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Created by Philip Carns@carnsOwner

"`__isoc99_fscanf' is already defined" error on Ubuntu 19.10

Compiling darshan-runtime on Ubuntu 19.10 produces this error:

/tmp/ccUnySAm.s: Assembler messages:
/tmp/ccUnySAm.s:8344: Error: symbol `__isoc99_fscanf' is already defined
make: *** [Makefile:181: lib/darshan-stdio.po] Error 1

Probably a change in how that symbol is declared or defined in system headers.