CGAL users discussion list

[Marc Glisse <>]

On Thu, 10 Oct 2013, mytien wrote:

> So, it appears that the installation didn't work after all...
> The example stated above compiles just fine, but as soon as gmp is used, I
> again receive many "undefined references errors". I tried to compile the
> Triangulation_3/simple_triangulation_3.cpp and received these errors:

By now you should know that "I tried" is not as helpful as "here are the 
commands I ran". Did you use cmake to generate a makefile to compile this 
test?

> ./debug\main.o: In function `ZN4CGAL8Gmpq_repC1Ev':
> C:/Qt/Qt5.1.0/Tools/mingw48_32/include/CGAL/GMP/Gmpq_type.h:51: undefined
> reference to `__gmpq_init'

Missing -lgmp on the command line, but I don't know how you called the 
compiler...

> It is very frustrating that the gmp library keeps throwing errors, first

Here it isn't the library complaining but the linker.

> during configuration of CGAL, then during compilation of CGAL and now during
> the compilation of a testprogram that uses CGAL.
> I cannot believe, that this happens to everybody, who tries to use CGAL with
> MinGW. So please, can someone describe every step of how you really compile
> CGAL? Because, apparently I am doing something wrong. I already described my
> steps and the resulting errors and slowly I am running out of ideas...

--
Marc Glisse