Dear all My name is Tatsuro MATSUOKA. I am a Octave-cygwin maintainer and also am trying to build octave system on the mingw. http://www.geocities.jp/tmoctwin/ I am struggling with Octave-forge packages on mingw. The Octave-forge packages, which are additional packages to Octave, have a symbolic package, which are mainly for used for get analytical derivatives for non-linear eq. and ODE solvers. Unlike the cygwin, the building process of GiNac is very difficult for me and has not been successful yet. (Cygwin build was easily successful) With the help of the cygwin pkg-config and fig2dev, I have at last been successful in ./configure. However I have not been successful for the 'make'. Error messages at the 'make' are described at the end of the mail. excompiler.cpp:116: error: `mktemp' was not declared in this scope This error might be critical and I have not been able to find the reason. I would like to wait for someone suggesting me. Regards Tatsuro ******************************** make[2]: Entering directory `/home/octaves/ginac-1.4.1/ginac' /bin/sh ../libtool --tag=CXX --mode=compile /mingw/bin/g++ -DHAVE_CONFIG_H -I. -I.. -I/mingw/include -I/usr/local/octave-3.0.0/include -I/GnuWin32/include -I/usr/local/octave-3.0.0/include -g -O2 -MT excompiler.lo -MD -MP -MF .deps/excompiler.Tpo -c -o excompiler.lo excompiler.cpp /mingw/bin/g++ -DHAVE_CONFIG_H -I. -I.. -I/mingw/include -I/usr/local/octave-3.0.0/include -I/GnuWin32/include -I/usr/local/octave-3.0.0/include -g -O2 -MT excompiler.lo -MD -MP -MF .deps/excompiler.Tpo -c excompiler.cpp -DDLL_EXPORT -DPIC -o .libs/excompiler.o excompiler.cpp: In member function `void GiNaC::excompiler::create_src_file(std::string&, std::ofstream&)': excompiler.cpp:116: error: `mktemp' was not declared in this scope make[2]: *** [excompiler.lo] Error 1 -------------------------------------- Easy + Joy + Powerful = Yahoo! Bookmarks x Toolbar http://pr.mail.yahoo.co.jp/toolbar/