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-rw-r--r--cat/bsdcat.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/cat/bsdcat.h b/cat/bsdcat.h
index 2e055e7c187c..6467d6e3d310 100644
--- a/cat/bsdcat.h
+++ b/cat/bsdcat.h
@@ -23,6 +23,9 @@
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
+#ifndef BSDCAT_H_INCLUDED
+#define BSDCAT_H_INCLUDED
+
#if defined(PLATFORM_CONFIG_H)
/* Use hand-built config.h in environments that need it. */
#include PLATFORM_CONFIG_H
@@ -54,3 +57,5 @@ void usage(FILE *stream, int eval);
void bsdcat_next(void);
void bsdcat_print_error(void);
void bsdcat_read_to_stdout(const char* filename);
+
+#endif