cross compile on windows script

Former-commit-id: a071056 [formerly 18c8fc0]
Former-commit-id: 97e2f3c

Author: h-g-s

scripts/buildCBCWin.sh

@@ -0,0 +1,29 @@
+PREFIX="x86_64-w64-mingw32-"
+export CC=${PREFIX}gcc
+export FC=${PREFIX}gfortran
+export CXX=${PREFIX}c++
+export LD=${PREFIX}ld
+export AR=${PREFIX}ar
+export AS=${PREFIX}as
+export NM=${PREFIX}nm
+export STRIP=${PREFIX}strip
+export RANLIB=${PREFIX}ranlib
+export DLLTOOL=${PREFIX}dlltool
+export OBJDUMP=${PREFIX}objdump
+export RESCOMP=${PREFIX}windres
+export MINGWROOT=/usr/x86_64-w64-mingw32/
+
+export CXXFLAGS="-Ofast -fPIC -flto -m64 -DNDEBUG -fprefetch-loop-arrays -static"
+export CFLAGS="-Ofast -fPIC -flto -m64 -DNDEBUG -fprefetch-loop-arrays -static"
+export FCFLAGS="-Ofast -fPIC -flto -m64 -DNDEBUG -fprefetch-loop-arrays -static"
+export F77FLAGS="-Ofast -fPIC -flto -m64 -DNDEBUG -fprefetch-loop-arrays -static"
+export LDFLAGS="-Ofast -static -fPIC -flto -m64 -Bstatic -lgfortran -static-libgcc -static-libgfortran -static-libstdc++"
+
+cd ~/src/cbctrunk/
+
+$(CXX) \
+    -I/opt/w64/include/coin/ -L/opt/w64/lib/coin/ \
+    -I${MINGWROOT}/include/ $(CXXFLAGS) \
+    -mdll -shared -DCBC_THREAD ~/src/cbctrunk/Cbc/src/Cbc_C_Interface.cpp $(LDFLAGS) \
+    -o ~/git/mip/mip/libraries/cbc-c-windows-x86-64.dll
+

test/mip_test.py

@@ -117,7 +117,7 @@ def test_tsp(solver: str):
     Aout = {n: [a for a in A if a[0] == n] for n in N}
     Ain = {n: [a for a in A if a[1] == n] for n in N}
     m = Model(solver_name=solver)
-    m.verbose = 0
+    m.verbose = 1
 
     x = {a: m.add_var(name='x({},{})'.format(a[0], a[1]),
                       var_type=BINARY) for a in A}