[Debian-med-packaging] Bug#999887: dcmtk FTCBFS: uses TRY_RUN check for signedness of char

[Helmut Grohne]

Source: dcmtk
Version: 3.6.5-1
Tags: patch upstream
User: debian-cross at lists.debian.org
Usertags: ftcbfs

dcmtk fails to cross build from source, because it uses a TRY_RUN check
to determine whether char is signed. Such a check does not have to run
code (which does not work during cross compilation), but can be written
as a compile only test. Please consider applying the attached patch to
fix this instance of TRY_RUN. There are more TRY_RUN to be fixed to make
dcmtk cross buildable though. So please consider applying the attached
patch as an incremental step.

Helmut
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