gcc -v

gcc -v prints the commands executed to run the stages of compilation

In adition, it reports the version number of

the compiler driver program,
the preprocessor and
the compiler proper

The output of -v goes to stderr.

main.c

#include <stdio.h>

int main() {
  printf("Hello world\n");
}

Github repository about-gcc, path: /options/v/main.c

Invoking the compiler with -v

#  vi: ft=sh
#
#  The output of -v is printed to stderr.
#
#  The following command redirects stderr to v.out
#
gcc -v main.c 2> v.out

#
#  Some greps on v.out  
#
grep 'gcc version'           v.out
grep 'Thread model'          v.out
grep 'Configured with'       v.out
grep 'Target'                v.out
grep 'COLLECT_LTO_WRAPPER'   v.out
grep 'COLLECT_GCC'           v.out

#
#   With the .S suffix, cc1 is invoked first with
#   the -E flag
#
gcc -v assembly.S 2> v.out

#
#   With the .i suffix, cc1 is invoked with the -fpreprocessed flag
#
gcc -v already-preprocessed.i 2> v.out

Github repository about-gcc, path: /options/v/invoke_gcc_with_-v

TODO

gcc -### is similar, but does not execute the commands.

gcc -v

main.c

Invoking the compiler with -v

TODO

See also