The header file <termio.h> is obsolete. Instead use the
header <termios.h> and the struct termios for musl libc.

--- chuck-1.3.5.2/src/core/util_console.cpp	2015-10-21 11:04:45.000000000 +0200
+++ chuck-1.3.5.2/src/core/util_console.cpp	2015-10-25 15:50:25.091669947 +0100
@@ -95,9 +95,12 @@
 #ifdef __PLATFORM_MACOSX__
   #include <termios.h>
   static struct termios g_save;
-#else
+#elif defined(__GLIBC__)
   #include <termio.h>
   static struct termio g_save;
+#else
+  #include <termios.h>
+  static struct termios g_save;
 #endif
 
   #include <unistd.h>
@@ -122,9 +125,12 @@
 #ifdef __PLATFORM_MACOSX__
     struct termios term;
     if( ioctl( 0, TIOCGETA, &term ) == -1 )
-#else
+#elif defined(__GLIBC__)
     struct termio term;
     if( ioctl( 0, TCGETA, &term ) == -1 )
+#else
+    struct termios term;
+    if( ioctl( 0, TCGETA, &term ) == -1 )
 #endif
     { 
         EM_log( CK_LOG_SEVERE, "(kbhit disabled): standard input not a tty!");