[deepbandivadekar]

As the question suggests, is there any straight-forward way to install OpenCASCADE so that I can use Boolean Operations in Gmsh ?

It seems I could install gmsh sucessfully but it seems my machine doesn't have the correct version of OpenCASCADE.
Following is from the cmake log:

Found OpenCASCADE version 6.8.0 in /usr/include/oce
CMake Warning at CMakeLists.txt:1139 (message):
   Gmsh requires OpenCASCADE >= 6.9.1

There's not a very clear installation instructions for OpenCASCADE but I downloaded the cmake source from their website. When I tried to build it with make it fails at 41% with following errors

[ 41%] Linking CXX shared library ../../lin64/gcc/lib/libTKService.so
/usr/bin/ld: cannot find -lXi
collect2: error: ld returned 1 exit status
src/TKService/CMakeFiles/TKService.dir/build.make:703: recipe for target 'lin64/gcc/lib/libTKService.so.7.3.0' failed
make[2]: *** [lin64/gcc/lib/libTKService.so.7.3.0] Error 1
CMakeFiles/Makefile2:1193: recipe for target 'src/TKService/CMakeFiles/TKService.dir/all' failed
make[1]: *** [src/TKService/CMakeFiles/TKService.dir/all] Error 2
Makefile:127: recipe for target 'all' failed
make: *** [all] Error 2

[deepbandivadekar]

If it helps anyone..



Solved this with

sudo apt-get install libxi-dev

and then reinstall.