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-rw-r--r--libfontenc/src/fontenc.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/libfontenc/src/fontenc.c b/libfontenc/src/fontenc.c
index 4cfa1e59b..7d0ddc589 100644
--- a/libfontenc/src/fontenc.c
+++ b/libfontenc/src/fontenc.c
@@ -25,6 +25,7 @@ THE SOFTWARE.
#include <string.h>
#include <strings.h>
#include <stdlib.h>
+#include <unistd.h>
#define FALSE 0
#define TRUE 1