__xpg4 155 maint/gnulib/lib/linkat.c extern int __xpg4; __xpg4 160 maint/gnulib/lib/linkat.c if (__xpg4 == 0) __xpg4 168 maint/gnulib/lib/linkat.c if (__xpg4 != 0) __xpg4 60 maint/gnulib/tests/test-linkat.c extern int __xpg4; __xpg4 61 maint/gnulib/tests/test-linkat.c # define EXPECT_LINK_HARDLINKS_SYMLINKS (__xpg4 == 0)