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-rw-r--r--imap.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/imap.h b/imap.h
index e4ac7ea..f9b3106 100644
--- a/imap.h
+++ b/imap.h
@@ -14,6 +14,9 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+#ifndef IMAP_H
+#define IMAP_H
+
 #include <err.h>
 #include <stdbool.h>
 #include <stdint.h>
@@ -136,3 +139,5 @@ static inline void respFree(struct Resp resp) {
 extern bool imapVerbose;
 FILE *imapOpen(const char *host, const char *port);
 struct Resp imapResp(FILE *imap);
+
+#endif /* IMAP_H */