Diagnostic 10120: overriding <option> with <option>

	October 2, 2009 1:00 AM PDT

Cause:

This warning is issued by the driver when you have two conflicting options on the same command line. The last one on the command line "wins".Remember that command line options can exist in makefiles and config files (i.e. icc.cfg, icpc.cfg, icl.cfg or ifort.cfg).

Example:

> icc -O3 -O2 -c foo.c
icc: command line warning #10120: overriding '-O3' with '-O2'

Resolution Status:

Look at your command line and remove the redundant flag.

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This article applies to: Intel® C++ Compiler for Linux* Knowledge Base, Intel® C++ Compiler for Mac OS X* Knowledge Base, Intel® C++ Compiler for Windows* Knowledge Base, Intel® Parallel Composer Knowledge Base

For more complete information about compiler optimizations, see our Optimization Notice.

Comments (1)

January 16, 2009 5:37 AM PST

Adam

Hello, I have just received this warning whilst compiling some code:-

ifort: command line warning #10120: overriding '-O3' with '-O2'

Is it the compiler that is calling the override, or something else? I am using Intel v10.1.021 on an SGI system.