<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">Hello ipopt'ers,</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif">We are trying to build Ipopt 3.12.6 in windows win32 and win64, using MinGW(we are using tdm-gcc with gcc/gfortran 5.1).</div><div class="gmail_quote"><div dir="ltr"><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">We were successful building win32 version both Debug and Release versions, but not so lucky with the win64 version.</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">The versions of the additional software we use:</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">- MUMPS 4.10.0</div><div style="font-family:arial,helvetica,sans-serif">- blas (coinor 20130815)</div><div style="font-family:arial,helvetica,sans-serif">- Lapack 3.4.2</div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">To build Ipopt, we proceed as follows:</div><div style="font-family:arial,helvetica,sans-serif"><br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote"><font face="monospace, monospace"># Load cywin and VS2012<br></font><font face="monospace, monospace">export CC=cl<br></font><font face="monospace, monospace">export CXX=cl<br></font><font face="monospace, monospace">./configure --disable-shared --enable-static --with-pic --enable-doscompile=msvc --enable-dependency-linking lt_cv_deplibs_check_method=pas<wbr>s_all --with-blas-lib="$BLAS_HOME/bl<wbr>as.dll" --with-lapack-lib="$LAPACK_HOM<wbr>E/liblapack.dll" --with-mumps-lib="$MUMPS_HOME/<wbr>libdmumps.lib $MUMPS_HOME/<a href="http://libmumps_common.li">libmumps_common.li</a><wbr>b $MUMPS_HOME/libpord.lib $MUMPS_HOME/libmpiseq.lib"<br></font><font face="monospace, monospace">make -j12 install</font></blockquote><div><div style="font-family:arial,sans-serif;font-size:12.8px"><br></div><div style="font-family:arial,sans-serif;font-size:12.8px">Ipopt builds fine win32/win64. And we have a example code to use Ipopt. To build and link the example, we use the following 32bits libraries:</div><div style="font-family:arial,sans-serif;font-size:12.8px"><br></div><div style="font-family:arial,sans-serif;font-size:12.8px">- <span style="font-size:12.8px">$MINGW_ROOT/lib/libmingwex.a</span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px">- </span><span style="font-size:12.8px">$MINGW_ROOT/lib/gcc/mingw32/<wbr>5.</span><span style="font-size:12.8px">1.0/libgfortran.dll.a</span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px">- $MINGW_ROOT/lib/gcc/mingw32/5.</span><span style="font-size:12.8px"><wbr>1.0/libgcc.a</span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px"><br></span></div><div style="font-family:arial,sans-serif;font-size:12.8px">Builds, links and runs nicely on win32. However in win64 we use:</div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px"><br></span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px">- $MINGW_ROOT/x86_64-w64-</span><span style="font-size:12.8px">mingw32<wbr>/lib/libmingwex.a</span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px">- </span><span style="font-size:12.8px">$MINGW_ROOT/lib/gcc/x86_64-</span><span style="font-size:12.8px">w<wbr>64-mingw32/5.1.0/libgfortran.</span><span style="font-size:12.8px">d<wbr>ll.a</span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px">- $MINGW_ROOT/lib/gcc/x86_64-</span><span style="font-size:12.8px">w64<wbr>-mingw32/5.1.0/libgcc.a</span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><br></div><div style="font-family:arial,sans-serif;font-size:12.8px">Here is where the fun starts. We start to get errors like:</div><div style="font-family:arial,sans-serif;font-size:12.8px"><br></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote"><span style="font-size:12.8px">libmingwex.lib(lib64_</span><span style="font-size:12.8px">libmingwe<wbr>x_a-powi.o) : error LNK2001: unresolved external symbol __mingw_raise_matherr</span></blockquote><div style="font-family:arial,sans-serif;font-size:12.8px"><br></div><div style="font-family:arial,sans-serif;font-size:12.8px">Looking around in mingw we managed to find the missing symbol, at:</div><div style="font-family:arial,sans-serif;font-size:12.8px"><br></div><div style="font-family:arial,sans-serif;font-size:12.8px">- <span style="font-size:12.8px">$MINGW_ROOT\x86_64-w64-</span><span style="font-size:12.8px">mingw<wbr>32\lib\libmingw32.a</span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px"><br></span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px">The error then becomes</span></div><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px"><br></span></div><blockquote style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex" class="gmail_quote"><font face="monospace, monospace"><span style="font-size:12.8px">MSVCRT.lib(gs_report.obj) : error LNK2005: </span><b style="font-size:12.8px">__report_gsfailure already defined</b><span style="font-size:12.8px"> in libmingw32.lib(lib64_</span><span style="font-size:12.8px">libmingw3<wbr>2_a-gs_support.o)<br></span><span style="font-size:12.8px">libmingw32.lib(lib64_</span><span style="font-size:12.8px">libmingw3<wbr>2_a-merr.o) : error LNK2005:</span><b style="font-size:12.8px"> _matherr already defined</b><span style="font-size:12.8px"> in MSVCRT.lib(merr.obj)</span></font></blockquote><div style="font-family:arial,sans-serif;font-size:12.8px"><span style="font-size:12.8px"><br></span></div></div><div><div data-smartmail="gmail_signature"><div dir="ltr"><div><div style="font-family:arial,helvetica,sans-serif">Does anybody know what are we missing? Or how to solve it?</div><div style="font-family:arial,helvetica,sans-serif">Does anybody know if it's possible to build ipopt with mingw using gfortran? Is it documented in detail?</div></div><div style="font-family:arial,helvetica,sans-serif"><br></div><div style="font-family:arial,helvetica,sans-serif">Thanks for your help, and patience to read this far.</div><div><br></div><div><b><i><font color="#000066">Federico Prades Illanes</font></i></b> - <i>ext. (2)75682 - <b>Software Evangelist</b></i></div><div><div><b><font color="#3333ff">Quantitative and Business Solutions (QBS) </font></b><b><font color="#3333ff">- CIB - </font></b><b><font color="#3333ff">BBVA</font></b></div></div></div></div></div>
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