Compilation C, C++, Objective-C et Objective-C++ sur Mac

Question

J'utilise la variable d'environnement CPLUS_INCLUDE_PATH pour compiler des fichiers .cpp et il fonctionne très bien pour trouver les fichiers .h.

Mais ce n'est pas correct de compiler ObjC ou ObjC++.

Connaissez-vous la bonne variable.

Merci.

Answer 1

A partir de la page de manuel:

CPATH 
    C_INCLUDE_PATH 
    CPLUS_INCLUDE_PATH 
    OBJC_INCLUDE_PATH 
     Each variable’s value is a list of directories separated by a 
     special character, much like PATH, in which to look for header 
     files. The special character, "PATH_SEPARATOR", is target‐ 
     dependent and determined at GCC build time. For Microsoft Windows‐ 
     based targets it is a semicolon, and for almost all other targets 
     it is a colon. 

     CPATH specifies a list of directories to be searched as if 
     specified with −I, but after any paths given with −I options on the 
     command line. This environment variable is used regardless of 
     which language is being preprocessed. 

     The remaining environment variables apply only when preprocessing 
     the particular language indicated. Each specifies a list of 
     directories to be searched as if specified with −isystem, but after 
     any paths given with −isystem options on the command line. 

     In all these variables, an empty element instructs the compiler to 
     search its current working directory. Empty elements can appear at 
     the beginning or end of a path. For instance, if the value of 
     CPATH is ":/special/include", that has the same effect as 
     −I. −I/special/include.