Prep v228: Substitute declaration masks (1/4)

Although it looks very ugly, substitute all declaration masks of the
form:

  // UNNEEDED type foo(...);

with:

  /// UNNEEDED by elogind
  #if 0
  type foo(...);
  #endif // 0

to make future merging of upstream pathes easier, as the relevant
lines themselves are not changed any more.

1 files changed, 18 insertions, 9 deletions

diff --git a/src/basic/fileio.h b/src/basic/fileio.h
index 23b76cdac..f45b0d54a 100644
--- a/src/basic/fileio.h
+++ b/src/basic/fileio.h
@@ -51,16 +51,19 @@ int load_env_file(FILE *f, const char *fname, const char *separator, char ***l);
 int load_env_file_pairs(FILE *f, const char *fname, const char *separator, char ***l);
 
 int write_env_file(const char *fname, char **l);
-
-// UNNEEDED int executable_is_script(const char *path, char **interpreter);
-
+/// UNNEEDED by elogind
+#if 0
+int executable_is_script(const char *path, char **interpreter);
+#endif // 0
 int get_proc_field(const char *filename, const char *pattern, const char *terminator, char **field);
 
 DIR *xopendirat(int dirfd, const char *name, int flags);
 
 int search_and_fopen(const char *path, const char *mode, const char *root, const char **search, FILE **_f);
-// UNNEEDED int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f);
-
+/// UNNEEDED by elogind
+#if 0
+int search_and_fopen_nulstr(const char *path, const char *mode, const char *root, const char *search, FILE **_f);
+#endif // 0
 #define FOREACH_LINE(line, f, on_error)                         \
         for (;;)                                                \
                 if (!fgets(line, sizeof(line), f)) {            \
@@ -74,11 +77,17 @@ int fflush_and_check(FILE *f);
 
 int fopen_temporary(const char *path, FILE **_f, char **_temp_path);
 int mkostemp_safe(char *pattern, int flags);
-// UNNEEDED int open_tmpfile(const char *path, int flags);
+/// UNNEEDED by elogind
+#if 0
+int open_tmpfile(const char *path, int flags);
+#endif // 0
 
 int tempfn_xxxxxx(const char *p, const char *extra, char **ret);
 int tempfn_random(const char *p, const char *extra, char **ret);
-// UNNEEDED int tempfn_random_child(const char *p, const char *extra, char **ret);
+/// UNNEEDED by elogind
+#if 0
+int tempfn_random_child(const char *p, const char *extra, char **ret);
 
-// UNNEEDED int write_timestamp_file_atomic(const char *fn, usec_t n);
-// UNNEEDED int read_timestamp_file(const char *fn, usec_t *ret);
+int write_timestamp_file_atomic(const char *fn, usec_t n);
+int read_timestamp_file(const char *fn, usec_t *ret);
+#endif // 0