What is the difference between the 2 compiling commands ?

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1.50/5 (2 votes)

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1)

gcc -c file.c -o file.o

2)

gcc file.c -o file

please if u gonna to answer the question ,try to give an simple answer as much as possible!

What I have tried:

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Posted 24-Apr-21 14:35pm

Ahmad Qassym

Updated 24-Apr-21 21:20pm

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Richard MacCutchan 25-Apr-21 3:36am

Read the gcc documentation where all the options are explained.

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Dave Kreskowiak · Answer 1 · 2021-04-24T15:19:00

-c Compile or assemble the source files, but do not link. The linking stage simply is not done. The ultimate output is in the form of an object file for each source file.

By default, the object file name for a source file is made by replacing the suffix '.c', '.i', '.s', etc., with '.o'.

Unrecognized input files, not requiring compilation or assembly, are ignored.

Aghast (nj) · Answer 2 · 2021-04-24T21:20:00

Solution 3

Command (1) compiles the .c file to a .o (object) file, then stops.

Command (2) compiles the .c file to an object file, then links the object file with the C standard library to produce an executable file named file.

Both commands drop their output in the current directory.

Posted 24-Apr-21 21:20pm

Aghast (nj)