diff options
Diffstat (limited to 'test/switchlevels.c')
| -rw-r--r-- | test/switchlevels.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/test/switchlevels.c b/test/switchlevels.c index 0f850113e2..a4ec4b7c76 100644 --- a/test/switchlevels.c +++ b/test/switchlevels.c @@ -2,6 +2,8 @@ * Each chunk is compressed with a user-specified level. */ +#define _POSIX_SOURCE 1 /* This file needs POSIX for fileno(). */ + #include "zbuild.h" #ifdef ZLIB_COMPAT # include "zlib.h" |