Failed to compile the library in Linux with gfortran version using gfortran version 6.3.1

[WangYun1995]

Hello, @leonfoks

Following your instructions, I typed cmake ../src in the command line, and everything is OK. Then I typed make to compile the library. However, it failed and returned to me error information as follows.

[ 81%] Building Fortran object CMakeFiles/coretran.dir/spatial/m_KdTree.f90.o
[ 83%] Building Fortran object CMakeFiles/coretran.dir/spatial/m_geometry.f90.o
[ 84%] Building Fortran object CMakeFiles/coretran.dir/spatial/sm_KdTreeBranch_class.f90.o
[ 86%] Building Fortran object CMakeFiles/coretran.dir/spatial/sm_KdTreeSearch_class.f90.o
/home/wangy/downloads/coretran/src/spatial/sm_KdTreeSearch_class.f90:1135:0:

   module procedure rangeSearch_KD!(search, tree, D, lowerBound, upperBound) result(iPoints)
 
internal compiler error: in gfc_get_symbol_decl, at fortran/trans-decl.c:1419
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
CMakeFiles/coretran.dir/build.make:731: recipe for target 'CMakeFiles/coretran.dir/spatial/sm_KdTreeSearch_class.f90.o' failed
make[2]: *** [CMakeFiles/coretran.dir/spatial/sm_KdTreeSearch_class.f90.o] Error 1
CMakeFiles/Makefile2:116: recipe for target 'CMakeFiles/coretran.dir/all' failed
make[1]: *** [CMakeFiles/coretran.dir/all] Error 2
Makefile:148: recipe for target 'all' failed
make: *** [all] Error 2

Could you help me address this issue?

[leonfoks]

Hi @WangYun1995 ! Thanks for trying out Coretran!

I'm not entirely sure, but the message states a compiler error. I just tested my install with gfortran v 10 and it worked.
Can you try using an updated version of gfortran please?

Thanks!

[WangYun1995]

Hi @leonfoks

After I deleted module procedure rangeSearch_KD and all related stuff, I compiled the library successfully.

Since all my needs are 2D tree and 3D tree, this solution is totally OK.

[leonfoks]

I've made a slight change to my imports in submodules. If you have time and can try a completely fresh compile that would help to see if it fixed it. Remove the entire build folder and run the cmake command again to make sure its fresh!

[WangYun1995]

I can say for sure that "internal compiler error" indicates the version of my compiler is too low since "coretran" works well on Windows with gfortran 7.4.