3.1.2. Specifying command-line options with an environment variable

You can specify command-line options by setting the value of the RVCT40_ASMOPT environment variable. The syntax is identical to the command line syntax. The assembler reads the value of RVCT40_ASMOPT and inserts it at the front of the command string. This means that options specified in RVCT40_ASMOPT can be overridden by arguments on the command-line.

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