoinPackedVectorBase.hpp:14,
                 from include/CoinIndexedVector.hpp:13,
                 from CoinFactorization1.cpp:10:
include/CoinFloatEqual.hpp: In member function `bool
CoinAbsFltEq::operator()(do
uble, double) const':
include/CoinFloatEqual.hpp:52: error: `isnan' undeclared (first use this
functio
n)
include/CoinFloatEqual.hpp:52: error: (Each undeclared identifier is
reported on
ly once for each function it appears in.)
include/CoinFloatEqual.hpp: In member function `bool
CoinRelFltEq::operator()(do
uble, double) const':
include/CoinFloatEqual.hpp:113: error: `isnan' undeclared (first use
this functi
on)
make[4]: *** [CYGWIN-O2/CoinFactorization1.o] Error 1
make[4]: Leaving directory `/home/user/COIN/Coin'
make[3]: *** [install] Error 2
make[3]: Leaving directory `/home/user/COIN/Coin'
make[2]: *** [libdepend] Error 2
make[2]: Leaving directory `/home/user/COIN/Clp'
make[1]: *** [install] Error 2
make[1]: Leaving directory `/home/user/COIN/Osi/OsiClp'
make: *** [libdepend] Error 2

It seems that "isnan" is not declared but I can't find what library has
it.
Do you think that there's something wrong in MaxCut Makefile
configuration or is some CYGWIN library missing?
Other comments and suggestion are welcome.

Il giorno mer, 02/08/2006 alle 08.30 -0700, Lou Hafer ha scritto:
> Michele,
> 
> 	I was able to try a build of MaxCut on cygwin.  The problem lies in
> Makefiles/Makefile.CYGWIN.  At the top of the file you'll see the lines
> 
> CXX := g++  -mno-cygwin
> FF  := g77  -mno-cygwin
> 
> Change these lines to read
> 
> CXX := g++ 
> FF  := g77
> 
> (MaxCut doesn't use Fortran, but fixing the FF definition can't hurt.)  This
> fixes the problem on my local cygwin system --- I was able to build and run the
> example.  You'll need to remove all executables and library files and rebuild
> from scratch for consistency.
> 
> The -mno-cygwin option produces executable files which will run in a standard
> Windows environment (i.e., the executable does not depend on libraries that are
> only available in the cygwin environment).  This is a good thing, but my
> knowledge of BCP is not sufficient for me to do a quick fix that incorporates
> -mno-cygwin.
> 
> 							Lou
> 
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