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I have a program that includes: #include <sys/stat.h> but gives me the follow errors: ls2.c: In function `filemode': ls2.c:91: `S_IFMT' undeclared (first use in this function) ls2.c:91: (Each undeclared identifier is reported only once ls2.c:91: for each function it appears in.) ls2.c:92: `S_IFREG' undeclared (first use in this function) ls2.c:93: `S_IFDIR' undeclared (first use in this function) ls2.c:94: `S_IFCHR' undeclared (first use in this function) ls2.c:95: `S_IFBLK' undeclared (first use in this function) when I compile it with: gcc -std=gnu99 -D_POSIX_C_SOURCE=200112L -g -Wall ls2.c -o ls2 Adding a "-D_XOPEN_SOURCE=600" gets rid of the errors. But ... Isn't S_IFMT defined as part of POSIX and not part of the XSI extensions? http://www.opengroup.org/onlinepubs/007904975/basedefs/sys/stat.h.html I understand that S_IFREG, S_IFDIR, etc. are part of XSI, but my reading of The Open Group Base Specifications Issue 6, IEEE Std 1003.1, 2003 Edition has S_IFMT defined *outside* of XSI, so the error reported by gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7) on line 91 is in error. Is this right? Thanks. --- Vladimir ------------------------------------------------------------------------ Vladimir G. Ivanovic http://leonora.org/~vladimir 2770 Cowper St. vladimir@xxxxxxx Palo Alto, CA 94306-2447 +1 650 678 8014 _______________________________________________ Redhat-devel-list mailing list Redhat-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/redhat-devel-list