1 files changed, 8 insertions, 0 deletions

diff --git a/libbb/bb_getgroups.c b/libbb/bb_getgroups.c
index 31cff2b41..757b80be8 100644
--- a/libbb/bb_getgroups.c
+++ b/libbb/bb_getgroups.c
@@ -10,6 +10,7 @@
 
 #include "libbb.h"
 
+#if !ENABLE_PLATFORM_MINGW32
 gid_t* FAST_FUNC bb_getgroups(int *ngroups, gid_t *group_array)
 {
         int n = ngroups ? *ngroups : 0;
@@ -45,6 +46,7 @@ gid_t* FAST_FUNC bb_getgroups(int *ngroups, gid_t *group_array)
                 *ngroups = n;
         return group_array;
 }
+#endif
 
 uid_t FAST_FUNC get_cached_euid(uid_t *euid)
 {
@@ -60,6 +62,11 @@ gid_t FAST_FUNC get_cached_egid(gid_t *egid)
         return *egid;
 }
 
+#if !ENABLE_PLATFORM_MINGW32
+// Both current callers of is_in_supplementary_groups() check the gid
+// first.  Our implementation of getgroups() provides no additional
+// information so there's no reason to call it.
+
 /* Return non-zero if GID is in our supplementary group list. */
 int FAST_FUNC is_in_supplementary_groups(struct cached_groupinfo *groupinfo, gid_t gid)
 {
@@ -79,3 +86,4 @@ int FAST_FUNC is_in_supplementary_groups(struct cached_groupinfo *groupinfo, gid
 
         return 0;
 }
+#endif