[Martin_]

Hello,

I have a legally obtained and installed copy of Fluent, that I'm trying to make run on unsupported Linux distribution (Arch Linux in my case). A compilation of a simple udf file (which works fine under Windows) results in an error on Linux. The error message is:

cpp -I"/opt/ansys_inc/v145/fluent/fluent14.5.7/src"  -I"/opt/ansys_inc/v145/fluent/fluent14.5.7/cortex/src"  -I"/opt/ansys_inc/v145/fluent/fluent14.5.7/client/src"  -I"/opt/ansys_inc/v145/fluent/fluent14.5.7/multiport/src" -I.  -DUDFCONFIG_H="<udfconfig.h>"  "/home/martin/Work/TestSimulationAnsys/Elbow_TestCase/ParabolicSteadyVelocity_ElbowPipe.c"
In file included from /home/martin/Work/TestSimulationAnsys/Elbow_TestCase/ParabolicSteadyVelocity_ElbowPipe.c:7:
/usr/include/math.h:379: warning: `M_SQRT2' redefined
/opt/ansys_inc/v145/fluent/fluent14.5.7/src/global.h:99: warning: this is the location of the previous definition
Error: /usr/include/bits/types.h: line 31: syntax error.

Besides the warnings about redefined sqrt, the only clue is 'line 31 in types.h', but this line is a typedef for unsigned short int:

typedef unsigned short int __u_short;

I have found another post with a similar problem and the solution proposed was to check the line endings to make sure that the carriage returns are in Linux format and not Windows format (i.e. use dos2unix or similar on the udf file). I tried that, but this did not fix my problem. Does anybody have a suggestion what to do? Thank you.