From: Érico Nogueira <ericonr@disroot.org>
Date: Fri, 17 Dec 2021 07:59:43 +0000 (-0300)
Subject: add SEEK_DATA and SEEK_HOLE to unistd.h
X-Git-Url: http://nsz.repo.hu/git/?a=commitdiff_plain;h=cbacd638e32a02edbe66c48ae3d1361bc06a492a;p=musl

add SEEK_DATA and SEEK_HOLE to unistd.h

these are linux specific constants. glibc exposes them behind
_GNU_SOURCE, but, since SEEK_* is reserved for the implementation, we
can simply define them. furthermore, since they can't be used with
fseek() and other functions that deal with FILE, we don't add them to
stdio.h.
---

diff --git a/include/unistd.h b/include/unistd.h
index ee2dbe8a..212263a7 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -14,6 +14,8 @@ extern "C" {
 #define SEEK_SET 0
 #define SEEK_CUR 1
 #define SEEK_END 2
+#define SEEK_DATA 3
+#define SEEK_HOLE 4
 
 #if __cplusplus >= 201103L
 #define NULL nullptr