None.
Changes the standard search location for the XL C and system header files.
.- :-------------. V | >>- -q--c_stdinc--=--+---+----directory_path-+--+---+---------->< '-"-' '-"-'
By default, the compiler searches the directories specified in the configuration file for the XL C header files (this is normally /usr/vac/include/) and for the system header files (this is normally /usr/include/).
This option allows you to change the search paths for specific compilations. To permanently change the default search paths for the XL C and system headers, you use a configuration file to do so; see Directory search sequence for include files for more information.
If this option is specified more than once, only the last instance of the option is used by the compiler.
This option is ignored if the -qnostdinc option is in effect.
None.
xlc myprogram.c -qc_stdinc=mypath/headers1:mypath/headers2