The -qcomplexgccincl compiler option instructs the compiler to internally wrap #pragma complexgcc(on) and #pragma complexgcc(pop) directives around include files found in specified directories.
where:
pathname Specifies a search path for include files. If pathname is not specified, the compiler assumes a pathname of /usr/include.
Include files found in directories specified by the -qcomplexgccincl compiler option are internally wrapped by the #pragma complexgcc(on) and #pragma complexgcc(pop) directives.
Include files found in directories specified by -qnocomplexgccincl are not wrapped by these directives.
The default setting is -qcomplexgccincl=/usr/include.