https://github.com/termux/termux-packages/issues/15852

--- a/liblwgeom/ptarray.c
+++ b/liblwgeom/ptarray.c
@@ -26,6 +26,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <strings.h>
 #include <stdlib.h>
 
 #include "../postgis_config.h"