[Gmsh] Gmsh installation on Linux

[g.yu at qmul.ac.uk]

Dear All,

I would like to use Gmsh for my research project but have problems  
with its installation on my Linux machine.

I unzipped the downloaded file and followed instructions in README but  
got error message as shown below:

./configure
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking how to run the C preprocessor... gcc -E
checking for ranlib... ranlib
checking for ar... /usr/bin/ar
checking for fltk-config... no
configure: error: Could not find fltk-config. Try --with-fltk-prefix?

Could anyone please guide me how to go through this?

Many thanks.