Search notes:

gcc --version

gcc --version and g++ --version print the version of the compiler.

Writing compiler information into .comment section

GCC (as well as Clang) write the compiler's version into an object file's .comment section: 
$ echo 'void f() {}' | gcc -xc -c -o f.obj -
$ readelf -p .comment f.obj

String dump of section '.comment':
  [     1]  GCC: (Debian 10.2.1-6) 10.2.1 20210110

$ gcc --version | head -1
gcc (Debian 10.2.1-6) 10.2.1 20210110

See also

GCC options

Index

Fatal error: Uncaught PDOException: SQLSTATE[HY000]: General error: 8 attempt to write a readonly database in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php:78 Stack trace: #0 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(78): PDOStatement->execute(Array) #1 /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php(30): insert_webrequest_('/notes/developm...', 1788554868, '216.73.216.30', 'Mozilla/5.0 App...', NULL) #2 /home/httpd/vhosts/renenyffenegger.ch/httpsdocs/notes/development/languages/C-C-plus-plus/GCC/options/version(51): insert_webrequest() #3 {main} thrown in /home/httpd/vhosts/renenyffenegger.ch/php/web-request-database.php on line 78