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cobject-files

How to make an executable file from a c object file?

How to make an object file to executable file?

Solution

  • You need to link the object file. Your command:

    gcc -c -o file.cgi file.c

    compiles file.c into an object file (which would typically be called file.o). If you get rid of the '-c', it will generate the executable directly:

    gcc -o file.cgi file.c

    Alternatively (more useful if you have multiple files and don't want to compile all files when only one has changed), do it in two steps:

    # Compile only
gcc -c -o file.o file.c
gcc -c -o file2.o file2.c
# Link
gcc -o file.cgi file.o file2.o