Hello, On Wed, Jul 11, 2012 at 10:54:24PM +1000, Robert Durkacz wrote:
I am just starting with ginac but unable to build the derivative.cpp program from doc/examples/ in ginac-1.6.2 Others of the examples that I tried were built successfully, eg compile1.cpp and compile3.exe
I am using these versions of ginac and cln: cln-1.3.2 ginac-1.6.2 These libraries were built without problems as per INSTALL instructions.
compiler (gcc --version): gcc (GCC) 3.4.4 (cygming special, gdc 0.12, using dmd 0.125)
platform (uname -a): CYGWIN_NT-5.1 dell 1.7.15(0.260/5/3) 2012-05-09 10:25 i686 Cygwin
command line of compile and link steps: g++ -c -Wall -g -I.. -I../ginac -DIN_GINAC -o gcc/derivative.o derivative.cpp g++ -o derivative gcc/derivative.o ../ginac/.libs/libginac.a /usr/local/lib/libcln.a -ldl ../ginac/.libs/libginac.a(parser.o): In function `_ZNSt16invalid_argumentD1Ev': /home/Owner/technical/ginac-1.6.2/ginac/parser/parser.h:46: multiple definition of `GiNaC::container<std::list>::info(unsigned int) const' ../ginac/.libs/libginac.a(lst.o):/usr/lib/gcc/i686-pc-cygwin/3.4.4/include/c++/bits/list.tcc:(.text+0x0): first defined here collect2: ld returned 1 exit status It is beyond my current abilities to sort out this problem. Could someone tell me what is going wrong?
This is a bug in GiNaC. It has been fixed in git (commit e5eeee53d814, ` [bugfix] Always #include <lst.h> before using lst. Fixes build error on MinGW.'). Could you please verify if the fix works for you? Best regards, Alexei