ExternC: advice for call/exec of extern "C" functions
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call "void b(char,char *)"
exec "void b(char,char *)"
b(H, ello World)
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call "void d(char,char *)"
exec "void d(char,char *)"
d(H, ello World)
call "void b(char,char *)"
exec "void b(char,char *)"
b(H, ello World)
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call "void b2(char,char *)"
exec "void b2(char,char *)"
b2(H, ello World)
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call "void d2(char,char *)"
exec "void d2(char,char *)"
d2(H, ello World)
call "void b2(char,char *)"
exec "void b2(char,char *)"
b2(H, ello World)
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