diff --git a/configure.ac b/configure.ac
index 9b319f28..80ae2fe4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -446,10 +446,13 @@ if test "${enable_dnie_ui}" = "yes"; then
 	AC_DEFINE([ENABLE_DNIE_UI], [1], [Enable the use of external user interface program to request DNIe user pin])
 
 	case "${host}" in
-		*-*-darwin)
-			if test "${enable_dnie_ui}" = "yes"; then
-				LDFLAGS="${LDFLAGS} -framework Carbon"
-			fi
+		*-*-darwin*)
+			LDFLAGS="${LDFLAGS} -framework Carbon"
+		;;
+	esac
+	case "${host}" in
+		*-apple-*)
+			LDFLAGS="${LDFLAGS} -framework CoreFoundation"
 		;;
 	esac
 fi
diff --git a/src/libopensc/card-dnie.c b/src/libopensc/card-dnie.c
index 076d4415..d55920c6 100644
--- a/src/libopensc/card-dnie.c
+++ b/src/libopensc/card-dnie.c
@@ -163,6 +163,7 @@ const char *user_consent_message="Esta a punto de realizar una firma digital\nco
  */
 char *user_consent_msgs[] = { "SETTITLE", "SETDESC", "CONFIRM", "BYE" };
 
+#ifdef linux
 /**
  * Do fgets() without interruptions.
  *
@@ -181,6 +182,7 @@ static char *nointr_fgets(char *s, int size, FILE *stream)
 	}
 	return s;
 }
+#endif
 
 /**
  * Ask for user consent.