define INTERPOSE_REAL for functions we need, but don't implement in the interposer variant

src/include/longpath/longpath_tbl_functions.h

@@ -67,6 +67,10 @@ FUNCTION(ssize_t, getxattr, const char *, const char *, void *, size_t)
 FUNCTION(ssize_t, lgetxattr, const char *, const char *, void *, size_t)
 FUNCTION(int, setxattr, const char *, const char *, const void *, size_t, int)
 FUNCTION(int, lsetxattr, const char *, const char *, const void *, size_t, int)
+#if defined(INTERPOSE_REAL)
+FUNCTION(ssize_t, fgetxattr, int, const char *, void *, size_t)
+FUNCTION(int, fsetxattr, int, const char *, const void *, size_t, int)
+#endif
 #endif
 
 #if defined(INTERPOSE) && defined(TRACE)

src/longpath.c

@@ -131,6 +131,7 @@ extern int fstatat(int, const char *, struct stat *, int);
 /*
  * declaration of real() function pointers
  */
+# define INTERPOSE_REAL
 # define FUNCTION(type, name, ...) static type (* real(name))(__VA_ARGS__);
 # if ! defined(_LP64)
 #  define FUNCTION64(type, name, ...) static type (* real64(name))(__VA_ARGS__);
@@ -141,6 +142,7 @@ extern int fstatat(int, const char *, struct stat *, int);
 # include <longpath/longpath_tbl_functions64.h>
 # undef FUNCTION
 # undef FUNCTION64
+# undef INTERPOSE_REAL
 
 # include <dlfcn.h>
 # include <stdio.h>