Add missing libgen.h include to make compilers happy
diff --git a/src/ideviceinstaller.c b/src/ideviceinstaller.c
index d8c68ba..365da0b 100644
--- a/src/ideviceinstaller.c
+++ b/src/ideviceinstaller.c
@@ -31,6 +31,7 @@
 #include <getopt.h>
 #include <errno.h>
 #include <time.h>
+#include <libgen.h>
 
 #include <libimobiledevice/libimobiledevice.h>
 #include <libimobiledevice/lockdown.h>