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Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/ioperm.c')
-rw-r--r--sysdeps/unix/sysv/linux/alpha/ioperm.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/ioperm.c b/sysdeps/unix/sysv/linux/alpha/ioperm.c
index b39f39a0d7..63bf17588a 100644
--- a/sysdeps/unix/sysv/linux/alpha/ioperm.c
+++ b/sysdeps/unix/sysv/linux/alpha/ioperm.c
@@ -35,6 +35,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include <stdio.h>
+#include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>