diff --git a/configure.ac b/configure.ac
index b9487c3b..a50a08db 100644
--- a/configure.ac
+++ b/configure.ac
@@ -49,7 +49,7 @@ AC_CHECK_FUNCS(arc4random_buf futimes \
 	getentropy getrandom getspnam getusershell \
 	getutent initgroups lckpwdf lutimes \
 	setgroups updwtmp updwtmpx innetgr \
-	getgrgid_r getspnam_r \
+	getspnam_r \
 	memset_s explicit_bzero)
 AC_SYS_LARGEFILE
 
diff --git a/libmisc/xgetgrgid.c b/libmisc/xgetgrgid.c
index fe99929b..66398c5f 100644
--- a/libmisc/xgetgrgid.c
+++ b/libmisc/xgetgrgid.c
@@ -35,7 +35,7 @@
 #define ARG_TYPE	gid_t
 #define ARG_NAME	gid
 #define DUP_FUNCTION	__gr_dup
-#define HAVE_FUNCTION_R (defined HAVE_GETGRGID_R)
+#define HAVE_FUNCTION_R 1
 
 #include "xgetXXbyYY.c"