[Gmsh] link gmsh library with c++

[Aly Ahmed Mokhtar Mahmou Badran]

Dear gmsh developers,

     I am learning to link gmsh in a c++ code.  I tried with Takuya
OSHIMA's code to start with.  I was able to link the header files but I
couldn't link the gmsh library on a LINUX system from the terminal.

The errors that pop up are:

main.cpp:(.text+0x2e): undefined reference to `GmshInitialize(int, char**)'

main.cpp:(.text+0x9c): undefined reference to
`GmshSetOption(std::basic_string<char, std::char_traits<char>,
std::allocator<char> >, std::basic_string<char, std::char_traits<char>,
std::allocator<char> >, double, int)'

main.cpp:(.text+0x140): undefined reference to
`GmshSetOption(std::basic_string<char, std::char_traits<char>,
std::allocator<char> >, std::basic_string<char, std::char_traits<char>,
std::allocator<char> >, double, int)'

main.cpp:(.text+0x1b9): undefined reference to
`GModel::GModel(std::basic_string<char, std::char_traits<char>,
std::allocator<char> >)'

main.cpp:(.text+0x218): undefined reference to
`GModel::setFactory(std::basic_string<char, std::char_traits<char>,
std::allocator<char> >)'

main.cpp:(.text+0x270): undefined reference to `GModel::addVertex(double,
double, double, double)'

main.cpp:(.text+0x2a3): undefined reference to `GModel::addVertex(double,
double, double, double)'

main.cpp:(.text+0x2d6): undefined reference to `GModel::addVertex(double,
double, double, double)'

main.cpp:(.text+0x309): undefined reference to `GModel::addVertex(double,
double, double, double)'

main.cpp:(.text+0x334): undefined reference to `GModel::addVertex(double,
double, double, double)'

main.cpp:(.text+0x352): undefined reference to `GModel::addLine(GVertex*,
GVertex*)'

main.cpp:(.text+0x373): undefined reference to `GModel::addLine(GVertex*,
GVertex*)'

main.cpp:(.text+0x394): undefined reference to `GModel::addLine(GVertex*,
GVertex*)'

main.cpp:(.text+0x3b5): undefined reference to `GModel::addLine(GVertex*,
GVertex*)'

main.cpp:(.text+0x4db): undefined reference to
`GModel::addPlanarFace(std::vector<std::vector<GEdge*,
std::allocator<GEdge*> >, std::allocator<std::vector<GEdge*,
std::allocator<GEdge*> > > >)'

main.cpp:(.text+0x543): undefined reference to
`GModel::writeGEO(std::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&, bool)'

main.cpp:(.text+0x572): undefined reference to `GModel::mesh(int)'

main.cpp:(.text+0x5d9): undefined reference to
`GModel::writeMSH(std::basic_string<char, std::char_traits<char>,
std::allocator<char> > const&, double, bool, bool, bool, double, int, int)'

main.cpp:(.text+0x60d): undefined reference to
`GModel::indexMeshVertices(bool, int)'

main.cpp:(.text+0x61c): undefined reference to
`GModel::getNumMeshVertices()'

main.cpp:(.text+0x642): undefined reference to
`GModel::getMeshVertexByTag(int)'

main.cpp:(.text+0x7f9): undefined reference to `GmshFinalize()'

collect2: ld returned 1 exit status


This is what I used so far:

-l /usr/lib/libgmsh-2.5.1.so

and

g++ -o main -L/usr/lib/libgmsh.a main.o

and

gcc -c /usr/lib/libgmsh-2.5.1.so main.cpp


Still I get the same errors when I compile.


Can someone help me to link the libgmsh.a when compiling the .cpp file?

Thanks in advance.
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