Hi, Andreas,<br><br>In windows XP,I used Microsoft Visual Studio 10.0\VC and Compaq Visual Fortran 6.5 to <br><br>compile Ipopt3.8.1 in Cygwin with the command<br><br>./configure -enable-static -enable-doscompile=msvc<br><br>
The configuration was successful.<br><br>However, when I typed<br><br>make<br><br>It always says something like<br><br>C:\cygwin\home\user\CoinIpopt\thirdparty\lapack\LAPACK\SRC\dlaev2.f<br>/bin/sh .libtool --tag=F77 --mode=compile fl32 -O0 -c -o dlamch.lo dlamch.f<br>
fl32 -O0 -c C:\\cygwin\\home\\user\\CoinIpopt\\ThirdParty\\Lapack\\LAPACK\\INSTALL\\dlamch.f<br>fl32: error: Unknown Switch: '-O0'<br>make: *** [dlmach.lo] Error 1<br><br>Also, during confiuration, I got warnings like<br>
<br>configure: WARNING: The flags FFLAGS="" do not work. I will now just try '-O, but you might <br><br>want to set FFLAGS manually.<br>configure: WARNING: The value for FFLAGS does not work. I will continue with empty FFLAGS, <br>
<br>but you might want to set FFLAGS manually.<br><br>I am not sure if these are related to the error above. Can you give me some comments? <br><br>Thanks,<br><br>Sheldon<br><br><br>