4.30 Manually specifying the filename and location of a Precompiled Header (PCH) file

You can manually specify the filename and location of PCH files for the compiler to create and use.

Note:

Support for Precompiled Header (PCH) files is deprecated from ARM Compiler 5.05 onwards on all platforms. Note that ARM Compiler on Windows 8 never supported PCH files.

Use the following compiler command-line options to specify PCH filenames and locations:

  • --create_pch=filename

  • --pch_dir=directory

  • --use_pch=filename

If you use --create_pch or --use_pch with the --pch_dir option, the indicated filename is appended to the directory name, unless the filename is an absolute path name.

Note:

If multiple options are specified on the same command line, the following rules apply:

  • --use_pch takes precedence over --pch.

  • --create_pch takes precedence over all other PCH file options.

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