how to solve a conflict between two ports?

how to decide the best choice between two ports?

in this conflict below, how to decide the best choice and why this occurs. 
OK, I know it's project decision, but if have conflict the ports staff can be
deciding
to put both in different places to avoid this conflict

I have some cases that  it occurs.

===>  Found saved configuration for gdcm-2.2.5
===>   gdcm-2.2.5 depends on file: /usr/local/sbin/pkg - found
=> gdcm-2.2.5.tar.bz2 doesn't seem to exist in /usr/ports/distfiles/.
=> Attempting to fetch
http://heanet.dl.sourceforge.net/project/gdcm/gdcm%202.x/GDCM%202.2.5/gdcm-2.2.5.tar.bz2
gdcm-2.2.5.tar.bz2                            100% of 4189 kB  356 kBps 00m12s
===> Fetching all distfiles required by gdcm-2.2.5 for building
===>  Extracting for gdcm-2.2.5
=> SHA256 Checksum OK for gdcm-2.2.5.tar.bz2.
===>  Patching for gdcm-2.2.5
===>  Applying FreeBSD patches for gdcm-2.2.5
===>   gdcm-2.2.5 depends on executable: doxygen - found
===>   gdcm-2.2.5 depends on file: /usr/local/share/texmf-dist/LICENSE.texmf -
not found
===>    Verifying install for /usr/local/share/texmf-dist/LICENSE.texmf in
/usr/ports/print/teTeX-texmf

===>  teTeX-texmf-3.0_9 conflicts with installed package(s): 
      latex2e-2003.12_1
      tex-3.14159_3

      They install files into the same place.
      You may want to stop build with Ctrl + C.
===>   teTeX-texmf-3.0_9 depends on file: /usr/local/sbin/pkg - found
===> Fetching all distfiles required by teTeX-texmf-3.0_9 for building

===>  teTeX-texmf-3.0_9 conflicts with installed package(s): 
      latex2e-2003.12_1
      tex-3.14159_3

      They will not build together.
      Please remove them first with pkg delete.
*** Error code 1

Stop.
make[2]: stopped in /usr/ports/print/teTeX-texmf
*** Error code 1

Stop.
make[1]: stopped in /usr/ports/devel/gdcm
*** Error code 1

Stop.
make: stopped in /usr/ports/devel/gdcm
root_at_valfenda:/usr/ports/devel/gdcm # 

TIA

   Rizzo