Use commas to separate options. There are many options available that provide specific types of compiled output, some for preprocessing, others controlling assembly, linking, optimization, debugging, and still others for target-specific
The gcc program accepts options and file names as operands. Many options have multi-letter names; therefore multiple single-letter options may not be grouped: -dv is very different from -d -v. You can mix options and other arguments. For the most part, the
In gcc we have -x option that use to specify how to treat source file. For example suppose we have a csourcecode file without any extension like .c. In gcc simply using -x c before express csourcecode force compiler to use it as valid c source code.
Provide an output file name using -o. If a specific output file name is desired then this can be done using -o option. gcc -Wall helloworld.c …
Not all systems support this option. For predictable results, you must also specify the same set of options used for compilation (-fpic, -fPIC, or model suboptions) when you specify this linker option. As per Difference between -shared and -Wl,-shared of the GCC options Passing -shared to GCC may enable or disable other flags at link time. gcc -D option flag.
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Options: The gcc_variant depends on the target platform, as follows:
These options control the C preprocessor, which is run on each C source file before actual compilation. If you use the -E option, nothing is done except
See section Compiling C++ Programs, for a summary of special options for compiling C++ programs.
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The ”–salts” option threshold is now applied before removal of
name="Cross GCC Compiler" superClass="cdt.managedbuild.tool.gnu.cross.c.compiler">