Fix apex build and warning message

https://github.com/Hamlib/Hamlib/issues/1159

rotators/apex/Android.mk

@@ -2,7 +2,7 @@ LOCAL_PATH:= $(call my-dir)
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := apex.c sharedloop.c
+LOCAL_SRC_FILES := apex.c apex.h sharedloop.c
 LOCAL_MODULE := apex
 
 LOCAL_CFLAGS := 

rotators/apex/Makefile.am

@@ -1,5 +1,5 @@
 
 noinst_LTLIBRARIES = libhamlib-apex.la
-libhamlib_apex_la_SOURCES = apex.c sharedloop.c
+libhamlib_apex_la_SOURCES = apex.c apex.h sharedloop.c
 
 EXTRA_DIST = Android.mk

rotators/apex/apex.c

@@ -6,7 +6,7 @@
 
 float apex_azimuth;
 
-char apex_info[64];
+char apex_info[65];
 
 static pthread_t apex_read_thread;
 
@@ -27,7 +27,7 @@ static int apex_get_string(ROT *rot, char *s, int maxlen)
     retval = read_string(&rs->rotport, (unsigned char *)buf,
                          sizeof(buf),
                          "\n", strlen("\n"), sizeof(buf), 1);
-    strncpy(s, buf, maxlen);
+    strncpy(s, buf, 64);
     strtok(s, "\r\n"); // truncate any CR/LF
     rig_debug(RIG_DEBUG_VERBOSE, "%s: %d bytes '%s'\n", __func__, retval, s);