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9.2 Version numbers

You can find the version number of gcc using the version option:

$ gcc --version
gcc (GCC) 3.3.1

The version number is important when investigating compilation problems, since older versions of GCC may be missing some features that a program uses. The version number has the form major-version.minor-version or major-version.minor-version.micro-version, where the additional third "micro" version number (as shown above) is used for subsequent bug-fix releases in a release series.

More details about the version can be found using -v:

$ gcc -v
Reading specs from /usr/lib/gcc-lib/i686/3.3.1/specs
Configured with: ../configure --prefix=/usr
Thread model: posix
gcc version 3.3.1

This includes information on the build flags of the compiler itself and the installed configuration file, 'specs'.

  Published under the terms of the GNU General Public License Design by Interspire