-ifilename--inputfilename
The name of the input file. If this option is not used, then windres will use the first non-option
argument as the input file name. If there are no non-option arguments, then windres will read from
standard input. windres can not read a COFF file from standard input.
-ofilename--outputfilename
The name of the output file. If this option is not used, then windres will use the first non-option
argument, after any used for the input file name, as the output file name. If there is no non-option
argument, then windres will write to standard output. windres can not write a COFF file to standard
output. Note, for compatability with rc the option -fo is also accepted, but its use is not
recommended.
-Jformat--input-formatformat
The input format to read. format may be res, rc, or coff. If no input format is specified, windres
will guess, as described above.
-Oformat--output-formatformat
The output format to generate. format may be res, rc, or coff. If no output format is specified,
windres will guess, as described above.
-Ftarget--targettarget
Specify the BFD format to use for a COFF file as input or output. This is a BFD target name; you can
use the --help option to see a list of supported targets. Normally windres will use the default
format, which is the first one listed by the --help option.
--preprocessorprogram
When windres reads an "rc" file, it runs it through the C preprocessor first. This option may be
used to specify the preprocessor to use, including any leading arguments. The default preprocessor
argument is "gcc -E -xc-header -DRC_INVOKED".
-Idirectory--include-dirdirectory
Specify an include directory to use when reading an "rc" file. windres will pass this to the
preprocessor as an -I option. windres will also search this directory when looking for files named
in the "rc" file. If the argument passed to this command matches any of the supported formats (as
descrived in the -J option), it will issue a deprecation warning, and behave just like the -J option.
New programs should not use this behaviour. If a directory happens to match a format, simple prefix
it with ./ to disable the backward compatibility.
-Dtarget--definesym[=val]
Specify a -D option to pass to the preprocessor when reading an "rc" file.
-Utarget--undefinesym
Specify a -U option to pass to the preprocessor when reading an "rc" file.
-r Ignored for compatibility with rc.
-v Enable verbose mode. This tells you what the preprocessor is if you didn't specify one.
-lval--languageval
Specify the default language to use when reading an "rc" file. val should be a hexadecimal language
code. The low eight bits are the language, and the high eight bits are the sublanguage.
--use-temp-file
Use a temporary file to instead of using popen to read the output of the preprocessor. Use this
option if the popen implementation is buggy on the host (eg., certain non-English language versions
of Windows 95 and Windows 98 are known to have buggy popen where the output will instead go the
console).
--no-use-temp-file
Use popen, not a temporary file, to read the output of the preprocessor. This is the default
behaviour.
-h--help
Prints a usage summary.
-V--version
Prints the version number for windres.
--yydebug
If windres is compiled with "YYDEBUG" defined as 1, this will turn on parser debugging.