S_ISDIR           354 Zend/zend_virtual_cwd.h #define S_ISDIR(mode)	(((mode)&S_IFMT) == S_IFDIR)
S_ISDIR           259 ext/fileinfo/libmagic/apprentice.c #define S_ISDIR(mode) ((mode) & _S_IFDIR)
S_ISDIR            74 ext/fileinfo/libmagic/fsmagic.c #define S_ISDIR(mode) ((mode) & _S_IFDIR)