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jadia/sem_open problem.md

Last active November 5, 2018 10:33
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unable to compile sem_open in UBUNTU
Raw
sem_open problem.md

Problem

/tmp/ccz11fg4.o: In function `main':
firstCode.c:(.text+0x24): undefined reference to `sem_open'
firstCode.c:(.text+0x34): undefined reference to `sem_post'
firstCode.c:(.text+0x4c): undefined reference to `sem_wait'

Solution

Link with pthread library.

compile with -pthread

gcc filename.c -o file.out -lpthread

Works on Ubuntu!

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