multiple definition of 'xxx'; ... first defined here - Githubissues

UW-Hydro / VIC

The Variable Infiltration Capacity (VIC) Macroscale Hydrologic Model

http://vic.readthedocs.io

MIT License

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multiple definition of 'xxx'; ... first defined here #936

Open huangtk-gaoq opened 1 year ago

huangtk-gaoq commented 1 year ago

Bug Reports

VIC.5.0.1
linux
ubuntu
I downloaded VIC 5.0.1, open ubuntu terminal, enter path cd VIC-VIC.5.0.1\vic\drivers\classic\ and print make, it should generate a .exe file named "vic_classic.exe", but it didn't and shows lots of lines of similar mistakes such as /usr/bin/ld: /tmp/cctyYjct.o:/home/htk/VIC-VIC.5.0.1/vic/drivers/classic/../../vic_run/include/vic_log.h:61: multiple definition ofLOG_DEST'; /tmp/cc6S4S9n.o:/home/htk/VIC-VIC.5.0.1/vic/drivers/classic/../../vic_run/include/vic_log.h:61: first defined here`.
I am very new to C code , so really don't have any clue how to fix it.

pyested commented 5 months ago

Hi, I've faced the same problem and was able to solve it. It seems that some versions of ld exit with an error in case of multiple definitions. The way to solve it is to allow multiple definitions. I've done this adding the flag -Wl,--allow-multiple-definition in the Makefile to the CFLAGS variable (see image below). This way the compilation exits without errors. Hope this is helpful.

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