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Diffstat (limited to 'src/libred.h')
| -rw-r--r-- | src/libred.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/libred.h b/src/libred.h index 9a2f7ba..5258de7 100644 --- a/src/libred.h +++ b/src/libred.h @@ -125,9 +125,15 @@ int libred_check_timetravel(void); /** * The file descriptor to the colour lookup table. + * -1 if none is open. */ extern int libred_fd; +/** + * Iff this macro is define `libred_fd` is available. + */ +#define LIBRED_HAVE_FD 1 + /** * This function must be called, once, |