Imagine I have file1.c
, file2.c
. First I compile one file with gcc -c file1.c -o file1.o
. Is it OK to compile them together with gcc file1.o file2.c -o prog
? I tried it and no errors are shown, but should I compile file2.o
first? Is it correct to mix .c
and .o
files?
Yes, you can do gcc file1.o file2.c -o prog
. You can also do gcc file1.c file2.c -o prog
.
GCC will handle compiling file2.c behind the scenes.