From: William Roberts <>

When building on Mac, outside of the Android tree, with ANDROID_HOST=y, this 
is observed:

label.c:102:9: warning: implicit declaration of function 'fgets_unlocked' is 
invalid in C99 [-Wimplicit-function-declaration]
        while (fgets_unlocked(buf, sizeof(buf) - 1, cfg)) {

Fix it by using the fgets_unlocked define that was introduced for Android, just 
apply it for mac builds
as well.

Signed-off-by: William Roberts <>
 libselinux/src/label_internal.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libselinux/src/label_internal.h b/libselinux/src/label_internal.h
index 6a9481a..3d7ff74 100644
--- a/libselinux/src/label_internal.h
+++ b/libselinux/src/label_internal.h
@@ -16,8 +16,8 @@
 #include "dso.h"
 #include "sha1.h"
-#ifdef ANDROID
-// Android does not have fgets_unlocked()
+#if defined(ANDROID) || defined(__APPLE__)
+// Android and Mac do not have fgets_unlocked()
 #define fgets_unlocked(buf, size, fp) fgets(buf, size, fp)

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