[[root_option]]

root

Specifies root directory of the compiler installation. This option is
necessary only if it is not possible to detect this information from the
compiler command—for example if the specified compiler command is a user
script.

[[common_options]]

cflags

Specifies additional compiler flags that will be used when compiling C
sources.

cxxflags

Specifies additional compiler flags that will be used when compiling {CPP}
sources.

compileflags

Specifies additional compiler flags that will be used when compiling
both C and {CPP} sources.

linkflags

Specifies additional command line options that will be passed to the
linker.